{"product_id":"udp6953b","title":"UDP6953B 600W 150V\/10A Programmable DC Switching Power Supply","description":"\u003ch1\u003eUNI-T UDP6953B DC Switching Power Supply\u003c\/h1\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe UDP6953B is UNI-T's 600W programmable DC switching supply at the 150V class — the spec for SiC half-bridge characterization, fast EV charger DC-link emulation, and high-power solar inverter input stress testing. Auto-range output delivers up to 150V at reduced current, 10A at reduced voltage, or any combination within the 600W envelope from a single instrument.\u003c\/p\u003e\n\u003cp\u003eFull programmable interface set: USB Device, USB Host, RS-232, RS-485, LAN with web control, and external analog I\/O — with SCPI, Multi-SCPI, and Modbus RTU command support. Built-in 4½-digit DVM monitors a second voltage point on the DUT without an external instrument. Slope control configures rise\/fall rates independently in voltage-slope (VSR) and current-slope (ISR) modes for soft start\/stop. Remote sense (S+\/S−) compensates for IR drop on the test leads. List mode and delayer functions program up to 512 voltage\/current\/time groups, stored to internal Flash or USB.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n        \u003cp\u003e\u003cstrong\u003eDesign.\u003c\/strong\u003e Sourcing the bench supply for a SiC half-bridge characterization or EV charger DC-link emulator is the first commit. 600 W and 150 V at 1 mV \/ 0.1 mA resolution covers the operating envelope where wide-bandgap power electronics actually live, with the four-wire sense and slope-controlled startup that DUT-protective work requires from the first turn-on. Affordability meets precision: the UDP6953B replaces a far more expensive programmable supply for the same V\/I\/W envelope and resolution.\u003c\/p\u003e\n        \u003cp\u003e\u003cstrong\u003eDebug.\u003c\/strong\u003e At validation, the 4½-digit DVM and 512-group list mode replace a second DMM and an external sequencer. Capture power-up profiles, automate efficiency sweeps, and record DUT-side voltage drift while sourcing — without leaving the supply's front panel or rebuilding the test harness.\u003c\/p\u003e\n        \u003cp\u003e\u003cstrong\u003eDeploy.\u003c\/strong\u003e Production go\/no-go testing runs over LAN with SCPI, Multi-SCPI, or Modbus RTU. The web server gives a shared bench remote access without a host-software install. RS-485 multi-machine networking scales the station as the throughput requirement does. From first prototype to production verification — design, debug, deploy.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-phase-frame\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162258\/UDP6900_Front.jpg\" alt=\"UDP6953B for design, debug, deploy lifecycle\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6953B — from prototype bench to production rack\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-phase-frame\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162258\/UDP6900_Front.jpg\" alt=\"UDP6953B for design, debug, deploy lifecycle\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6953B — from prototype bench to production rack\u003c\/span\u003e\n\u003c\/a\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"product-key-features\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e600W Auto-Range Output (0–150V, 0–10A)\u003c\/strong\u003e — Flexible V\/I combinations within rated power. One supply handles multiple test configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy \u0026amp; Low Ripple\u003c\/strong\u003e — 1 mV\/0.1 mA resolution with low ripple and noise for sensitive DUT testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP\/OCP Protection\u003c\/strong\u003e — Independent over-voltage and over-current protection with configurable thresholds protects devices under test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eList Mode \u0026amp; Delay Function\u003c\/strong\u003e — Program voltage\/current sequences with configurable timing for automated test profiles and battery charge simulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlope Control\u003c\/strong\u003e — Configurable rise\/fall rates for soft start\/stop, preventing inrush damage to sensitive loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Sense\u003c\/strong\u003e — Four-wire sensing compensates for voltage drop in test leads, ensuring accurate voltage at the load terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In DVM\u003c\/strong\u003e — Independent digital voltmeter for monitoring a second voltage point without additional equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Remote Control \u0026amp; Multi-Machine\u003c\/strong\u003e — Browser-based control via LAN. Master\/slave communication for series\/parallel multi-unit configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eFront-Panel Interface\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n        \u003cp\u003eA 4.3-inch true color LCD shows set voltage and current alongside actual output values, with output power computed and displayed in real time. The numeric keypad sets values directly without menu diving; the rotary encoder fine-tunes when a small adjustment is faster than typing. Soft-keys map to the function actually in use — list mode, slope, OVP\/OCP, or DVM — instead of burying them in nested menus. Output enable is a dedicated hardware button, always visible, never one click away from a keystroke mistake.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-multifunctional-inte\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/UDP6953B_1.jpg\" alt=\"UDP6953B front panel\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6953B front panel — keypad, encoder, and dedicated soft-keys\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-multifunctional-inte\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/UDP6953B_1.jpg\" alt=\"UDP6953B front panel\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6953B front panel — keypad, encoder, and dedicated soft-keys\u003c\/span\u003e\n\u003c\/a\u003e\n\n\n  \u003cdiv class=\"product-container\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eRemote Sense\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n\u003cp\u003eLong test leads drop voltage. At higher currents, the drop is no longer a rounding error — a 10 A draw across a meter of 16 AWG returns roughly 50 mV less to the load than the supply set. The UDP6900 series corrects for this with four-wire remote sense: connect the output's \u003cstrong\u003e+\u003c\/strong\u003e and \u003cstrong\u003e−\u003c\/strong\u003e terminals to the load through the current-carrying leads, then run a separate pair from \u003cstrong\u003eS+\u003c\/strong\u003e and \u003cstrong\u003eS−\u003c\/strong\u003e directly to the device under test. The supply servo's regulation point shifts from its own terminals to the load's terminals — and the 1 V SENSE compensation headroom keeps the rail accurate where it actually matters.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-img10\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162270\/UDP6900_Remote_Sense.jpg\" alt=\"UDP6900 Remote Sense\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 Remote Sense\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-img10\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162270\/UDP6900_Remote_Sense.jpg\" alt=\"UDP6900 Remote Sense\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6900 Remote Sense\u003c\/span\u003e\n\u003c\/a\u003e\n\n\n  \u003cdiv class=\"product-container\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eOver-Voltage\/Over-Current Protection (OVP\/OCP) \u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n        \u003cp\u003eIndependent over-voltage and over-current thresholds, both set from the front panel. When either limit trips, the supply latches output off and posts the trigger on the LCD — the kind of unambiguous fault state that matters when a DUT failure during overnight characterization could otherwise damage hardware or lose a test run. Thresholds persist across power cycles and survive front-panel lock for unattended operation.\u003c\/p\u003e\n\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-over-voltage-over-cu\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162266\/UDP6900_OVP.jpg\" alt=\"UDP6900 OVP\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 Protection Modes\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-over-voltage-over-cu\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162266\/UDP6900_OVP.jpg\" alt=\"UDP6900 OVP\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6900 Protection Modes\u003c\/span\u003e\n\u003c\/a\u003e\n\n\n  \n  \u003cdiv class=\"product-container\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eList Output and Delay Function\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n       \u003cp\u003eList mode programs up to 512 voltage\/current\/time groups, executed in sequence — essential at 600 W and 150 V for SiC half-bridge characterization (where DUT-stress profiles walk through bus-voltage steps at controlled timing), for EV charger DC-link emulation across charge-cycle profiles, and for high-power dielectric withstand sequencing. The delay function programs output on\/off sequencing for high-power cycling tests. Files save to Flash or USB in \u003ccode\u003e.lst.csv\u003c\/code\u003e and \u003ccode\u003e.dly.csv\u003c\/code\u003e formats — Excel-editable.\u003c\/p\u003e\n      \u003c\/div\u003e\n\t\t\t \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-img8\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162264\/UDP6900_Delayer.jpg\" alt=\"UDP6900 Delayer\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 Delayer\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n\t\t\t\n     \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-img8\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162264\/UDP6900_Delayer.jpg\" alt=\"UDP6900 Delayer\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6900 Delayer\u003c\/span\u003e\n\u003c\/a\u003e\n\n\n  \u003cdiv class=\"product-container\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eSlope Mode Options\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n       \u003cp\u003eAt 600 W into a 150 V rail, an uncontrolled rise into a capacitive load is the kind of event that ends test runs — and possibly DUTs. Three configurable slope modes prevent it. Normal mode steps directly to the set value when speed matters. Voltage Slope (VSR) ramps voltage at a configurable rate per second, controlling inrush into bulk caps and EV-class DC-link emulators. Current Slope (ISR) does the same for current — essential when characterizing SiC half-bridges where dV\/dt at startup determines whether the gate driver rings or sits clean. Soft-start at a known rate, every time.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-img7\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162258\/UDP6900_Slope_Mode.jpg\" alt=\"UDP6900 Slope Mode\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 Slope Mode\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-img7\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162258\/UDP6900_Slope_Mode.jpg\" alt=\"UDP6900 Slope Mode\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6900 Slope Mode\u003c\/span\u003e\n\u003c\/a\u003e\n\n\n  \u003cdiv class=\"product-container\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eAuto Range Functionality\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n     \u003cp\u003eAcross the full 600 W envelope, the UDP6953B reconfigures from 150 V at 4 A — for high-voltage stress testing of SiC gate drivers and PV inverter input stages — down to 10 A at 60 V for low-voltage SiC half-bridge characterization, all from one instrument. Auto-range output is controlled by the rated power envelope, not by hardware range switching, which means a single supply replaces what most labs run as two: a high-voltage low-current rail and a lower-voltage higher-current rail.\u003c\/p\u003e\n\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-auto-range-functiona\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162267\/UDP6900_Auto_Range.jpg\" alt=\"UDP6900 Auto Range\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 Auto Range\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-auto-range-functiona\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162267\/UDP6900_Auto_Range.jpg\" alt=\"UDP6900 Auto Range\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6900 Auto Range\u003c\/span\u003e\n\u003c\/a\u003e\n\n\n  \u003cdiv class=\"product-container\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eBuilt-in Digital Voltmeter (DVM)\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n       \u003cp\u003eA built-in 4½-digit voltmeter measures DC voltage on a separate rear-panel pair, displayed alongside the supply's own readbacks on the LCD. For a two-rail bench scenario — measuring the load's regulated DC at the same time the supply is sourcing it — the DVM eliminates a second instrument. Range is 0.001–65.000 V on the 60 V models, up to 160 V on the UDP6933B and UDP6953B.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-built-in-digital-vol\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162269\/UDP6900_DVM.jpg\" alt=\"UDP6900 DVM\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 DVM\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-built-in-digital-vol\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162269\/UDP6900_DVM.jpg\" alt=\"UDP6900 DVM\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6900 DVM\u003c\/span\u003e\n\u003c\/a\u003e\n\n\n  \n\t  \u003cdiv class=\"product-container\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eMultiple Main Menu Options\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n       \u003cp\u003eThe main menu structure is shallow by design. Five top-level sections — Monitor, System Settings, User Group, Output Settings, Language — each one or two presses from the front panel. Monitor displays live V\/I\/P\/DVM with per-channel alarms when set conditions deviate. Output Settings configure operating mode, power-up output, and slope. System Settings hold backlight, sound, RS-232\/network, and a factory-default restore. The menu hierarchy never exceeds two levels — depth defeats front-panel work, and the UDP6900 doesn't ask the operator to memorize trees.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-multiple-main-menu-o\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162263\/UDP6900_Settings.jpg\" alt=\"UDP6900 Settings\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 Settings\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-multiple-main-menu-o\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162263\/UDP6900_Settings.jpg\" alt=\"UDP6900 Settings\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6900 Settings\u003c\/span\u003e\n\u003c\/a\u003e\n\n\t\n\t\n\t  \u003cdiv class=\"product-container\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eComputer Software and Remote Control\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n       \u003cp\u003eThe UDP6900 series ships with free PC control software — UNI-T's UDP9000 host application, common across the programmable PSU line. Set voltage and current remotely, log readbacks to disk, sequence list and delay programs, and automate complete characterization runs without writing a SCPI parser. For scripted environments, the supply speaks SCPI, Multi-SCPI, and Modbus RTU natively over USB-Device, RS-232, RS-485, or LAN — pick the bus that fits the test station.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-computer-software-an\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162262\/UDP6900_Software.jpg\" alt=\"UDP6900 Software\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 Software\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-computer-software-an\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162262\/UDP6900_Software.jpg\" alt=\"UDP6900 Software\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6900 Software\u003c\/span\u003e\n\u003c\/a\u003e\n\n\t\n\t\n\t  \u003cdiv class=\"product-container\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eMulti-Machine Communication\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n       \u003cp\u003eRS-485 networking links multiple UDP6900 supplies to a single host. Master\/slave configurations enable series-stack for higher voltage or parallel-stack for higher current — useful for multi-rail bench setups or when a single test station needs more total power than one chassis provides. One SCPI session, many supplies, synchronized output.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-multi-machine-commun\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162261\/UDP6900_Multi-machine.jpg\" alt=\"UDP6900 Multi-machine\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 Multi-machine\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003ca id=\"lb-udp6953b-multi-machine-commun\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162261\/UDP6900_Multi-machine.jpg\" alt=\"UDP6900 Multi-machine\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP6900 Multi-machine\u003c\/span\u003e\n\u003c\/a\u003e\n\n\t\n\t\n\t  \u003cdiv class=\"product-container\"\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003cdiv class=\"product-row\"\u003e\n\u003cdiv class=\"product-box product-left\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eWeb Control\u003c\/h2\u003e\n    \u003cdiv class=\"product-row\"\u003e\n      \u003cdiv class=\"product-box product-left\"\u003e\n       \u003cp\u003eLAN connection brings up an embedded web server — open the supply's IP in any browser to set parameters, run list and delay programs, and configure system settings. No vendor application install on the host machine, no driver headache when the bench runs Linux or a tablet workstation. For shared lab benches and remote-monitored automation, the browser interface is often the cleanest path.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"product-box product-right\"\u003e\n        \u003cfigure class=\"product-figure\"\u003e\n          \n          \u003cfigcaption class=\"product-figcaption\"\u003eUDP6900 Web Control\u003c\/figcaption\u003e\n        \u003c\/figure\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\t\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003cdiv class=\"product-box product-right\"\u003e\n\u003cfigure class=\"product-figure\"\u003e\n\u003ca href=\"#lb-udp6953b-hero\" class=\"product-thumb-link\"\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162260\/UDP6900_Web_Control.jpg\" alt=\"\" class=\"product-image-thumb\"\u003e\n\u003c\/a\u003e\n\u003cfigcaption class=\"product-figcaption\"\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ca id=\"lb-udp6953b-hero\" href=\"#_\" class=\"product-lightbox\"\u003e\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1726162260\/UDP6900_Web_Control.jpg\" alt=\"\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003e\u003c\/span\u003e\n\u003c\/a\u003e\n\n\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cdiv class=\"product-app-grid\"\u003e\n\u003cdiv class=\"product-app-card\"\u003e\n\u003ch3\u003eSiC\/GaN Power Electronics Development\u003c\/h3\u003e\n\u003cp\u003e150V at 10A in a 600W envelope is the spec for SiC half-bridge characterization, GaN device-level bench work below the 100V class, and the rising tier of wide-bandgap power electronics R\u0026amp;D. Slope control provides clean rise\/fall for sensitive HV gate-drive supplies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-app-card\"\u003e\n\u003ch3\u003eEV Charging \u0026amp; High-Voltage DC Bus\u003c\/h3\u003e\n\u003cp\u003eFast-charger DC-link voltage emulation for AC\/DC and DC\/DC stage qualification, 100V-class EV traction inverter front-end testing, and high-voltage power converter bench work. Auto-range gives flexible V\/I combinations within the 600W envelope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-app-card\"\u003e\n\u003ch3\u003eSolar Inverter \u0026amp; Renewable Energy Bench\u003c\/h3\u003e\n\u003cp\u003e150V output suits solar inverter input-stage testing, MPPT algorithm validation under controlled source conditions, and string-inverter front-end development. List mode runs realistic PV-curve profiles for repeatable testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-app-card\"\u003e\n\u003ch3\u003eIndustrial HV Test Lab\u003c\/h3\u003e\n\u003cp\u003eFull SCPI over USB, RS-232, RS-485, and LAN. The built-in 4½-digit DVM (up to 160V DC) monitors a second voltage point during HV testing without an external instrument. Web control via browser; multi-machine RS-485 for scaled configurations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003cp class=\"product-faq-question\"\u003eWhat does the built-in DVM measure on this model?\u003c\/p\u003e\n\u003cp\u003eOn the UDP6953B, the built-in 4½-digit voltmeter measures DC voltages up to 160V through rear-panel terminal inputs (vs 65V on the lower-voltage UDP6900B models). Useful for monitoring a second voltage point on the DUT — e.g., HV bus voltage during converter dev — without an external instrument.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003cp class=\"product-faq-question\"\u003eIs the UDP6953B suitable for SiC and GaN device characterization?\u003c\/p\u003e\n\u003cp\u003eFor SiC and GaN device-level work below the 100V class, yes — the 150V output covers gate-drive supply rails, accessory-circuit power, and 100V-class DC bus emulation. For higher-voltage SiC work specifically (650V or 1200V class), this supply provides the auxiliary low\/medium-voltage rails; the high-voltage DUT rails come from a higher-class HV supply outside the UDP6900B family.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003cp class=\"product-faq-question\"\u003eWhat does auto-range mean?\u003c\/p\u003e\n\u003cp\u003eAuto-range means the supply delivers any voltage\/current combination within the rated 600W envelope. The UDP6953B can output 150V at reduced current or 10A at reduced voltage — the power limit is the constraint, not fixed V\/I maximums independently.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003cp class=\"product-faq-question\"\u003eWhat's the difference between the UDP6700 and UDP6900B series?\u003c\/p\u003e\n\u003cp\u003eThis family (UDP6900B) sits above the UDP6700, adding auto-range output, slope control, built-in DVM, web control over LAN, RS-485 for multi-machine networking, USB Device, Modbus RTU, and external analog control. UDP6700 provides the core CV\/CC + list-mode + remote-compensation feature set with RS-232 SCPI at a lower price.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003cp class=\"product-faq-question\"\u003eCan I connect multiple UDP6900B units for higher power?\u003c\/p\u003e\n\u003cp\u003eYes. Multi-machine communication via RS-485 enables master\/slave configurations — connect units in series for higher voltage or parallel for higher current, controlled from a single master or via SCPI commands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003cp class=\"product-faq-question\"\u003eWhat's included with the UDP6953B?\u003c\/p\u003e\n\u003cp\u003eThe UDP6953B ships with the instrument, power cable Test leads and sense leads available separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eHow does the UDP6953B compare to the UDP6933B for high-voltage SiC work?\u003c\/h3\u003e\n\u003cp\u003eBoth reach 150 V; the UDP6953B doubles the current capacity (10 A vs 5 A) and triples the power envelope (600 W vs 200 W). For SiC half-bridge characterization where the device under test draws meaningful current at full bus voltage — bus-cap charging, shoot-through fault testing, switching loss measurement under continuous load — the UDP6953B handles the working point the UDP6933B can only momentarily touch. For lower-current work like dielectric stress and gate-leakage measurement, the UDP6933B is the value-tier match.\u003c\/p\u003e","brand":"UNI-T","offers":[{"title":"181400100154X","offer_id":52964836180252,"sku":"181400100154X","price":1699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/9208\/0924\/files\/UDP6953B_1_sq.jpg?v=1723076183","url":"https:\/\/uni-trendus.com\/products\/udp6953b","provider":"Uni-Trend US","version":"1.0","type":"link"}