50V / 20A SMPS DC Regulated Power Supply with PC Interface (1000W)

About.

The Vartech 5020 SR is a 1000 W single-output SMPS power supply delivering 0–50 V / 0–20 A with PC interface. The 50 V range suits EV module testing, LED driver testing and power electronics research. Features PWM control, auto CV/CC, adjustable OVP/OCP/OPP, encoder coarse & fine control, preset V & I, Output On/Off, 4-digit LED displays and ModBus-RTU communication via USB.

• Advanced PWM (SMPS) control technology - compact and light weight
• Auto CV/CC switch with Coarse & Fine encoder control for V and I
• Pre-setting of voltage & current with Output ON/OFF switch
• OVP (adjustable, ≤110% FS), OCP (≤110% FS), OPP (≤100% FS), OTP protections
• 4-digit LED displays for voltage and current (set + readback)
• PC interface: USB standard (RS232 / RS485 optional); ModBus-RTU protocol
• Intelligent temperature-controlled cooling fan
• Low ripple & noise (≤ 0.5% FS rms)

Specifications.

Output Power

1000 W

Output Voltage

DC 0–50 V (full range adjustable)

Output Current

DC 0–20 A (full range adjustable)

Working Mode

PWM (SMPS)

OVP Range

DC 1–110 % FS (adjustable)

OCP Range

DC 1–110 % FS

OPP Range

DC 1–100 % FS

Line Regulation

≤ 0.5 % FS

Load Regulation

≤ 0.5 % FS

Ripple & Noise

≤ 0.5 % FS rms

Setting Accuracy

0.1 % FS + 1 digit

Readback Accuracy

0.1 % FS + 1 digit

Display

4-digit LED - Voltmeter + Ammeter

Voltage Resolution

0.000–9.999 V | 00.00–99.99 V | 000.0–999.9 V (auto)