Precision-regulated 12 V DC benchtop power supplies designed for electronics laboratories, embedded systems development, and power electronics bring-up testing.
AuMi Laboratory Power Supply Units provide a clean, stable 12 V DC output for bench testing of embedded control units, motor drive circuits, sensor modules, and general electronics prototypes. Built on a linear regulation stage (or SMPS + LDO hybrid for higher current models) with front-panel current limiting and clear digital metering, these units are engineered to meet the needs of professional electronics and power electronics laboratories.
The 12 V PSU line spans three variants: a compact 5 A linear model for sensitive low-noise bench work (ideal for RF, audio, and analog prototyping), a 10 A SMPS+LDO hybrid for mixed-signal and digital systems, and a 20 A high-current unit for motor drive and power electronics lab bring-up — matching the test bench needs of AuMi's own inverter, BMS, and MCU development work.
All models feature front-panel constant-current (CC) and constant-voltage (CV) adjustment with a rotary encoder, backlit digital display showing simultaneous voltage and current readout, and a binding-post output with 4-mm banana terminals and a ground lug.
Block diagram — AuMi Linear Laboratory PSU (5 A model)
Three variants covering bench-top, development, and power electronics lab requirements.
Precision rotary encoder for setting constant voltage and current limits — locks smoothly at setpoint without overshoot.
Simultaneous V and A display on backlit LCD — shows actual output values, not setpoints, for accurate monitoring.
Linear models deliver sub-1 mV rms noise — essential for noise-sensitive ADC, RF, and audio test work.
Over-voltage protection, short-circuit protection, thermal shutdown, and reverse polarity guard on all output terminals.
4 mm binding-post output terminals with floating GND lug — compatible with standard laboratory probe leads and power cables.
Temperature-controlled cooling fan on 10 A and 20 A models keeps noise minimal at light loads and cools automatically under full load.
All PSU-12V series share these baseline electrical and safety parameters.
| Electrical | |
|---|---|
| Output Voltage | 12 V DC (fixed) |
| Line Regulation | ±0.1% |
| Load Regulation | ±0.5% |
| Temperature Coefficient | < 100 ppm/°C |
| CC Accuracy | ±1% of full scale |
| Mains Input | 230 V AC ± 10%, 50 Hz |
| Safety & Environment | |
|---|---|
| OVP | Hardware crowbar at 13.5 V |
| OCP | CC mode fold-back |
| Short-Circuit | Protected, auto-recovers |
| Thermal Shutdown | Yes, auto-restart on cool-down |
| Operating Temp | 0 – 50°C |
| Display | Dual LCD (V + A simultaneous) |
General purpose 12 V supply for prototype bring-up, component characterisation, and circuit debugging.
Power STM32 / CAN / BMS prototype boards during firmware bring-up with accurate current visibility to catch shorts early.
High-current 20 A model used for bench testing gate drivers, buck converters, and auxiliary power stages before integration.
Safe, metered power for teaching electronics, robotics, and embedded engineering in academic and training laboratories.
Contact AuMi to select the right model for your lab, or to request custom output voltages and current ratings.
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