72W Digital Linear Regulated Power Supply Board LCD1602
72W Digital Linear Regulated Power Supply Board LCD1602
72W Digital Linear Regulated Power Supply Board with LCD1602 Display
Take full control of your electronics projects with this precision-engineered 72W Digital Linear Regulated Power Supply Board. Powered by the enhanced STC12C5204AD 51 MCU microcontroller and featuring a clear LCD1602 display, this module delivers stable, adjustable DC output with real-time monitoring — ideal for makers, engineers, electronics hobbyists, and lab bench setups.
Key Features
- Main Controller: STC12C5204AD Enhanced 51 MCU for reliable digital control
- Linear Voltage Regulation: Op-amp-driven MOS tube for smooth, low-noise output
- LCD1602 Display: Shows input voltage, preset output voltage, real-time temperature, alarm temperature, and current limit value at a glance
- Wide Input Range: DC 8–35V or AC 6–24V — works with most bench power adapters and transformers
- Adjustable Output Voltage: Up to 24V in precise 0.1V increments via onboard keys (output reaches 24V when DC input exceeds 29V)
- Maximum Output Power: 72W — capable of handling demanding load requirements
- Onboard Potentiometer: Fine-tune and calibrate output voltage with ease
- Thermal Protection: Power tube protection temperature is user-adjustable from 10°C to 99°C; output cuts off on overtemperature and automatically restores when temp drops 10°C below threshold
- Voltage Regulation Rate: ≤1% under 12–30V DC input with a fixed 5Ω load and 5V output
- Load Regulation Rate: ≤1% with 12V fixed input, 5V output, and current range 0.01A–1A
Technical Specifications
| Microcontroller | STC12C5204AD Enhanced 51 MCU |
| Regulation Type | Linear (op-amp + MOS tube) |
| Input Voltage | DC 8–35V / AC 6–24V |
| Output Voltage | Up to 24V (adjustable, 0.1V step) |
| Max Output Power | 72W |
| Display | LCD1602 |
| Voltage Regulation Rate | ≤1% |
| Load Regulation Rate | ≤1% |
| Thermal Cutoff Range | 10°C – 99°C (user-adjustable) |
| EU LVD Voltage | Low voltage: Below 50Vac or 75Vdc |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1× Digital Linear Regulated Power Supply Board
Notes
- Due to screen and lighting differences, actual color may vary slightly from images.
- Please allow a 1mm–1cm measurement tolerance due to manual measurement.
For more guidance on electronics safety and low-voltage equipment standards, visit the U.S. Consumer Product Safety Commission – Electrical Safety.
Frequently Asked Questions
Q: What input voltage does this digital linear regulated power supply board support?
A: The board accepts a wide input range of DC 8–35V or AC 6–24V, making it compatible with most standard bench power adapters, transformers, and lab power sources.
Q: How do I adjust the output voltage on the LCD1602 power supply board?
A: Output voltage is adjusted using the onboard keys in precise 0.1V increments, up to a maximum of 24V. An onboard potentiometer also allows fine calibration of the output voltage for accurate readings.
Q: What happens if the board overheats during operation?
A: The board features built-in thermal protection. You can set a cutoff temperature between 10°C and 99°C. If the power tube temperature exceeds your set threshold, output is automatically cut off and restored once the temperature drops 10°C below the alarm threshold.
Q: What information does the LCD1602 display show?
A: The LCD1602 screen displays real-time input voltage, preset output voltage, current temperature, alarm temperature setting, and the current limit value — giving you full visibility of the module's operating status at all times.