Adjustable DC power supply.

Application range:

1. Factory product test aging: such as DC motor, DC fan, car DVD, car audio, resistance, capacitance and other products test aging.

2. Battery charging industry: it is used in the battery charging industry, providing constant current charging first and then converting to constant voltage trickle charging to prevent overcharge, protect the battery and effectively extend the service life of the battery.

3. Inverter Industry: it overcomes the stuck problem of linear power relay conversion, and has extremely fast response speed to meet the requirements of transient load changes.

4. LED manufacturing industry: LED testing, aging.

5. All other occasions requiring DC regulated power supply.

According to the output voltage and output current, the product can be divided into six models. The specific parameters of one of them are introduced below.

Qw-ms305d product introduction

Product features:

1. Thickened steel plate case, beautiful and durable. Handle design, easy to carry.

2. The voltage and current are designed with coarse and fine adjustment to accurately adjust the output voltage value.

3. Automatic conversion of constant voltage and constant current can be used as constant voltage source or constant current source.

4. Perfect protection function: over voltage protection (OVP), short circuit protection (OCP), over temperature protection (OTP).

5. The circuit design is reasonable, the key parts are imported, and can be used with full load for 24 hours.

6. PWM switch pre voltage regulation, MOS linear adjustment mode, high efficiency, performance close to linear power supply, efficiency is far higher than linear power supply, linear power supply update products.

7. Intelligent temperature control fan, adjust the speed according to the load, effectively reduce the noise and prolong the life of the fan.

Technical parameters:

1. Input voltage: 220 V, 50 Hz (default)

110V 60Hz (customized)

115V / 230V (customized, manual switching)

2. Output voltage: DC 0-30V continuously adjustable

3. Output current: DC 0-5A continuously adjustable

4. Display resolution: voltage 0.1V, current 0.01A. (higher display accuracy can be customized)

5. Display accuracy: ± 1% ± 1 words

6. Voltage stability: ≤ 0.05% + 1mV

7. Current stability: ≤ 0.1% + 10mA

8. Load stability: CV ≤ 0.1% + 1mV CC ≤ 0.1% + 10mA

9. Ripple and noise: CV ≤ 10mV (RMS) CC ≤ 20mA (RMS)

10. Cooling mode: forced air cooling by intelligent temperature control fan. The fan starts when the temperature is higher than 40 ℃, and stops when the temperature is lower than 35 ℃.

11. Working environment: - 10-40 ℃ relative humidity<80%

12. Storage environment: - 20-80 ℃, relative humidity<80%

13. Appearance dimension: length 260 * width 125 * height 155mm (excluding protrusion)