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DC12V 25A 300W High Power PFC+LLC Regulated Isolated Power Supply Dedicated for AB Power Amplifier Board
Description:
- This power supply is designed specifically for AB amplifier boards. Adopting IEM filtering purification circuit. Adopting a core active PFC management circuit, the output adopts a high current isolation transformer output. The circuit board adopts double-sided fiberglass board, aluminum alloy shell, super strong heat dissipation effect, ultra-low ripple interference and noise, which is very suitable for replacing ring transformers.
What is active PFC?
- Active PFC, on the other hand, is composed of inductors, capacitors, and electronic components. It has a small size and adjusts the waveform of the current through a dedicated IC to compensate for the phase difference between the current and voltage. Active PFC can achieve a high power factor, typically above 98%, but at a relatively high cost. In addition, active PFC can also be used as an auxiliary power supply, so in the use of active PFC circuits, standby transformers are often not required, and the ripple of the output DC voltage of active PFC is very small. This power supply does not need to use large capacity filtering capacitors.
Specification:
- Power: 300W
- Voltage range: AC 90-250V
- Rated frequency: 50Hz/60Hz
- Output voltage/current: DC 12V/25A (input voltage of AC220V)
- Output ripple: less than 100mV
- Voltage fine-tuning (adjustable resistor): ±10%
- Voltage accuracy: ±3%
- Linear regulation rate: ±1%
- Load regulation rate: ±3%
- Protection functions: over temperature, over voltage, over current, overload protection
- Output overcurrent protection: 110% - 150% output rated current, turn off output, can automatically restore
- Output overvoltage protection: 110% - 130% output rated voltage, turn off output, restart to restore
- Output short circuit protection: it can automatically recover after the short circuit is removed
- Over temperature protection: it can automatically recover after the temperature drops
- Working temperature: -25 ℃~+70 ℃
- Safety specification: IEC 62368
Package Included:
- 1 x Power Supply
- 1 x DC Power Cable
- 1 x AC Power Cable
Note:
- Please leave a message for the panel color (silvery/black) you want after payment.
