CONSTANT-POWER POWER SUPPLY APPARATUS AND SUNLIGHT SIMULATION DEVICE

摘要

The present utility model relates to a constant-power power supply apparatus and a sunlight simulation device. The constant-power power supply apparatus comprises a power board and a control board. The power board comprises: a power supply input circuit for providing a power supply input; a power conversion circuit connected to the power supply input circuit; a voltage detection circuit, a current detection circuit and a power output circuit which are each connected to the power conversion circuit; and a first connector connected to the power conversion circuit, the voltage detection circuit and the current detection circuit. The control board comprises: a second connector in pluggable connection with the first connector; a voltage processing circuit and a current processing circuit each connected to the second connector; a multiplier circuit connected to the voltage processing circuit and the current processing circuit; and a PWM modulation circuit connected to the current processing circuit, the multiplier circuit and the second connector. By means of the implementation of the present utility model, a stable power output can be provided, and the reliability of the circuit can be ensured.