| 摘要 |
A power source system and a control method therefor. The power source system (100) comprises a pulse width modulation (PWM) power source (110), a voltage detection unit (130), a current detection unit (150) and a feedback signal generation unit (170). The PWM power source receives an external direct current input via a direct current input end (IN), performs pulse width modulation on the received external direct current input, and supplies a PWM output obtained by the pulse width modulation to a device to be supplied with power via a direct current output end (OUT). The voltage detection unit (130) detects the amplitude of a voltage of the PWM output, and the current detection unit (150) detects the amplitude of a current of the PWM output. The feedback signal generation unit (170) generates a feedback signal, and supplies the generated feedback signal to the PWM power source (110). The PWM power source (110) adjusts the amplitude of the voltage and the amplitude of the current of the PWM output according to the received feedback signal. |
