Switching power supply
AssigneesHon Hai Precision Industry Co., Ltd., Fu Tai Hua Industry (Shenzhen) Co., Ltd.
InventorREN-WEN HUANG
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Abstract
A switching power supply includes an input terminal, a voltage converter, a feedback circuit, and a pulse width modulation (PWM) controller. The input terminal receives a first direct current (DC) voltage. The voltage converter transforms the first DC voltage into a second DC voltage and provides the second DC voltage to a load via transmission lines. The feedback circuit is configured for detecting voltage lost across the transmission lines. The PWM controller controls the voltage converter to adjust the second DC voltage according to the voltage loss.
Claims13
A switching power supply comprising:
- an input terminal receiving a first direct current (DC) voltage;
- a voltage converter receiving and transforming the first DC voltage into a second DC voltage, and providing the second DC voltage to a load via transmission lines;
- a feedback circuit detecting a voltage loss across the transmission lines;
- and
- a pulse width modulation (PWM) controller providing PWM signal to the voltage converter, and controlling the voltage converter to compensate the second DC voltage according to the voltage loss.
Dependencies are inferred from the claim text.