Output voltage compensation device
First Claim
1. An output voltage compensation device being adapted to make effective output voltage compensation and provide stable output voltage, and comprising a Bark converter, a current detection resistance connected with an output end of the Bark converter, and a Pulse Width Modulation (PWM) controller, a sense resistance being series connected to a front end of the current detection resistance at an output end of the Bark converter for detecting voltage signals, voltage at a voltage setting point of the PWM controller being promoted according to the detected voltage signals, thereby adjusting work cycle of the Bark converter for the purpose of voltage compensation.
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Abstract
An output voltage compensation device has a Bark converter, a current detection resistance, a sense resistance, a voltage feedback circuit and a Pulse Width Modulation (PWM) controller. The current detection resistance is series connected with an output end of the Bark converter. Voltage at a front end of the current detection resistance is detected by the sense resistance, and compares with actual output voltage. Based on the compared result, the PWM controller adjusts work cycle of the Bark converter for voltage compensation.
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Citations
5 Claims
- 1. An output voltage compensation device being adapted to make effective output voltage compensation and provide stable output voltage, and comprising a Bark converter, a current detection resistance connected with an output end of the Bark converter, and a Pulse Width Modulation (PWM) controller, a sense resistance being series connected to a front end of the current detection resistance at an output end of the Bark converter for detecting voltage signals, voltage at a voltage setting point of the PWM controller being promoted according to the detected voltage signals, thereby adjusting work cycle of the Bark converter for the purpose of voltage compensation.
Specification