PD power circuit and PD power equipment based on PPS specification

By adopting controllers and signal processing circuits based on PPS specifications in the PD power supply circuit, the problems of high cost and low accuracy of traditional PD power supply circuits are solved, and high-precision and low-cost power output adjustment are achieved.

CN110932548BActive Publication Date: 2025-04-18SHENZHEWN BAOLI MICROELECTRONICS CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN201911236242.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-12-05
Publication Date
2025-04-18
Estimated Expiration
2039-12-05

Smart Images

  • Figure CN110932548B_ABST
    Figure CN110932548B_ABST
Patent Text Reader

Abstract

A PD power supply circuit and a PD power supply device based on the PPS specification. The PPS power supply circuit converts the voltage / current adjustment instruction of the digital signal into a PWM signal of an analog signal by setting a controller other than a main control chip. The signal generating circuit set in the main control chip obtains an adjustment signal according to the relationship between the parameters of the PWM signal and the internal reference signal and the sampling signal, thereby adjusting the output of the power supply circuit, thereby achieving adjustable output voltage / output current. In this way, discrete components are used to replace DAC, which reduces the cost and the overall size of the circuit. At the same time, compared with the method of changing the output voltage adjustment resistor, the accuracy is also higher.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Intelligence frequency conversion buck converter

    CN205544936U

  • PD power supply circuit based on PPS specification and PD power supply equipment

    CN211377899U