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Patent Searching and Data


Title:
VOLTAGE COMPENSATION METHOD AND APPARATUS FOR STEP-DOWN CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/232831
Kind Code:
A1
Abstract:
A voltage compensation method and apparatus for a step-down circuit. Said method comprises: according to the voltage compensation expectation of a step-down circuit, determining a capacitance value of each capacitor and a resistance value of each resistor in a voltage compensation circuit; determining, according to the capacitance value of each capacitor and the resistance value of each resistor, zeros and poles of a transfer function of the voltage compensation circuit; setting each capacitor and a resistor not directly connected in series with each capacitor to have a positive temperature coefficient, and setting the resistor directly connected in series with each capacitor to have a negative temperature coefficient; and using the voltage compensation circuit to compensate for the voltage of the step-down circuit so as to output a rated voltage. The technical solution of the present invention provides an expected stable voltage compensation effect for different step-down circuits at different temperatures, reduces hardware costs, and improves temperature adaptability, compensation accuracy and output voltage stability.

Inventors:
LI YINGCHAO (CN)
LI DALI (CN)
Application Number:
CN2019/098519
Publication Date:
November 26, 2020
Filing Date:
July 31, 2019
Export Citation:
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Assignee:
INSPUR SUZHOU INTELLIGENT TECH CO LTD (CN)
International Classes:
H02M3/06
Foreign References:
CN201479001U2010-05-19
CN105429611A2016-03-23
CN205920425U2017-02-01
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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