Automatic thermal equalization control device and method for interleaved parallel circuit

A control device and thermal equalization technology, applied in the direction of output power conversion device, control/regulation system, conversion equipment with intermediate conversion to AC, etc., can solve the problems of power module life attenuation, thermal imbalance, etc., to achieve life loss Balanced, increased service life, improved thermal stress risk effects
CN112467994AActive Publication Date: 2021-03-09SHENZHEN WINLINE TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHENZHEN WINLINE TECH
Publication Date
2021-03-09

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Abstract

The invention discloses an automatic thermal equalization control device and method for an interleaved parallel circuit, and the device comprises a temperature equalization circuit and acontrol loop;the temperature equalization circuit is used for generating a temperature compensation signal based on a temperature signal corresponding to each power circuit of the interleaved parallel circuit, andthe temperature compensation signal is used for compensating the temperature difference between the power circuits; and the control loop is connected with the temperature equalization circuit and isused for generating a driving control signal based on the output sampling signal of each power supply circuit and the temperature compensation signal, and the driving control signal is used for controlling a control signal generator for controlling a switching element of each power supply circuit.
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Description

technical field

[0001] The application relates to the technical fields of high-power power supply, charging module, high-frequency digital power supply, electric power supply and vehicle-mounted power supply, in particular to an automatic thermal balance control device and method for interleaved parallel circuits. Background technique

[0002] With the full popularization of digital power supply and the maturity of power supply technology, the design of power supply products takes high efficiency, high power density and high reliability as the most important indicators. Especially in the field of electric vehicle charging, the development of core charging modules tends to have higher output power and higher power density. In the design of power supply circuits with high power output and high power density, interleaved parallel technology has been widely used.

[0003] The interleaved parallel technology can greatly reduce the single volume of magnetic devices, and the numbe...

Claims

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