An automatic thermal equalization control device and method for interleaved parallel circuits
A control device and heat equalization technology, applied in output power conversion devices, control/regulation systems, conversion equipment with intermediate conversion to AC, etc., can solve problems such as thermal imbalance, power module life attenuation, etc. Longevity, improved high temperature reliability, improved effects of thermal stress risk
Active Publication Date: 2022-03-04
SHENZHEN WINLINE TECH
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[0006] The present disclosure provides an automatic thermal balance control device and method for interleaved parallel circuits, so as to at least solve the problem in the prior art that the life of the power module is caused by the thermal imbalance of each power circuit in the interleaved parallel circuit of the power module. Rapidly Decaying Technical Issues
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[0018] It should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and embodiments.
[0019] In order to enable those skilled in the art to better understand the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only It is an embodiment of a part of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present disclosure.
[0020] It should be noted that the terms "first" a...
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The present application discloses an automatic thermal equalization control device and method for interleaved parallel circuits, the device comprising: a temperature equalization circuit for generating temperature compensation signals based on temperature signals corresponding to each power supply circuit of the interleaved parallel circuit, wherein The temperature compensation signal is used to compensate the temperature difference between each power supply circuit; and the control loop is connected to the temperature equalization circuit, and is used to generate a driving control signal based on the output sampling signal and the temperature compensation signal of each power supply circuit, and the driving control signal is used for The control signal generators that control the switching elements of the respective power circuits are controlled.
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...
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IPC IPC(8): H02M3/335H02M3/28
CPCH02M3/33569H02M3/285
Inventor李晨光张凯旋付加友张海东踪成林范桂杰朱建国
OwnerSHENZHEN WINLINE TECH