Semiconductor circuit, control board, and temperature control method of semiconductor circuit
A semiconductor and circuit substrate technology, applied in temperature control, semiconductor devices, non-electric variable control, etc., can solve the problems of inability to accurately judge the junction temperature of heating devices and low temperature detection accuracy, so as to improve detection accuracy and improve reliability effect
Pending Publication Date: 2021-12-21
GUANGDONG HIIC SEMICON LTD
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Problems solved by technology
[0004] Based on this, it is necessary to solve the problem that the temperature detection accuracy in the traditional semiconductor circuit is low, and it is impossible to accurately judge the junction temperature of the heating device in the semiconductor circuit
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[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0044]It should be noted that, under the condition that there is no conflict in structure or function, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0045] In traditional se...
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Abstract
The invention relates to a semiconductor circuit, a control board and a temperature control method of the semiconductor circuit. An insulating layer is arranged on a circuit substrate, and a circuit layer is arranged on the insulating layer; a first pin assembly and a second pin assembly are electrically connected with the circuit layer; the second end of the first pin assembly and the second end of the second pin assembly are exposed out of a sealing body; the circuit layer comprises a control chip, a first temperature measurement element and a heating device; and the control chip obtains an internal temperature signal corresponding to the first temperature measurement element and an external temperature signal corresponding to a second temperature measurement element, processes the internal temperature signal and the external temperature signal, and switches a current working state into an over-temperature protection state when a processing result meets a preset over-temperature protection condition. The junction temperature condition of the heating device in the semiconductor circuit is accurately judged, the temperature detection accuracy in the semiconductor circuit is improved, the working state is switched to the over-temperature protection state in time when the temperature is abnormal, and the reliability of the semiconductor circuit is improved.
Description
technical field [0001] The invention relates to a semiconductor circuit, a control board and a temperature control method for the semiconductor circuit, belonging to the technical field of semiconductor circuit applications. Background technique [0002] A semiconductor circuit is a power drive product that combines power electronics and integrated circuit technology. The semiconductor circuit integrates the power switching device and the high-voltage driving circuit, and has built-in fault detection circuits such as overvoltage, overcurrent and overheating. On the one hand, the semiconductor circuit receives the control signal from the MCU to drive the subsequent circuit to work, and on the other hand, it sends the system status detection signal back to the MCU for processing. Compared with traditional discrete solutions, semiconductor circuits have won an increasing market due to their advantages of high integration and high reliability. They are especially suitable for f...
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IPC IPC(8): H01L23/34G05D23/20
CPCH01L23/34G05D23/20
Inventor 冯宇翔潘志坚张土明左安超
Owner GUANGDONG HIIC SEMICON LTD