Transistor monitoring circuit and rectifying device
A technology for monitoring circuits and transistors, applied in measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of unfavorable power saving and large power consumption, and achieve the effects of saving power, reducing power consumption, and improving reliability
Pending Publication Date: 2021-11-16
GUANGDONG UNLIMITED POWER CO LTD
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- Application Information
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Problems solved by technology
However, the existing breakdown protection circuit consumes a lot of power during normal operation, which is not conducive to saving power
Method used
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[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0024] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific ...
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The invention discloses a transistor monitoring circuit. The transistor monitoring circuit comprises an energy taking module and a monitoring module; the input end of the energy taking module can be connected with a transistor; the monitoring module is connected with the output end of the energy taking module, the monitoring module can monitor whether the transistor is broken down or not, the energy taking module drives the monitoring module to operate when the transistor is switched off, and the energy taking module stops operation of the monitoring module when the transistor is switched on. Since the breakdown problem may occur only when the transistor is switched off, when the transistor is switched off, the energy taking module drives the monitoring module to operate so as to monitor whether the transistor is broken down, and when the transistor is switched on, the energy taking module stops the operation of the monitoring module so as to reduce the electric energy consumption and facilitate the saving of the electric energy.
Description
technical field [0001] The invention relates to the field of transistor detection, in particular to a transistor monitoring circuit and a rectifier. Background technique [0002] Transistors, such as diodes, often need to withstand large reverse voltages in order to achieve unidirectional conduction and rectification effects in the environment of high-voltage and high-power rectification devices. Due to device aging or excessive voltage, etc., the diode may be broken down and damaged. After the diode is broken down, it will lose its unidirectional conduction characteristics, and the current flowing through it will increase, which will also affect other components in the circuit. , leading to the problem of secondary damage. [0003] In the prior art, some circuits are provided with a breakdown protection circuit to detect whether the transistor is broken down, and then when the transistor is broken down, emergency treatment can be performed in time to avoid secondary damage...
Claims
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IPC IPC(8): G01R31/26G01R31/27H02M7/06H02M7/10
CPCG01R31/2607G01R31/27H02M7/06H02M7/066H02M7/10
Inventor 彭国平徐元龙史奔王红占姚钊袁小波
Owner GUANGDONG UNLIMITED POWER CO LTD