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Driving voltage regulating circuit, driving circuit and driving method of power electronic device

A technology for driving voltage regulation and power electronic devices, applied in circuits, relays, electrical components, etc., can solve problems such as damaged electronic components, failure of power electronic products, etc., to improve reliability, avoid peak voltage high-voltage breakdown, and reduce peaks The effect of the voltage value

Pending Publication Date: 2022-05-13
CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Power electronic devices such as solid state circuit breakers and solid state relays (such as metal field effect transistors, insulated gate bipolar transistors and other transistors) are widely used in different power electronic products to realize circuit switch control between power supply and load, but power The voltage spikes generated by electronic devices during the switching process often damage the electronic components in power electronic devices and cause power electronic products to fail

Method used

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  • Driving voltage regulating circuit, driving circuit and driving method of power electronic device
  • Driving voltage regulating circuit, driving circuit and driving method of power electronic device
  • Driving voltage regulating circuit, driving circuit and driving method of power electronic device

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Embodiment Construction

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplif...

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Abstract

The invention relates to a driving voltage regulating circuit, a driving circuit and a driving method of a power electronic device. The driving voltage regulating circuit comprises a time constant regulating circuit and a pulse modulation control circuit, wherein the pulse modulation control circuit is used for outputting a pulse signal to the power supply circuit, and the pulse signal is used for driving the power supply circuit to output a driving signal to the time constant adjusting circuit; slopes of a driving signal level rising edge and a driving signal level falling edge are adjusted through a time constant adjusting circuit so as to output a driving level with a voltage value slowly changing at the driving signal level rising edge or the driving signal level falling edge, and on or off of a power electronic device is controlled through the driving level. Soft turn-on and soft turn-off are realized based on the driving voltage adjusting circuit and the driving circuit, so that a peak voltage value is effectively reduced, a power electronic device is prevented from being broken down by peak voltage high voltage, and the reliability of an electronic product is improved.

Description

technical field [0001] The present application relates to the technical field of power electronics, in particular to a driving method for driving a voltage regulation circuit, a driving circuit and a power electronic device. Background technique [0002] Power electronic devices such as solid state circuit breakers and solid state relays (such as metal field effect transistors, insulated gate bipolar transistors and other transistors) are widely used in different power electronic products to realize circuit switch control between power supply and load, but power The voltage spikes generated by electronic devices during the switching process often damage the electronic components in power electronic devices and cause power electronic products to fail. Contents of the invention [0003] Based on this, it is necessary to address the above technical problems and provide a driving voltage regulation circuit, a driving circuit, and a driving method for power electronic devices t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/54H01H47/00H01H47/32
CPCH01H9/54H01H47/00H01H47/32H01H47/001
Inventor 洪传生欧佳嵘沈超滕飞徐若良刘源
Owner CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD
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