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Driving circuit of voltage type gate control device

A driving circuit, voltage type technology, applied in the field of power electronics, can solve the problems of poor working reliability and imperfect protection function, and achieve the effect of improving integration and satisfying high power

Inactive Publication Date: 2014-09-10
BEIJING BBEF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a driving circuit for a voltage-type gate-controlled device, so as to solve the problem in the prior art that the protection function of the drive circuit for a voltage-type gate-controlled device is not perfect, resulting in poor operating reliability.

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  • Driving circuit of voltage type gate control device
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  • Driving circuit of voltage type gate control device

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments in the present application 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.

[0030] An embodiment of the present invention provides a driving circuit for a voltage-type gate-controlled device, Figure 4 is a schematic diagram of a driving circuit of a voltage-type gate-controlled device according to an embodiment of the present invention, such as Figure 4 As shown, the driving circuit of the voltage-type gate control device includes: a sensor interface 11 , a pulse signal interface 12 , a digital protection circuit 13 , and an integrated driving core 14 .

[0031] The sensor interface 11 is used to collect the working signal of the power device. The power device refers to the voltage-type gate control device driven by the drive circuit. The above-mentioned working sig...

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Abstract

The invention provides a driving circuit of a voltage type gate control device. The driving circuit of the voltage type gate control device comprises a sensor interface used for acquiring a work signal of the voltage type gate control device, a pulse signal interface used for receiving a unipolar pulse signal generated by an external control circuit, a digital protection circuit respectively connected with the sensor interface and the pulse signal interface and used for generating a driving signal according to the work signal and the unipolar pulse signal, and an integrated driving core connected with the digital protection circuit and used for converting the driving signal into a control signal of the voltage type gate control device. According to the technical scheme of the invention, the control signal sent by the driving circuit can ensure the work reliability of a power device, and the high-power, high-frequency and high-reliability requirements of the power device are satisfied.

Description

technical field [0001] The invention relates to the field of power electronics, in particular to a driving circuit of a voltage-type gate control device. Background technique [0002] Power semiconductor technology is the foundation and core of power electronics technology. With the development of microelectronics technology, MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor, metal oxide transistor) and IGBT (InsulatedGate Bipolar Transistor, insulated gate bipolar Transistor) and other voltage-type gate-controlled devices are widely used due to their superior performance and convenient control, especially in various power sources, switching power supplies, induction heating, inverter welding machines, frequency converters, and automotive electronics. role. [0003] The continuous development of power devices has led to the continuous development of its drive circuits. figure 1 A circuit diagram showing the construction of an IGBT driver using discrete devices in t...

Claims

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Application Information

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IPC IPC(8): H03K17/567
Inventor 谭啸彭茜单洪刚王磊谢家祥刘华
Owner BEIJING BBEF SCI & TECH
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