Drive and control circuit of large-power GTO
A technology of drive control circuit and logic control circuit, which is applied in the direction of electrical components, electronic switches, pulse technology, etc., can solve the problem that the logic control chip and the drive energy circuit have no reliable electrical isolation, reduce the reliability of the overall drive control, and reduce the electromagnetic field of the drive circuit. Compatibility and other issues, to achieve the effect of increasing anti-electromagnetic interference ability, reducing drive circuit failure, and strong anti-electromagnetic interference ability
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[0017] A high-power GTO drive control circuit of the present invention will be described in detail below in conjunction with the drawings and embodiments.
[0018] The present invention provides a driving control circuit of a high-power GTO, such as Figure 7 As shown, including: logic control circuit and energy output circuit. The logic control circuit includes three parts: +15V logic circuit, +5V logic circuit and -15V logic circuit. The three logic circuits complete the logic control function of the GTO drive control circuit, and transmit their respective logic control drive signals to the energy output Each energy loop of the circuit. The energy output circuit includes five parts: +15V open energy loop, +5V forward bias energy loop, -15V shut off energy loop, -5V reverse bias loop and driving main loop. Among them, the +15V turn-on energy circuit is the energy supply circuit that makes the GTO turn on, the +5V positive bias energy circuit is to effectively maintain the G...
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