High-efficiency n-type switch tube isolation drive device and isolation drive method
A technology of isolated drive and switching tube, which is applied in the direction of electronic switches, electrical components, pulse technology, etc., can solve the problem of increasing payload and achieve the effects of improving utilization, reducing loss and improving efficiency
Active Publication Date: 2016-08-10
SHANGHAI INST OF SPACE POWER SOURCES
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Problems solved by technology
Improving the performance ratio and performance-price ratio of the power supply subsystem is of great significance to increasing the payload, improving satellite performance and efficiency, but the existing switch tube isolation drive device cannot meet the higher performance requirements
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[0031] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0032] see figure 1 , the present invention provides a high-efficiency N-type switching tube isolation driving device, including an isolation transformer T1, a first isolation diode D1, a second isolation diode D2, a third isolation diode D3, a first resistor R1, a second resistor R2, a first Three resistors R3, transistor Q1, capacitor C1. For the specific connection relationship of the above devices, please refer to figure 1 shown, and will not be described in detail below.
[0033] Wherein, the isolation transformer T1 receives the pulse width modulation signal in the PWM pulse width modulation circuit 1 and outputs a high voltage or a low voltage. The first isolation diode D1 isolates the output voltage of the same terminal of the i...
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The invention relates to a high-efficiency N type switch tube isolation driving device and an isolation driving method; an isolation transformer receives PWM (Pulse Width Modulation) signals in a PWM circuit to output high voltage or low voltage; a first isolation diode and a second isolation diode are used for respectively isolating the output voltage of the isolation transformer and then outputting a high voltage; a third isolation diode is used for isolating the output voltage of a capacitor; the leakage inductance energy of the isolation transformer is consumed by a first resistor; a second resistor is used for leaking the resistance of junction capacitance of a switch tube; a third resistor is a dynatron current-limiting resistor; after the switch tube is turned off, a dynatron is conducted by receiving first signals so as to leak the voltage of the junction capacitance of the switch tube; after the switch tube is conducted, the dynatron is turned off by receiving second signals; the capacitor provides voltage for driving the dynatron to be conducted after the switch tube is turned off. The high-efficiency N type switch tube isolation driving device disclosed by the invention is simple and reliable and is capable of driving the switch tube effectively.
Description
technical field [0001] The invention relates to a high-efficiency N-type switching tube isolation driving device and an isolation driving method, so as to reduce the loss of the N-type switching tube, further improve the efficiency of a charging and discharging circuit, and improve the utilization rate of satellite energy. Background technique [0002] Satellites place increasingly high demands on the performance, weight and volume of power subsystems. Improving the performance ratio and performance-price ratio of the power supply subsystem is of great significance to increasing the payload, improving satellite performance and efficiency, but the existing switch tube isolation drive device cannot meet the higher performance requirements. Contents of the invention [0003] The purpose of the present invention is to provide a high-efficiency N-type switch tube isolation drive device and isolation drive method, which can reduce the loss of the N-type switch tube, and then imp...
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IPC IPC(8): H03K17/687
Inventor 周明中陶建秋瞿炜烨杨肖锋费春梅钱斌
Owner SHANGHAI INST OF SPACE POWER SOURCES