High-reliability isolation drive circuit suitable for wide duty cycle for spacecrafts
A technology that isolates the drive circuit and duty cycle, which is applied to electrical components, output power conversion devices, etc., can solve problems such as MOS tube burnout and interference, reduce current stress, reduce EMC interference, and improve equipment reliability. Effect
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[0021] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0022] The invention proposes a high-reliability isolation drive circuit with a wide duty cycle to solve the high-voltage spacecraft system requirement that the MOS tube be in an out-of-control state during the abnormal power-off process and cause burnout, and the duty cycle is required to be between 0% and 98% and The serious problem of EMC interference has effectively improved the reliability of the spacecraft power control equipment.
[0023] Such as figure 1 Shown is a schematic diagram of an isolated drive circuit. It can be seen from the figure that a high-reliability isolated drive circuit suitable for a wide duty cycle for a spacecraft includes a drive generation circuit, a drive enhancement circuit, a drive isolation module, a rectifier module, and a MOS tube parallel circuit; among them, The drive generation circuit generates two puls...
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