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POWER CONVERSION DEVICE, SLOW SOFT-STARTUP CIRCUIT, AND POWER CONVERSION CHIP
POWER CONVERSION DEVICE, SLOW SOFT-STARTUP CIRCUIT, AND POWER CONVERSION CHIP
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机译:电源转换设备,缓慢的软启动电路和电源转换芯片
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摘要
The invention provides a power conversion device, including: a voltage conversion stage, including a primary side for receiving a rectified voltage and a secondary side for generating a rectified voltage according to the rectified voltage, wherein the primary side includes a primary side switch; a switch control circuit having a startup status and a normal operation status, the switch control circuit being configured to operably provide a control signal to a control terminal of the primary side switch; a startup circuit, providing a current to the control terminal when the switch control circuit is in the startup status, to at least partially conduct the primary side switch; and a slow soft-startup circuit, wherein when the switch control circuit is in the startup status and the output voltage does not reach a predetermined voltage in a first predetermined time period, the slow soft-startup circuit reduces a total current quantity supplied to the control terminal in a second predetermined time period which is after the first predetermined time period.
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