Switching power supply feedback power supply output short circuit protection circuit
The utility model discloses a switching power supply feedback power supply output short-circuit protection circuit. A power supply chip; the power supply chip power supply circuit is used for supplying power to the power supply chip; the output feedback unit is connected with the output end of the p...
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a switching power supply feedback power supply output short-circuit protection circuit. A power supply chip; the power supply chip power supply circuit is used for supplying power to the power supply chip; the output feedback unit is connected with the output end of the power supply chip and is used for detecting whether the current output voltage value is within a specified range or not; one end of the output short-circuit protection circuit is connected between the power supply chip and the power supply chip power supply circuit, the other end of the output short-circuit protection circuit is connected with the output feedback unit, and the output short-circuit protection circuit is used for starting protection according to feedback information of the output feedback unit, so that the risk that an output short-circuit device is damaged when the design value of the output voltage of the feedback power supply is small (smaller than 5V) is effectively reduced.
一种开关电源反馈电源输出短路保护电路，包括； |
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