Two-in-one power supply charging circuit
The utility model discloses a two-in-one power supply charging circuit comprising a voltage stabilizing chip, the voltage stabilizing chip is electrically connected with an external charging circuit and a control circuit, and the control circuit is electrically connected with a battery through a bat...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a two-in-one power supply charging circuit comprising a voltage stabilizing chip, the voltage stabilizing chip is electrically connected with an external charging circuit and a control circuit, and the control circuit is electrically connected with a battery through a battery charging circuit; the control circuit comprises a first MOS tube, a source electrode of the first MOS tube is electrically connected with a voltage stabilizing chip and a cathode of a first diode, and a drain electrode of the source electrode of the first MOS tube is electrically connected with a source electrode of a second MOS tube; the grid electrode of the first MOS tube is electrically connected with the drain electrode of the second MOS tube and the cathode of the second diode and is grounded; the source electrode of the second MOS tube is electrically connected with the battery charging circuit; the anode of the first diode and the anode of the second diode are electrically connected with an external ch |
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