Charge pump circuit
A charging pump and circuit technology, applied in logic circuits, electrical components, static memory, etc., can solve problems such as insufficient regulators
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[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The first charge transfer MOS transistor M1 and the second charge transfer MOS transistor M2 are connected in series, and the power supply voltage VDD as an input voltage is supplied to the source of the first charge transfer MOS transistor M1.
[0012] Here, the first charge transfer MOS transistor M1 may be of the N-channel type or the P-channel type, and the second charge transfer MOS transistor M2 is preferably of the P-channel type. This is because, if the second charge transfer MOS transistor M2 is an N-channel type, a high voltage for turning it on cannot be obtained from this circuit.
[0013] A connection point between the first charge transfer MOS transistor M1 and the second charge transfer MOS transistor M2 is connected to the first terminal of the capacitor C1. The clock from the clock driver 11 is applied to the second terminal of the capacitor C1 . The cl...
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