Charge pump with low noise and high output current and voltage

A four phase clock system for a charge pump with low noise and high output current and voltage, comprising:

• a four phase clock generator used to generate a first signals group including a first signal, a second signal, a third signal and a fourth signal, which have different phases respectively;
• and
• a plurality of delay circuits coupled to said four phase clock generator, wherein said plurality of delay circuits are serially connected to generate a plurality of signals groups;
• wherein high level of said first signal overlaps two sections of high level of said third signal to generate a first overlapping time and a second overlapping time, and said first overlapping time is not equal to said second overlapping time.

A four phase clock generator for a charge pump with low noise and high output current and voltage, comprising:

• a power supply;
• an oscillator coupled to said power supply;
• a phase generator coupled to said oscillator;
• a first delay circuit and a first inverter coupled to said phase generator;
• a second delay circuit and a second inverter coupled to said first delay circuit;
• a third delay circuit and a third inverter coupled to said second delay circuit;
• a fourth inverter coupled to said third delay circuit;
• a first logic gate circuit coupled to said second inverter and said third inverter, and generating a first signal;
• a second logic gate circuit coupled to said phase generator and said third delay circuit, and generating a second signal;
• a third logic gate circuit coupled to said first delay circuit and said second delay circuit, and generating a third signal;
• and
• a fourth logic gate circuit coupled to said first inverter and said fourth inverter, and generating a fourth signal.