Electric power conversion systems – Current conversion – With voltage multiplication means
Patent
1999-09-16
2000-11-21
Wong, Peter S.
Electric power conversion systems
Current conversion
With voltage multiplication means
363 59, H02M 700, H02M 318
Patent
active
061512303
ABSTRACT:
A system of regulation of a charge pump for providing an overvoltage greater by a predetermined amount than a supply voltage, including a constant current source connected between the supply voltage and a control terminal, an N-channel MOS transistor connected between the control terminal and the ground, the gate of which is connected to receive the overvoltage, the transistor being of such dimensions that it conducts all the current provided by the constant current source when the overvoltage is greater than a maximum allowable voltage, and circuitry for limiting the overvoltage when the voltage of the control terminal is close to the ground potential.
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Galanthay Theodore E.
Morris James H.
STMicroelectronics S.A.
Vu Bao Q.
Wong Peter S.
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