Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Signal transmission integrity or spurious noise override
Patent
1993-03-08
1995-01-10
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Signal transmission integrity or spurious noise override
327589, 326 88, H03K 17687, H03K 1901
Patent
active
053810511
ABSTRACT:
A high voltage charge pump (65) for operation at low power supply voltages includes a plurality of series connected pump stages (66), a predriver logic circuit (68), and two pump driver circuits (70 and 72). The predriver logic circuit (68) receives an external clock signal and provides internal clock signals to the pump driver circuits (70 and 72). The pump driver circuits (70 and 72) provided boosted clock signals to the series connected pump stages (66). The boosted clock signals are provided at a voltage greater than a magnitude of a power supply voltage. By using a boosted clock signal, the charge pump (65) is capable of operating in applications with low power supply voltages, such as 3.3 volts.
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Callahan Timothy P.
Hill Daniel D.
Motorola Inc.
Tran Toan
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