1
David Bingham: CMOS backup power switching circuit. Intersil, Spensley Horn Jubas & Lubitz, October 14, 1986: US04617473 (116 worldwide citation)

A load circuit is provided with a backup power supply to power the essential functions of the load in the event that its primary power supply fails or is otherwise degraded. The positive terminals of both the primary power supply and the backup power supply, having a common negative reference, are i ...


2
David Bingham, Charles M Allen: Integrated dual charge pump power supply and RS-232 transmitter/receiver. Maxim Integrated Products, Blakely Sokoloff Taylor & Zafman, January 30, 1990: US04897774 (63 worldwide citation)

A monolithic integrated circuit containing an inverting/non-inverting voltage doubler charge pump circuit is disclosed for converting a unipolar supply voltage to a bipolar supply voltage of a greater magnitude. The unipolar input voltage is placed across a first external transfer capacitor by a fir ...


3
Roger W Fuller, David Bingham: Integrated dual charge pump power supply including power down feature and rs-232 transmitter/receiver. Maxim Integrated Products, Blakely Sokoloff Taylor & Zafman, January 10, 1989: US04797899 (63 worldwide citation)

A monolithic integrated circuit containing an inverting/non-inverting voltage doubler charge pump circuit is disclosed for converting a unipolar supply voltage to a bipolar supply voltage of a greater magnitude. The unipolar input voltage is placed across a first external transfer capacitor by a fir ...


4
David Bingham, Charles M Allen: Integrated dual charge pump power supply and RS-232 transmitter/receiver. Maxim Integrated Products, Lyon & Lyon, January 13, 1987: US04636930 (62 worldwide citation)

A monolithic integrated circuit containing an inverting/non-inverting voltage doubler charge pump circuit is disclosed for converting a unipolar supply voltage to a bipolar supply voltage of a greater magnitude. The unipolar input voltage is placed across a first external transfer capacitor by a fir ...


5
David Bingham, Charles M Allen: Integrated dual charge pump power supply and RS-232 transmitter/receiver. Maxim Integrated Products, Lyon & Lyon, October 11, 1988: US04777577 (52 worldwide citation)

A monolithic integrated circuit containing an inverting/non-inverting voltage doubler charge pump circuit is disclosed for converting a unipolar supply voltage to a bipolar supply voltage of a greater magnitude. The unipolar input voltage is placed across a first external transfer capacitor by a fir ...


6
David Bingham, Charles M Allen: Integrated dual charge pump power supply and RS-232 transmitter/receiver. Maxim Integrated Products, Lyon & Lyon, July 7, 1987: US04679134 (48 worldwide citation)

A monolithic integrated circuit containing an inverting/non-inverting voltage doubler charge pump circuit is disclosed for converting a unipolar supply voltage to a bipolar supply voltage of a greater magnitude. The unipolar input voltage is placed across a first external transfer capacitor by a fir ...


7
Jules C Farago, Andrew M Wolff, David Bingham: Circuit means for converting a bipolar input to a unipolar output. Intersil, Spensley Horn Jubas & Lubitz, September 25, 1984: US04473757 (36 worldwide citation)

A circuit which accepts an input signal of either positive or negative polarity and produces an output signal having an open circuit voltage similar in amplitude to the input signal amplitude but having a defined polarity. A plurality of switching elements, preferably MOS transistors, are connected ...


8
Dane R Snow, David Bingham: Pulse position modulated regulation for power supplies. Intersil, S C Corwin, B E Morris, July 28, 1987: US04683528 (34 worldwide citation)

A power supply regulator in which a control pulse is generated at a position in time which varies in accordance with the voltage or current supplied by the power supply. The control pulse can be fed back across an isolation boundary with a simple device such as a pulse transformer with little or no ...


9
Roger W Fuller, David Bingham: CMOS amplifier/driver stage with output disable feature. Maxim Integrated Products, Blakely Sokoloff Taylor & Zafman, July 11, 1989: US04847522 (33 worldwide citation)

The invention relates to an output circuit capable of producing an output signal which may be disabled, leaving the output terminal in a high impedance state capable of being driven externally to a voltage significantly outside the bounds of the output circuit power supply. The output circuit of the ...


10
David Bingham, Charles M Allen: Integrated dual charge pump power supply and RS-232 transmitter/receiver. Maxim Integrated Products, Blakely Sokoloff Taylor & Zafman, March 12, 1991: US04999761 (31 worldwide citation)

A monolithic integrated circuit containing an inverting/non-inverting voltage doubler charge pump circuit is disclosed for converting a unipolar supply voltage to a bipolar supply voltage of a greater magnitude. A dual-collector lateral junction transistor, formed during the conventional CMOS proces ...