Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Patent
1998-07-14
2000-09-05
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
327112, H03B 100
Patent
active
061148830
ABSTRACT:
A circuit includes a first control unit which controls a first semiconductor switch connecting an output of the circuit to a first supply voltage terminal and a second control unit which controls a second semiconductor switch connecting the output of the circuit to a second supply voltage terminal. A single operating voltage source supplies a voltage to the first control unit, whereas a rechargeable energy storage device supplies a voltage to the second control unit. One terminal of the operating voltage source is connected to the first supply voltage terminal and one terminal of the energy storage device is connected to the output of the circuit. The first control unit and the second control unit are connected with each other via a switching device which is switched by the first control unit and which transmits, preferably when the first semiconductor switch is closed and the second semiconductor switch is open, a current for charging the energy storage device and for transmitting control information from the first control unit to the second control unit.
REFERENCES:
patent: 5543740 (1996-08-01), Wong
patent: 5719521 (1998-02-01), Wong
patent: 5742196 (1998-04-01), Fronen et al.
patent: 5754065 (1998-05-01), Wong
patent: 5796277 (1998-08-01), Kim et al.
Callahan Timothy P.
Dialog Semiconductor GmbH
Feiereisen Henry M.
Nguyen Hai L.
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