Single cell BiMOS electroluminescent display driver

Details Single cell BiMOS electroluminescent display driver Single cell BiMOS electroluminescent display driver

1990-05-09

1993-03-02

Weldon, Ulysses

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

34082544, 307570, G09G 330

Patent

active

051913216

ABSTRACT:
A low power, dual mode BIMOS circuit generates a required drive voltage for illuminating an electroluminescent display panel from a low voltage, preferably a single cell. The BIMOS circuit comprises at least one bipolar transistor, at least one MOS transistor, an output voltage sensor, and a controller operating in a complementary fashion to disable a first clock signal coupled to the at least one bipolar transistor subsequent to enabling operation of the at least one MOS transistor for controlling the charging current used to generate the output voltage.

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