Light emitting indicating circuit for a timepiece

Details Light emitting indicating circuit for a timepiece Light emitting indicating circuit for a timepiece

1976-11-11

1978-10-10

Hohauser, Herman J.

Electricity: motive power systems

Reciprocating or oscillating motor

Energizing winding circuit control

58 23R, 58 855, G04C 300

Patent

active

041198921

ABSTRACT:
A light emitting indicating circuit comprises a first and second inverter circuit which are each comprised of a pair of complementary transistors connected in series. A motor driving coil and a capacitor are connected in series between respective outputs of the inverter circuits, and the inverter circuits are effective for applying repetitive complementary electrical driving signals for repetitively flowing a current in alternating directions through the series combination of motor driving coil and capacitor to repetitively energize the motor driving coil. An indicating circuit responsive to the electrical driving signals indicates energization of the motor driving coil. The indicating circuit is comprised of a light emitting diode connected in parallel with the motor driving coil for emitting light to indicate energization of the motor driving coil.

REFERENCES:
patent: 3712045 (1973-01-01), Ito
patent: 3841087 (1974-10-01), Kikuchi

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