Drive system for pulse motor

Details Drive system for pulse motor Drive system for pulse motor

1980-06-11

1982-11-30

Miska, Vit W.

Horology: time measuring systems or devices

Electrical time base

Solid state oscillating circuit type

368217, 318696, G06F 104, G04C 300, G05B 1940

Patent

active

043614108

ABSTRACT:
In a circuit for driving a pulse motor of an electronic timepiece, the initial part or entirety of each drive pulse is modulated to form a group of high frequency pulses thereby reducing an initial surge of current while rotor of motor is still stationary. Modulation can be controlled according to load placed on motor to provide increased drive energy for heavy loading.

REFERENCES:
patent: 3599069 (1971-08-01), Welch
patent: 3855781 (1974-12-01), Chihara et al.
patent: 4037145 (1977-07-01), Bailey et al.
patent: 4107595 (1978-08-01), Camps
patent: 4114364 (1978-09-01), Takahashi
patent: 4129981 (1978-12-01), Nomura et al.

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