Motor driving device

Details Motor driving device Motor driving device

2011-03-08

2011-03-08

Ro, Bentsu (Department: 2837)

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Armature control by digital or combined analog and digital...

C388S811000, C318S400060, C318S400220, C318S471000

Reexamination Certificate

active

07903955

ABSTRACT:
A driving device is provided for controlling rotation of a motor. The driving device comprises an inputting module, a comparing module and a processing module. The inputting module includes a first current source, a first voltage source and a first capacitance. The first capacitance is coupled between the first current source and the first voltage source for charging/discharging and generating a voltage signal. The comparing module is coupled to the inputting module for comparing a selecting signal with the voltage signal and generating a comparing signal. The processing module is coupled to the comparing module and generates a control signal according to a clock signal and the comparing signal, wherein the driving device controls the rotation of the motor by the control signal.

REFERENCES:
patent: 4486692 (1984-12-01), Sonoda et al.

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