Servo device

Details Servo device Servo device

2007-04-25

2010-02-23

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

C318S599000, C318S560000, C318S400010, C318S254100

Reexamination Certificate

active

07667424

ABSTRACT:
A servo device is provided which includes a drive source made of a brushless motor. A DC motor driving integrated circuit produces output signals and controls the output of a three-phase brushless motor driving integrated circuit to drive the brush less motor. A selection switching section detects information regarding the rotational speed of the brushless motor. The selection switching section extracts the counter electromotive voltage of the brushless motor, feeds the voltage back to the DC motor driving integrated circuit and PWM controls a drive signal output from the three-phase brushless motor driving integrated circuit. This allows the brushless motor to be easily applied to the servo device.

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German communication dated Oct. 27, 2009. English language translation attached to front of document.

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