Drive amplifier system and over-current detection method for...

Details Drive amplifier system and over-current detection method for... Drive amplifier system and over-current detection method for...

2008-12-15

2011-10-04

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C361S031000

Reexamination Certificate

active

08030869

ABSTRACT:
A drive amplifier system includes a drive control device, a power supply, and at least one drive amplifier. The power supply includes a power control circuit, a rectifier, and a current sensor. The power control circuit includes an over-current detection circuit, a controller, and a state comparator. The drive amplifier includes a control circuit, a state memory, and an inverting circuit. When a actual current provided for the at least one drive amplifier by the power supply is more than a reference voltage, the over-current detection circuit outputs an over-current detection signal.

REFERENCES:
patent: 6894463 (2005-05-01), Kernahan
patent: 7276815 (2007-10-01), Algrain et al.
patent: 2003/0197993 (2003-10-01), Mirowski et al.
patent: 2006/0082944 (2006-04-01), Koyanagi et al.
patent: 2010/0027170 (2010-02-01), Kishimoto

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