Electricity: motive power systems – Battery-fed motor systems
Reexamination Certificate
2008-11-27
2011-11-01
Duda, Rina (Department: 2837)
Electricity: motive power systems
Battery-fed motor systems
C318S375000, C318S376000
Reexamination Certificate
active
08049442
ABSTRACT:
An electric injection molding machine includes a motor driving circuit for driving a motor, and a delivery pipe. The motor driving circuit includes a rectifier circuit, a switch control circuit, a heater, a direct current (DC) link circuit, and an inverter circuit. The switch control circuit is configured for controlling the motor to output a regenerative current generated in a deceleration period of the motor. The heater is configured for receiving the regenerative current to heat the delivery pipe via the switch control circuit. A micro control unit (MCU) outputs a heat control signal according to the voltage from the DC link circuit to turn on the switch control circuit so as control deceleration of the motor such that a regenerative current from the motor is supplied to the heater to heat the delivery pipe.
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patent: 5582756 (1996-12-01), Koyama
patent: 6333611 (2001-12-01), Shibuya et al.
patent: 6752614 (2004-06-01), Mizuno
patent: 7176648 (2007-02-01), Choi
Altis Law Group, Inc.
Duda Rina
Foxnum Technology Co., Ltd.
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