Electricity: electrical systems and devices – Control circuits for electromagnetic devices
Reexamination Certificate
2007-04-24
2007-04-24
Jackson, Stephen W. (Department: 2836)
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
C361S152000
Reexamination Certificate
active
11190170
ABSTRACT:
An active vibration insulator includes an electromagnetic actuator, a cyclic-control-signals output device, and an electromagnetic-actuator driver. The electromagnetic-actuator driver includes an asymmetric half-bridge circuit, and an actuating-signals output device. The actuating-signal output device outputs a signal for turning on one of a high-side switch and a low-side switch of the asymmetric half-bridge circuit, and outputs a pulse-width-modulated actuating signal for actuating the other one of them by means of pulse-width modulation based on the cyclic control signals, which the cyclic-control-signals output device outputs, or outputs a pulse-width-modulated actuating signal for actuating both of them by means of pulse-width modulation when the cyclic control signals are positive. Moreover, the actuating-signal output device outputs a signal for turning off one of them, and outputs a pulse-width-modulated actuating signal for actuating the other one of them by means of pulse-width modulation when the cyclic control signals are negative.
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U.S. Appl. No. 11/317,049, filed Dec. 27, 2005, Yasuda et al.
Fushimi Takehiko
Ichikawa Hiroyuki
Aisin Seiki Kabushiki Kaisha
Jackson Stephen W.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Román Luis E.
Tokai Rubber Industries, Ltd
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