| US 7,463,090 B2 | ||
| Driving device | ||
| Toshio Kaiho, Tokyo (Japan); and Junichi Machida, Tokyo (Japan) | ||
| Assigned to Asahi Kasei EMD Corporation, Tokyo (Japan) | ||
| Filed on May 15, 2007, as Appl. No. 11/798,592. | ||
| Claims priority of application No. 2006-135596 (JP), filed on May 15, 2006; and application No. 2007-042485 (JP), filed on Feb. 22, 2007. | ||
| Prior Publication US 2007/0273437 A1, Nov. 29, 2007 | ||
| Int. Cl. H03F 3/38 (2006.01) | ||
| U.S. Cl. 330—10 [330/251] | 6 Claims |
| 1. A driving device for controlling electric power to load based on switching elements, the device comprising:
a driving means having a switching circuit including a plurality of switching elements connected to the load;
a first feedback means for feeding back an output signal at an output terminal of the load to an input terminal to which an
input signal is inputted;
an error suppression means, connected to the input terminal, for comparing the output signal fed back via the first feedback
means with the input signal to detect an error between signals, and producing an error suppression signal that the error is
corrected;
a control means for controlling switching of operation of the plurality of the switching elements in the driving means based
on the error suppression signal; and
a second feedback means for detecting a inclination component of a signal outputted from the error suppression means, and
feeding back the inclination component to an input terminal of the error suppression means,
wherein the error suppression means compares the input signal with a combination signal that the inclination component fed
back via the second feedback means is added to the output signal fed back via the first feedback means to detect an error
between signals, and produces an error suppression signal in which the error is corrected.
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