Patent ID: 6867657
Filing Date: 2005-03-15
Classification: H03K

Abstract:
1. Electrical circuit for producing a cyclic signal having: (a) a capacitor device which has a first connection and a second connection; (b) a signal node which is connected via a first switch device to the first connection and via a second switch device to the second connection and carries a first signal having a first period duration; (c) a charging and discharging device which is connected via a third switch device to the first connection and via a fourth switch device to the second connection; where the second connection is connected to a first reference potential via a fifth switch device, and the first connection is connected to the first reference potential via a sixth switch device; and a clock generation device for receiving the first signal and for generating a first switch clock, a second switch clock and the cyclic signal; where the first and second switch clocks do not overlap and are the inverse of one another; the first, third and fifth switch devices can be actuated by the first switch clock, and the second, fourth and sixth switch devices can be actuated by the second switch clock; and the first and second switch clocks and the cyclic signal have a second period duration, which is an even-numbered multiple of the first period duration.