Sequential soft-start circuit for multiple circuit channels
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United States of America Patent
Stats
-
Feb 20, 2007
Grant Date -
Oct 26, 2006
app pub date -
Apr 22, 2005
filing date -
Apr 22, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A first to an n-th current sources supply a first to an n-th charging currents, respectively. A sequence control circuit allows an x-th charging current of the first to the n-th charging currents to charge a capacitor for generating an x-th soft-start signal. The variable x is an integer and satisfies an inequality of n.gtoreq.x.gtoreq.1. Before a y-th charging current is allowed to charge the capacitor for generating a y-th soft-start signal, the sequence control circuit stops charging the capacitor by the x-th charging current and discharges the capacitor toward a ground potential. The variable y is an integer different from the variable x and satisfies an inequality of n.gtoreq.y.gtoreq.1.
First Claim
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Cited Art Landscape
Patent Citation Ranking
- 18 Citation Count
- H02M Class
- 41.33 % this patent is cited more than
- 18 Age
