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US 6,275,092 B1Granted
Active damping circuit
AssigneeTexas Instruments Incorporated
InventorsKenneth J. Maggio, Patrick M. Teterud
Life of this patent
Estimating the term…
Abstract
An active damping circuit damps the ringing effect caused by a write circuit for a disk drive. The circuit includes upper switches and lower switched current sources. A capacitive feedback is connected between the output and the lower switched current sources.
Claims4
An active damping circuit, comprising:
- an H-bridge circuit having upper control circuits and lower control circuits;
- and
- a feedback circuit for providing feedback to said H-bridge circuit,
- wherein said lower control circuits include a first lower control circuit and a second lower control circuit, and said feedback circuit is connected between said first lower control circuit and said second lower control circuit.
1 more element
An active damping circuit, comprising:
- an H-bridge circuit having upper control circuits and lower control circuits;
- and
- a feedback circuit for providing feedback to said H-bridge circuit,
- wherein said feedback circuit is two capacitors connected in series with a junction between said two capacitors being biased at mid supply voltage.
1 more element
Dependencies are inferred from the claim text.