发明授权
US4739228A Electric circuit for S correction of the vertical scanning ramp in a television apparatus 失效
用于电视机中垂直扫描斜坡S校正的电路

Electric circuit for S correction of the vertical scanning ramp in a
television apparatus
摘要:
A variable-gain rectifier-amplifier with regulated voltage converts the output ramp of a ramp generator with regulating resistance of ramp amplitude into a triangular wave form with adjustable linearity which a feedback circuit brings back to said regulating resistance in the form of alternating current superimposing it on the direct current regulated through said resistance. This provides an S correction of the output ramp which depends on the gain regulation voltage of the rectifier-amplifier circuit.
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