Patent ID: 8564338

Claim:
A method for performing a reset operation in an electronic circuit of a video apparatus, comprising the steps of: replenishing a charge in a filter capacitor of a power supply to develop an output supply voltage that energizes said electronic circuit during normal operation; generating a switched, control signal that is indicative when said reset operation is required; applying said switched control signal to a reset input of said electronic circuit to perform the reset operation; selectively applying a resistor to said filter capacitor by a switching operation, in response to said switched control signal, to produce a switched, discharge current in said capacitor, said resistor having a resistance sufficiently low to reduce said output supply voltage to less than 5% of a normal operation voltage level of said output supply voltage, at an end of a two-second interval that follows the generation of said switched, control signal, such that, with a 10 times larger resistance, said output supply voltage would have been larger than the 5% level at said end of said two-second interval; and preventing the replenishment of said charge in said filter capacitor, in response to said switched control signal, prior to a time when said output supply voltage is reduced to less than 5% of said normal operation voltage level.