Resetting circuit and television comprising same
2011
The utility model discloses a resetting circuit which comprises a central processor, a turning-on power supply end, a standby power supply end, a powering-on time delay circuit (1), a power failure discharging circuit (2), a standby maintaining circuit (3), a turning-on power supply feedback end (D-RST) and a standby power supply feedback end (A). A resetting signal is sent out in a powering-on process and quick turning-off and turning-on processes or when an alternating-current power supply abnormally fluctuates. The utility model further discloses a television comprising the resetting circuit. Compared with the prior art, the resetting circuit solves the problem that the normal resetting can not be carried out when the television is quickly turned on and turned off or when the alternating-current power supply abnormally fluctuates, and prevents the central processor from resetting repeatedly in a standby state. Simultaneously, the resetting circuit has the advantages of simple circuit, low cost, stability and reliability.
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