Patent
1996-11-14
1998-07-28
Sheikh, Ayaz R.
G06F 126
Patent
active
057872937
ABSTRACT:
A computer incorporates therein a control system for efficiently turning on and off a power supply on and off therein to control on-off operations of the computer. In the control system, a power detection signal is derived first based on a power selection signal generated when a power on/off key of the computer is actuated to control the on-off operations of the computer at a signal detector. And then, at a first generator, a first power control signal and a selection control signal are obtained from the derived power detection signal in response to a first mode control signal. Next, a second power control signal is derived from the power detection signal, the selection control signal and a second mode control signal at a second generator. Finally, the first and the second power control signals are logically combined at a second logic circuit to generate and provide a definitive power control signal to the power supply, thereby selectively supplying DC output voltages to designated components of the computer to control the on-off operations of the computer.
REFERENCES:
patent: 5151855 (1992-09-01), Gray et al.
patent: 5167024 (1992-11-01), Smith et al.
patent: 5446904 (1995-08-01), Belt et al.
patent: 5497772 (1996-03-01), Schulman et al.
patent: 5586334 (1996-12-01), Miyazaki et al.
Choi Chang-Hun
Ham Seong-Sik
Hong Jean-Gee
Kim Ki-Hong
Daewoo Telecom Ltd.
Myers Paul R.
Sheikh Ayaz R.
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