Power-started control device and power-started control method
A technology for power start and control device, which is applied to measurement device, data processing power supply, measurement flow/mass flow, etc. It can solve the problems of inability to know the power supply, the computer system cannot be started normally, and the good signal of the power supply cannot be directly generated.
Inactive Publication Date: 2010-02-24
ASUSTEK COMPUTER INC
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[0003] However, when the computer system uses a power converter (adapter) to provide power, the power converter only provides a fixed voltage to the computer system, so when the computer system is powered by the power converter, the power converter cannot directly generate a power good signal to the computer system, so the computer system cannot know whether the power supply is ready, and the computer system cannot be started normally
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[0013] Please also refer to Figure 1A and Figure 1B , respectively are schematic diagrams (1) and (2) of an embodiment of the power-activated control device of the present invention. The power starting control device proposed by the present invention is applied to a power converter (adapter) that can provide a fixed voltage, and the power converter can be coupled with a computer system to provide the power required by the computer system. The power-on control device 5 includes: a first voltage conversion circuit 10 , a second voltage conversion circuit 20 , a third voltage conversion circuit 30 , and a comparison module 40 . Here, the fixed voltage V provided by the power converter 1 c It can be 19 volts, but is not limited thereto.
[0014] The first voltage conversion circuit 10 is based on the fixed voltage V provided by the power converter 1 c , generating the reference voltage V ref . Depend on Figure 1B As can be seen from the illustration, the first voltage con...
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The invention relates to a power-started control device and a power-started control method, which are applied to a power supply converter. The power supply converter supplies fixed voltage. The power-started control device comprises a first voltage conversion circuit, a second voltage conversion circuit, a third voltage conversion circuit and a comparison module, wherein the first voltage conversion circuit receives the fixed voltage and generates a reference voltage; the second voltage conversion circuit receives the fixed voltage and generates multiple working voltages; the third voltage conversion circuit receives the working voltages and generates multiple preliminary voltages correspondingly according to the working voltages; and when the preliminary voltages are larger than the reference voltage, the comparison module outputs excellent signals of the power supply.
Description
technical field [0001] The present invention relates to a power start control device and method, in particular to a power start control device and method applied to a power converter providing a fixed voltage. Background technique [0002] When the computer system is first started, an appropriate DC voltage will be generated, and it takes a short period of time for the power supply to be used by the internal components or peripheral components of the computer system, thereby enabling the computer to operate normally. If, before the power supply of the computer system reaches a stable level, the power supply is supplied to the computer or the computer is tried to be turned on, it will cause the computer system to fail to operate normally due to the fact that the power supply has not yet reached the proper voltage. Therefore, in order to prevent the computer system from starting prematurely, the power supply will provide a signal to the motherboard, which is the so-called powe...
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IPC IPC(8): G06F1/26
Inventor 李升远陈荣泰
Owner ASUSTEK COMPUTER INC