Control circuit and operating system
A technology for controlling circuits and operating voltages, applied in program control devices, electrical components, data processing power supplies, etc., can solve the problems of electronic components malfunctioning, damage to electronic components, etc., and achieve the effect of avoiding malfunctions
Pending Publication Date: 2022-07-01
NUVOTON
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- Application Information
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Problems solved by technology
Before the operating voltage reaches a stable voltage, if the electronic components operate according to the operating voltage, it may cause electronic components to malfunction
In addition, when multiple operating voltages are increased at the same time, inrush current may be caused, thus damaging electronic components
Method used
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Embodiment Construction
[0042] In order to make the objects, features and advantages of the present invention more obvious and easy to understand, the following specific embodiments are given and described in detail in conjunction with the accompanying drawings. The present specification provides different embodiments to illustrate the technical features of different embodiments of the present invention. The configuration of each element in the embodiments is for illustration, not for limiting the present invention. In addition, parts of the reference numerals in the drawings in the embodiments are repeated for the purpose of simplifying the description, and do not mean the correlation between different embodiments.
[0043] figure 1 It is a schematic diagram of the operating system of the present invention. like figure 1 As shown, the operating system 100 includes a control circuit 110 and a micro-control circuit 120 . The control circuit 110 determines whether a wake-up event occurs. In this e...
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The invention discloses a control circuit and an operating system, and the control circuit comprises a timing circuit and a voltage monitoring module. When a wake-up event occurs, the timing circuit enables a trigger signal at regular intervals. The voltage monitoring module is used for monitoring whether an operation voltage reaches an expected voltage. The voltage monitoring module comprises a signal generation circuit, a first delay circuit, a second delay circuit and a judgment circuit. The signal generating circuit generates a reference signal according to the trigger signal. The first delay circuit receives the operating voltage and delays the reference signal to generate a first delay signal. The second delay circuit delays the trigger signal to generate a second delay signal. When the wake-up event occurs, the judgment circuit enables a wake-up signal according to the reference signal, the first delay signal and the second delay signal.
Description
technical field [0001] The present invention relates to a control circuit, and more particularly, to a control circuit that monitors whether an operating voltage reaches a desired voltage. Background technique [0002] With the advancement of technology, there are more and more types and functions of electronic products. Electronic products have many electronic components inside. In order to reduce the power consumption caused by the electronic components, when the electronic components are not used for a long time, the electronic components enter a power saving mode. In the power saving mode, the operating voltage of the electronic components may be a standby voltage, such as 0V. When a wake-up event occurs, the operating voltage gradually increases from the standby voltage. Before the operating voltage reaches a stable voltage, if the electronic components operate according to the operating voltage, the electronic components may malfunction. In addition, when multiple ...
Claims
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Login to View More IPC IPC(8): G06F9/4401G06F1/30H03K5/133
CPCG06F9/4418G06F1/30H03K5/133
Inventor 张恒恺黄启睿
Owner NUVOTON