A low power consumption watchdog circuit
A technology of watchdog and low power consumption, which is applied in the field of watchdog signal trigger circuit, which can solve the problems of high power consumption, complex circuit, and power consumption, and achieve the effects of reduced power consumption, simple circuit structure, and improved stability
Active Publication Date: 2022-03-15
中山芯达电子科技有限公司
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Problems solved by technology
[0002] The traditional watchdog circuit is generally composed of crystal oscillators, timers and other components. The external power supply continuously supplies power to each component. All components of the entire watchdog circuit are running and need to consume power to varying degrees, resulting in relatively high power consumption. large, complicated circuit
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Embodiment Construction
[0037] Such as figure 1 , figure 2 As shown, a low-power watchdog circuit, including:
[0038] The charging module 1 and the energy storage module 2, the charging module 1 and the energy storage module 2 are connected to charge the energy storage module 2;
[0039] The signal trigger module 3 is connected with the energy storage module 2 to generate and output a watchdog signal when the energy storage of the energy storage module 2 reaches a threshold;
[0040] The energy release switch module 4, the energy release switch module 4 includes an input end, an output end and a control end, the input end of the energy release switch module 4 is connected to the energy storage module 2, the output end of the energy release switch module 4 is grounded, and the energy release switch module The control end of 4 is connected with the output end of the signal trigger module 3 so that the energy leakage switch module 4 is turned on according to the control.
[0041] Wherein, the energ...
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The invention discloses a low power consumption watchdog circuit, an energy charging module, an energy storage module, a signal trigger module and an energy discharge switch module; the energy charging module is connected with the energy storage module to charge the energy storage module; the signal trigger module and the energy storage module The energy module is connected to generate and output a watchdog signal when the energy stored in the energy storage module reaches a threshold value; the energy discharge switch module includes an input terminal, an output terminal and a control terminal, and the input terminal of the energy discharge switch module is connected to the energy storage module, and the energy discharge switch module is connected to the energy storage module. The output end of the switch module is grounded, and the control end of the energy release switch module is connected to the output end of the signal trigger module to conduct the energy release switch module according to the control; the circuit structure of this design is simple, and the signal trigger The module is in a static state, while the energy storage module only stores a small amount of electric energy, and the power consumption is greatly reduced. At the same time, the generated watchdog signal is used to discharge the stored electric energy, so that the entire system of this design is in a steady state, and the automatic adjustment works stably Sex is greatly improved.
Description
technical field [0001] The invention relates to the field of electronic circuits, in particular to a watchdog signal trigger circuit. Background technique [0002] The traditional watchdog circuit is generally composed of crystal oscillators, timers and other components. The external power supply continuously supplies power to each component. All components of the entire watchdog circuit are running and need to consume power to varying degrees, resulting in relatively high power consumption. Large, complex circuits. Contents of the invention [0003] In order to solve the above technical problems, the object of the present invention is to provide a watchdog circuit that is delayed through the power storage process of the energy storage module. On the basis of generating the watchdog signal according to the requirements, the power consumption is reduced, and the circuit is simple. [0004] The technical scheme adopted in the present invention is: [0005] A low-power wat...
Claims
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IPC IPC(8): G06F11/07H03K17/687H03K17/284
CPCH03K17/284H03K17/687G06F11/0757
Inventor 方镜清钟业成
Owner 中山芯达电子科技有限公司