Self-power-off reset circuit
A reset circuit, power-off reset technology, applied in data reset devices, electrical components, electronic switches, etc., can solve problems such as poor product experience and inconvenient 360 panoramic controllers
Pending Publication Date: 2022-02-08
广州四为电子科技有限公司
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Problems solved by technology
[0003] However, when using button reset, it is necessary to open a hole on the product shell to reserve a button position, and the product should be placed within reach; when using a PMIC to manage the reset circuit, a button or another controller (such as MCU) is also required For products without a power-off switch such as the 360 panoramic controller, directly disconnecting the input power of the product to reset the entire circuit system of the product can only be achieved by unplugging the power cord. It is extremely inconvenient for the 360 panorama controller in the hidden part of the car, and the product experience is not good
Method used
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[0024] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.
[0025] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "u...
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The invention relates to a self-power-off reset circuit. The self-power-off reset circuit comprises a power supply module, a delay control module electrically connected with the power supply module and a controller electrically connected with the delay control module, the power supply module is used for providing starting voltage for a post-stage circuit, the delay control circuit is used for controlling the power supply module to be switched on or switched off, and the controller is used for outputting a corresponding power-off reset signal or a power-on signal to the delay control circuit. The power-off reset circuit is simple in structure, the system can perform power-off reset on itself without human intervention, the power-off time is controllable, the reliability of the reset function is ensured, and the actual application requirement is met.
Description
technical field [0001] The invention relates to the technical field of embedded electronic circuit design, in particular to a self-power-off reset circuit. Background technique [0002] As we all know, current electronic products are usually equipped with a reset circuit. When there is a problem with the product circuit system, or when the circuit needs to be reset under certain conditions, the product circuit can be reset to restart the product circuit. Generally, the reset circuit can use buttons, PMIC and watchdog chip to reset, and some directly disconnect and turn on the input power of the product to reset the entire circuit system of the product. [0003] However, when using button reset, it is necessary to open a hole on the product shell to reserve a button position, and the product should be placed within reach; when using a PMIC to manage the reset circuit, a button or another controller (such as MCU) is also required For products without a power-off switch such a...
Claims
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Login to View More IPC IPC(8): H03K17/22G06F1/24
CPCH03K17/223G06F1/24
Inventor 张宏亮洪大前
Owner 广州四为电子科技有限公司