Capacitance control circuit and power supply system
A technology of capacitance control and charge control, which is applied in the direction of battery circuit devices, circuit devices, collectors, etc., can solve the problems of short time and processor unit not working normally, and achieve the effect of prolonging the normal working time
Inactive Publication Date: 2021-06-18
SHENZHEN WINLINE TECH
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Problems solved by technology
When the above voltage range is exceeded, the processor unit cannot work normally
In the process of the capacitor supplying power to the processor unit, the voltage of the capacitor is easy to drop out of the above voltage range, resulting in a short time for the capacitor to maintain the normal operation of the processor unit after the system is powered off.
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.
[0036] The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally als...
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The embodiment of the invention provides a capacitance control circuit and a power supply system. The capacitance control circuit comprises a super capacitor module, a charging control circuit and a voltage conversion circuit; the capacitance control circuit is used for supplying power to a processor unit; the super capacitor module comprises at least one super capacitor; the anode of a direct-current power supply is connected with the input end of the charging control circuit and the power supply end of the processor unit; the output end of the charging control circuit is connected with the anode of the super-capacitor module and the input end of the voltage conversion circuit; the output end of the voltage conversion circuit is connected with the power supply end of the processor unit; and after the direct-current power supply is powered down, the output end of the charging control circuit is disconnected with the positive electrode of the super capacitor module, and the voltage conversion circuit converts the positive electrode voltage of the super capacitor module into a power supply voltage meeting the power supply requirement of the processor unit and outputs the power supply voltage to the power supply end of the processor unit. According to the capacitance control circuit and power supply system provided by the embodiment of the invention, the normal working time of the processor unit can be prolonged after the direct-current power supply is powered down.
Description
technical field [0001] The present application relates to the technical field of processor power supply, in particular to a capacitor control circuit and a power supply system. Background technique [0002] With the rapid development of current technology, the importance of data is self-evident, and many fields are increasingly dependent on data. Today's systems such as charging piles, electric power and data centers are particularly concerned about the reliability and stability of the system. There is also a requirement for the data at the time of system failure to be saved and uploaded to the platform in a timely manner, which is useful for analyzing the situation at the time of failure and power failure. extremely important basis. [0003] In order for the controller of the system to have the function of data storage after power failure, the current general practice is to add capacitors in the controller, so that the processor unit can continue to work normally for a cer...
Claims
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Login to View More IPC IPC(8): H02J7/34H02J7/00
CPCH02J7/345H02J7/00712H02J7/007182
Inventor吴国华张金磊刘涛杜延磊朱建国刘友恒曹博浩
OwnerSHENZHEN WINLINE TECH