A power supply circuit for an electronic device
A technology for power supply circuits and electronic devices, which is applied in the electronic field, can solve problems such as failure to meet the conditions of use, burnt electronic devices, and electronic devices that cannot be used normally, and achieve the effect of expanding the use voltage range
Active Publication Date: 2017-03-22
SHENZHEN ZHONGFUNENG ELECTRIC EQUIPMENG CO LTD
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Problems solved by technology
[0002] During the production process of some existing electronic devices, their rated voltage range is fixed, but for specific occasions, the voltage may not meet the conditions of use, resulting in the failure of the electronic device to work normally, or even burning the electronic device
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] The present invention protects a power supply circuit of an electronic device, such as figure 1 Shown is the electrical schematic diagram of the power supply circuit of the electronic device, the power supply circuit of the electronic device includes: an external voltage input module 10, a voltage regulation module 20 connected to the external voltage input module 10, a voltage regulation module connected to the voltage regulation module 20 The power st...
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The invention provides a power supply circuit for an electronic device. The power supply circuit comprises a voltage adjusting module and electricity storage equipment connected with the voltage adjusting module. The voltage adjusting module comprises a first resistor, a second resistor connected with the first resistor in series, a fixed voltage source connected with the second resistor in series, and an operational amplifier. One end of the fixed voltage source is connected with the second resistor, the other end of the fixed voltage source is grounded, one input end of the operational amplifier is connected between the first resistor and the second resistor, and the other input end of the operational amplifier is connected between the other end of the fixed voltage source and the ground connection portion. The voltage adjusting module adjusts input voltage of the electronic device to be within the rated voltage range and then outputs the input voltage to the electricity storage equipment, the use voltage range of the electronic device is widened, the electronic device can normally work within the wider voltage range, and the service life or functions of the electronic device are not damaged.
Description
technical field [0001] The invention belongs to the field of electronics, and in particular relates to a power supply circuit of an electronic device. Background technique [0002] During the production process of some existing electronic devices, their rated voltage range is fixed, but for specific occasions, the voltage may not meet the conditions of use, resulting in the failure of normal use of the electronic devices, or even burning the electronic devices. [0003] Therefore, it is necessary to design a new power supply circuit for electronic devices. Contents of the invention [0004] In view of this, the purpose of the present invention is to provide a power supply circuit that can adjust the power supply range of the electronic device without damaging the service life or function of the electronic device itself. [0005] The present invention provides a power supply circuit for electronic devices, which includes: an external voltage input module, a voltage regulat...
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IPC IPC(8): G05F1/56
CPCG05F1/56
Inventor 丁柏平丁柏栋蔡增智
Owner SHENZHEN ZHONGFUNENG ELECTRIC EQUIPMENG CO LTD