A stabilized power supply circuit and solar charge controller
A regulated power supply circuit and circuit technology, applied in battery circuit devices, current collectors, circuit devices, etc., can solve the problem of high cost and achieve the effect of reducing circuit cost
Active Publication Date: 2022-04-01
深圳硕日新能科技股份有限公司
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Problems solved by technology
[0003] The invention provides a stabilized power supply circuit and a solar charging controller, aiming to solve the problem of high cost caused by the use of a high withstand voltage LDO chip in the stabilized voltage supply circuit in a scene with a large input voltage range in the prior art
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[0025] 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 some of the embodiments of the present invention, but not all of them. 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.
[0026] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.
[0027] It should also be understood that the terminology used ...
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The invention discloses a stabilized power supply circuit, comprising: a circuit input terminal, a circuit output terminal, a switch unit, a comparison unit and a control unit, the switch unit is connected between the circuit input terminal and the circuit output terminal; the comparison unit, the Connected to the circuit output terminal and grounded, the comparison unit is used to turn on or off the unit according to the comparison between the actual output voltage of the circuit output terminal and the preset output voltage; the control unit is connected to the switch unit, the comparison unit, and the circuit input terminal And grounded, the control unit is used to control the switch unit to turn off according to the conduction of the comparison unit, and to control the switch unit to be turned on according to the disconnection of the comparison unit. Implementing the present invention to replace a high withstand voltage LDO chip in a scene with a large input voltage range can effectively reduce circuit costs.
Description
technical field [0001] The invention relates to the technical field of charging equipment, in particular to a voltage-stabilized power supply circuit and a solar charging controller. Background technique [0002] The regulated power supply circuit is a commonly used circuit design, which can be realized by a conventional LDO chip. Although the conventional LDO chip has high voltage regulation accuracy, the input voltage range it can withstand is generally within 30V, and the range is relatively narrow. It is not applicable in certain scenarios, and the use of LDO chips with a wide input voltage range, that is, high withstand voltage LDO chips, is expensive, which will increase the cost of the application of the regulated power supply circuit. Contents of the invention [0003] The invention provides a stabilized power supply circuit and a solar charging controller, aiming to solve the problem of high cost caused by the use of a high withstand voltage LDO chip in a stabiliz...
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IPC IPC(8): G05F1/56H02J7/35
CPCG05F1/56H02J7/35
Inventor 谷朝栋彭彪梁耀辉杨桂贤
Owner 深圳硕日新能科技股份有限公司