Voltage stabilizing circuit
A voltage stabilizing circuit and voltage technology, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc.
Active Publication Date: 2010-09-08
PROLIFIC TECH INC
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[0004] The purpose of the present invention is to overcome the defects of the existing voltage stabilizing circuit and provide a voltage stabilizing circuit with a novel structure. The power consumption mode (suspend mode) and the standby mode (standby mode) can be switched according to various states to provide corresponding current driving capabilities. When in high operation mode, the voltage regulator circuit can supply a large current. Low power consumption mode, the voltage regulator circuit consumes less power, and when in standby mode, the voltage regulator circuit only consumes less power, very suitable for practical use
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[0044] In order to further explain the technical means and effects that the present invention takes to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and effects of the voltage stabilizing circuit proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , as detailed below.
[0045] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of the specific implementation mode, a more in-depth and specific understanding of the technical means and effects adopted by the present invention to achieve the intended purpose can be obtained. However, the accompanying drawings are only for reference and description, and are not used to explain the present invention. ...
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The invention relates to a voltage stabilizing circuit which comprises a comparator, a first voltage output unit, a second voltage output unit, a third voltage output unit, a first switch and a second switch. The voltage stabilizing circuit receives reference voltage generated by a working voltage and reference voltage generator and outputs corresponding output voltage. The voltage stabilizing circuit of the invention can provide a high operation mode, a low-consumption power mode and a standby mode, and the modes can be switched aiming at various states to provide corresponding current drive capability. In the high operation mode, the voltage stabilizing circuit can supply larger current; in the low-consumption power mode, the voltage stabilizing circuit consumes lower power; and in the standby mode, the voltage stabilizing circuit only consumes less power.
Description
technical field [0001] The invention relates to a voltage stabilizing circuit, in particular to a voltage stabilizing circuit with power saving function and multiple switching modes. Background technique [0002] In today's consumer electronics products, power consumption is one of the important design considerations. For example, in handheld products, the power usage limit of each circuit in the product is usually regulated, such as turning on the power of each circuit when it needs to operate, and Turn off its power supply when it is not required to operate, so a voltage stabilizing circuit is required to complete the power switch function during design. However, when designing a voltage stabilizing circuit based on the need for circuit stability, most of the stabilizing circuits have only one mode. In addition, since the maximum load current is proportional to the current consumption of the stabilizing circuit, when designing a stabilizing circuit, often the voltage stabi...
Claims
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Inventor 郭国仁洪裕隆张刚硕
Owner PROLIFIC TECH INC