Low dropout regulator and power supply equipment
A low dropout linear, voltage stabilizer technology, applied in the direction of instruments, regulating electrical variables, control/regulating systems, etc., can solve the problems of high cost, complex circuit structure, difficult implementation, etc., and achieve the effect of low cost
Pending Publication Date: 2021-07-23
SHENZHEN MEGMEET DRIVE TECH
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, for the step-down conversion circuit, its circuit structure is more complicated, and it is more difficult to realize, while for the method of transformer plus rectification, the volume of the low-dropout linear regulator will be too large, and the cost is high
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0035] Please refer to figure 1 , figure 1 A schematic structural diagram of a low-dropout linear regulator provided in an embodiment of the present application. Such as figure 1 As shown, the low dropout linear regulator includes a voltage divider module 10 , a switch module 20 , a feedback module 30 and an energy storage module 40 . Wherein, the first e...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embodiment of the invention discloses a low dropout regulator and power supply equipment, the low dropout regulator comprises a voltage dividing module, a switch module, a feedback module and an energy storage module, a first end of the voltage dividing module is connected with a positive electrode of an input power supply and a first end of the switch module, a second end of the voltage division module is connected with the second end of the switch module and the first end of the feedback module, the third end of the switch module is connected with the second end of the feedback module and the first end of the energy storage module, and the second end of the energy storage module is connected with the third end of the voltage division module and the negative electrode of the input power supply; the connection point among the third end of the switch module, the second end of the feedback module and the first end of the energy storage module is a first connection point, and the switch module is used for switching the switch state based on the voltage at the two ends of the feedback module. By means of the mode, the function of the low dropout linear regulator can be achieved through a simple circuit structure, and the cost is low.
Description
technical field [0001] The application relates to the technical field of electronic circuits, in particular to a low-dropout linear voltage regulator and power supply equipment. Background technique [0002] In the power supply, the Low Dropout Regulator (LDO) is widely used in different output voltage domains due to its advantages of less external components, low output noise, small output ripple, and simple circuit structure. . [0003] In the prior art, the function of the low-dropout linear regulator is usually realized by adopting a step-down conversion circuit (Buck circuit) or by using a transformer plus rectification. However, for the step-down conversion circuit, its circuit structure is more complicated, and it is more difficult to realize, while for the method of transformer plus rectification, the volume of the low-dropout linear regulator will be too large, and the cost is high. Contents of the invention [0004] The embodiment of the present application aim...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/56
CPCG05F1/561
Inventor 兰帅刘小园廖海平黄舜
Owner SHENZHEN MEGMEET DRIVE TECH