Structure for automatically regulating power consumption according to load condition
A technology for automatic adjustment and load conditions, applied in the direction of electrical components, pulse technology, electronic switches, etc., can solve problems such as increasing the complexity of product design
Active Publication Date: 2014-05-07
杭州思泰微电子有限公司
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Problems solved by technology
In the prior art, digital methods are used to adjust power consumption, but in some analog portable products, digital methods will increase the complexity of product design
Method used
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[0012] See figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , which includes a resistive load circuit module 1, a resistive load detection circuit 2, an output current detection circuit 3, and an integrator 4. The integrator 4 includes a comparator and a capacitor. The negative input of the integrator is connected with a DC voltage, and the resistive load detection circuit 2 includes Current source, NMOS switch, the two ends of the NMOS switch are respectively connected to the input terminal of the resistive load circuit module and the output terminal of the current source through wires, the driving circuit is composed of a PMOS tube and an NMOS tube in series, and the drains of the PMOS tube are respectively connected to the NMOS tube through a wire The drain of the resistance load circuit module is connected to the positive input of the comparator after the resistance load circuit module is connected to the resistor R1. The output current detection circuit 3 includ...
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The invention provides a structure for automatically regulating power consumption according to the load condition. The structure is an artificial circuit regulating structure and is simple and effective in design. A system is powered off and powered on automatically according to the resistance load condition. According to the technical scheme, the structure comprises a resistance load circuit module and is characterized by also comprising a resistance load detection circuit, an output current detection circuit and an integrator, wherein the integrator comprises a comparer and a capacitor, the negative input of the integrator is connected with a DC voltage, the resistance load detection circuit comprises a current source and an NMOS (N-channel Mental Oxide Semiconductor) switch, two ends of the NMOS switch are respectively connected with the input end of the resistance load circuit module and the output end of a current source through leads, the drive circuit consists of a PMOS (P-channel Mental Oxide Semiconductor) transistor and an NMOS transistor which are serially connected, the drain electrode of the PMOS transistor is respectively connected with the drain electrode of the NMOS transistor and the access end of the resistance load circuit module through leads, and the access end of the resistance load circuit module is connected with a resistor R1 and then is connected with the positive input of the comparer.
Description
technical field [0001] The invention relates to the technical field of automatic adjustment of power consumption of portable products, in particular to a structure for automatically adjusting power consumption according to load conditions. Background technique [0002] As the application of portable products becomes more and more extensive, the requirements for power consumption of portable products are also getting higher and higher. In the prior art, a digital method is used to adjust the power consumption, but in some analog portable products, the digital method will increase the complexity of product design. Contents of the invention [0003] In view of the above problems, the present invention provides a structure for automatically adjusting power consumption according to load conditions, which is an analog circuit adjustment structure, and the product design is simple and effective, and can automatically power off and power on the system according to the resistan...
Claims
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IPC IPC(8): H03K17/687
Inventor 马辉蒋赛尖郑可为
Owner 杭州思泰微电子有限公司