CN203191862U - Low power consumption voltage stabilizer - Google Patents
Low power consumption voltage stabilizer Download PDFInfo
- Publication number
- CN203191862U CN203191862U CN 201320182501 CN201320182501U CN203191862U CN 203191862 U CN203191862 U CN 203191862U CN 201320182501 CN201320182501 CN 201320182501 CN 201320182501 U CN201320182501 U CN 201320182501U CN 203191862 U CN203191862 U CN 203191862U
- Authority
- CN
- China
- Prior art keywords
- voltage
- resistance
- triode
- voltage comparator
- potentiometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a low power consumption voltage stabilizer. The low power consumption voltage stabilizer comprises a voltage comparator, a potentiometer, a capacitor, a first resistor, a second resistor, a third resistor, a first transistor and a second transistor. Due to the fact that a trigger circuit works on a direct current circuit, a positive pole and a negative pole of the voltage comparator send out a positive pulse and a negative pulse respectively to trigger the first transistor and the second transistor and reduce a resistance value of the potentiometer, so that the charging speed of the capacitor is increased, the time for voltage of the two ends of the capacitor to reach turning conduction voltage of the voltage comparator is shortened, output voltage is reduced, when a voltage signal is input, the first transistor becomes to be in a saturation state, the second transistor becomes to be in a cut-off state, and then a signal output by the voltage comparator is regulated by the potentiometer and then can output voltage being close to 500mV. The lower consumption voltage stabilizer is suitable for some products of low voltage, has ultra-low voltage output, and is low in temperature, small in energy consumption, simple in structure, low in cost, easy to produce and manufacture, and convenient to popularize.
Description
Technical field
The utility model relates to a kind of Voltagre regulator, relates in particular to a kind of LDO Regulator.
Background technology
In many circuit, all need to install voltage stabilizer, but existing voltage stabilizer is exported than higher mostly, and temperature is also than higher, and power consumption is big, often uses some baroque circuit in the electronic circuit of low-voltage once, the cost height is made relatively difficulty, and fragile.
Summary of the invention
The purpose of this utility model provides a kind of LDO Regulator with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises voltage comparator, potentiometer, electric capacity, first resistance to the, three resistance, first triode and second triode, the emitter while of described second triode and first end of described the 3rd resistance, the negative power supply input end of described voltage comparator and first end of described electric capacity are connected, second end of described the 3rd resistance is connected with the negative signal input end of described voltage comparator and first end of described potentiometer simultaneously, the signal output part while of described voltage comparator and second end of described electric capacity, the sliding end of described potentiometer, second end of described potentiometer is connected with second end of described second resistance, first end while and first end of described second resistance and the cathode power supply input end of described voltage comparator of described first resistance, second end while of described first resistance and the collector of described first triode, the base stage of described first triode is connected with the base stage of described second triode, and the emitter of described first triode is connected with the collector of described second triode and the positive signal input end of described voltage comparator simultaneously.
The beneficial effects of the utility model are:
The utility model is applicable to the product of some low-voltages, has ultralow voltage output, and temperature is low, and it is little, simple in structure, with low cost to consume energy, and manufactures simply, is convenient to promote.
Description of drawings
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1: the utility model comprises voltage comparator ic, potentiometer W, capacitor C, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the first triode VT1 and the second triode VT2, the emitter while of the second triode VT2 and first end of the 3rd resistance R 3, the negative power supply input end of voltage comparator ic and first end of capacitor C are connected, second end of the 3rd resistance R 3 is connected with the negative signal input end of voltage comparator ic and first end of potentiometer W simultaneously, the signal output part while of voltage comparator ic and second end of capacitor C, the sliding end of potentiometer W, second end of potentiometer W is connected with second end of second resistance R 2, first end while and first end of second resistance R 2 and the cathode power supply input end of voltage comparator ic of first resistance R 1, second end while of first resistance R 1 and the collector of the first triode VT1, the base stage of the first triode VT1 is connected with the base stage of the second triode VT2, and the emitter of the first triode VT1 is connected with the collector of the second triode VT2 and the positive signal input end of voltage comparator ic simultaneously.
Claims (1)
1. low power consumption voltage voltage stabilizer, it is characterized in that: comprise voltage comparator, potentiometer, electric capacity, first resistance to the, three resistance, first triode and second triode, the emitter while of described second triode and first end of described the 3rd resistance, the negative power supply input end of described voltage comparator and first end of described electric capacity are connected, second end of described the 3rd resistance is connected with the negative signal input end of described voltage comparator and first end of described potentiometer simultaneously, the signal output part while of described voltage comparator and second end of described electric capacity, the sliding end of described potentiometer, second end of described potentiometer is connected with second end of described second resistance, first end while and first end of described second resistance and the cathode power supply input end of described voltage comparator of described first resistance, second end while of described first resistance and the collector of described first triode, the base stage of described first triode is connected with the base stage of described second triode, and the emitter of described first triode is connected with the collector of described second triode and the positive signal input end of described voltage comparator simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182501 CN203191862U (en) | 2013-04-12 | 2013-04-12 | Low power consumption voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320182501 CN203191862U (en) | 2013-04-12 | 2013-04-12 | Low power consumption voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191862U true CN203191862U (en) | 2013-09-11 |
Family
ID=49108710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320182501 Expired - Fee Related CN203191862U (en) | 2013-04-12 | 2013-04-12 | Low power consumption voltage stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203191862U (en) |
-
2013
- 2013-04-12 CN CN 201320182501 patent/CN203191862U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20140412 |