CN203287804U - Voltage-stabilized power supply - Google Patents
Voltage-stabilized power supply Download PDFInfo
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- CN203287804U CN203287804U CN201320355289XU CN201320355289U CN203287804U CN 203287804 U CN203287804 U CN 203287804U CN 201320355289X U CN201320355289X U CN 201320355289XU CN 201320355289 U CN201320355289 U CN 201320355289U CN 203287804 U CN203287804 U CN 203287804U
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- resistance
- triode
- operational amplifier
- emitter
- audion
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Abstract
The utility model discloses a voltage-stabilized power supply which mainly solves the problems that an anti-interference power supply in the prior art is complicated in structure and high in cost. The voltage-stabilized power supply is characterized by comprising an audion Q1, an audion Q2, a resistor R2, a resistor R1, a slide rheostat R4, a resistor R6, a detector circuit and a lowpass filtering circuit, wherein a collector of the audion Q2 is connected with a base electrode of the audion Q1, the resistor R2 is connected between an emitter of the audion Q1 and an emitter of the audion Q2, the resistor R1 is connected between a collector of the audion Q1 and the collector of the audion Q2, the sliding end of the slide rheostat R4 is connected with a base electrode of the audion Q2, the resistor R6 is connected between the emitter of the audion Q1 and the emitter of the audion Q2, the detector circuit is connected with the resistor R6, and the lowpass filtering circuit is connected with the detector circuit. According to the technical scheme, the voltage-stabilized power supply achieves the aims of being good in anti-interference capacity, low in cost and small in size, and has high practical value and popularization value.
Description
Technical field
The utility model relates to a kind of power supply, specifically, relates to a kind of stabilized voltage supply.
Background technology
Power supply is the indispensable devices of most of electrical equipments, in order to make each electrical equipment can normally move the stability that need to guarantee as much as possible Power supply, thereby need to use a lot of anti-interference equipments, can cause like this power volume larger, cost is higher, is unfavorable for some mini-plant uses cheaply.
The utility model content
The purpose of this utility model is to provide a kind of stabilized voltage supply, mainly solves the high precision anti-jamming power-supply complex structure that exists in prior art, the problem that cost is higher.
To achieve these goals, the technical solution adopted in the utility model is as follows:
stabilized voltage supply, comprise triode Q1, the triode Q2 that collector is connected with the base stage of triode Q1, be connected in the resistance R 2 between the emitter of the emitter of triode Q1 and triode Q2, be connected in the resistance R 1 between the collector of the collector of triode Q1 and triode Q2, the slide rheostat R4 that sliding end is connected with the base stage of triode Q2, one end is connected in one of them stiff end of slide rheostat R4, the other end is connected in the resistance R 3 of the emitter of triode Q1, one end is connected in another stiff end of slide rheostat R4, the other end is connected in the resistance R 5 of the emitter of triode Q2, be connected in the resistance R 6 between the emitter of the emitter of triode Q1 and triode Q2, the detecting circuit that is connected with resistance R 6, the low-pass filter circuit that is connected with detecting circuit.
Specifically, described detecting circuit comprises that output terminal passes through the operational amplifier T1 that diode D2 is connected with an end of resistance R 6, inverting input is connected with the other end of resistance R 6 by resistance R 7, be connected in the output terminal of operational amplifier T1 and the diode D1 between inverting input, the in-phase input end ground connection of described operational amplifier T1, described low-pass filter circuit is connected with the inverting input of operational amplifier T1.
further, described low-pass filter circuit comprises the resistance R 9 that inverting input passes through to be connected successively, the operational amplifier T2 that resistance R 8 is connected with the inverting input of operational amplifier T1, the resistance R 11 of inverting input by being connected successively, the operational amplifier T3 that resistance R 10 is connected with the output terminal of operational amplifier T2, one end is connected between resistance R 8 and resistance R 9, the other end is connected in the capacitor C 1 of the output terminal of operational amplifier T2, one end is connected between resistance R 10 and resistance R 11, the other end is connected in the capacitor C 2 of the output terminal of operational amplifier T3, the inverting input of described operational amplifier T2 and operational amplifier T3 is connected with respectively a direct earth capacitance.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model is designed to one with low-pass filter circuit, power circuit, detecting circuit, and according to actual conditions, has selected the components and parts that cost is minimum, effect is best to carry out circuit design, accords with the demands of the market.
(2) adopt dual low-pass filter circuit in the utility model, greatly improved the antijamming capability of power circuit, improved the stability of supply voltage.
(3) the utility model is simple in structure, uses less components and parts to realize anti-interference function, and with low cost, volume is small and exquisite, is fit to large-scale promotion application.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, and embodiment of the present utility model includes but not limited to the following example.
Embodiment
as shown in Figure 1, the utility model discloses a kind of stabilized voltage supply, comprise triode Q1, the triode Q2 that collector is connected with the base stage of triode Q1, be connected in the resistance R 2 between the emitter of the emitter of triode Q1 and triode Q2, be connected in the resistance R 1 between the collector of the collector of triode Q1 and triode Q2, the slide rheostat R4 that sliding end is connected with the base stage of triode Q2, one end is connected in one of them stiff end of slide rheostat R4, the other end is connected in the resistance R 3 of the emitter of triode Q1, one end is connected in another stiff end of slide rheostat R4, the other end is connected in the resistance R 5 of the emitter of triode Q2, be connected in the resistance R 6 between the emitter of the emitter of triode Q1 and triode Q2, the detecting circuit that is connected with resistance R 6, the low-pass filter circuit that is connected with detecting circuit.
Specifically, described detecting circuit comprises that output terminal passes through the operational amplifier T1 that diode D2 is connected with an end of resistance R 6, inverting input is connected with the other end of resistance R 6 by resistance R 7, be connected in the output terminal of operational amplifier T1 and the diode D1 between inverting input, the in-phase input end ground connection of described operational amplifier T1, described low-pass filter circuit is connected with the inverting input of operational amplifier T1.
further, described low-pass filter circuit comprises the resistance R 9 that inverting input passes through to be connected successively, the operational amplifier T2 that resistance R 8 is connected with the inverting input of operational amplifier T1, the resistance R 11 of inverting input by being connected successively, the operational amplifier T3 that resistance R 10 is connected with the output terminal of operational amplifier T2, one end is connected between resistance R 8 and resistance R 9, the other end is connected in the capacitor C 1 of the output terminal of operational amplifier T2, one end is connected between resistance R 10 and resistance R 11, the other end is connected in the capacitor C 2 of the output terminal of operational amplifier T3, the inverting input of described operational amplifier T2 and operational amplifier T3 is connected with respectively a direct earth capacitance.
On the basis of foregoing circuit, the present embodiment also is connected with part auxiliary element and line, is used for guaranteeing the normal operation of circuit, and the use of these auxiliary elements and line belongs to the circuit application custom of industry universal, does not repeat them here.
, according to above-described embodiment, just can realize well the utility model.
Claims (3)
1. stabilized voltage supply, it is characterized in that, comprise triode Q1, the triode Q2 that collector is connected with the base stage of triode Q1, be connected in the resistance R 2 between the emitter of the emitter of triode Q1 and triode Q2, be connected in the resistance R 1 between the collector of the collector of triode Q1 and triode Q2, the slide rheostat R4 that sliding end is connected with the base stage of triode Q2, one end is connected in one of them stiff end of slide rheostat R4, the other end is connected in the resistance R 3 of the emitter of triode Q1, one end is connected in another stiff end of slide rheostat R4, the other end is connected in the resistance R 5 of the emitter of triode Q2, be connected in the resistance R 6 between the emitter of the emitter of triode Q1 and triode Q2, the detecting circuit that is connected with resistance R 6, the low-pass filter circuit that is connected with detecting circuit.
2. stabilized voltage supply according to claim 1, it is characterized in that, described detecting circuit comprises that output terminal passes through the operational amplifier T1 that diode D2 is connected with an end of resistance R 6, inverting input is connected with the other end of resistance R 6 by resistance R 7, be connected in the output terminal of operational amplifier T1 and the diode D1 between inverting input, the in-phase input end ground connection of described operational amplifier T1, described low-pass filter circuit is connected with the inverting input of operational amplifier T1.
3. stabilized voltage supply according to claim 2, it is characterized in that, described low-pass filter circuit comprises the resistance R 9 that inverting input passes through to be connected successively, the operational amplifier T2 that resistance R 8 is connected with the inverting input of operational amplifier T1, the resistance R 11 of inverting input by being connected successively, the operational amplifier T3 that resistance R 10 is connected with the output terminal of operational amplifier T2, one end is connected between resistance R 8 and resistance R 9, the other end is connected in the capacitor C 1 of the output terminal of operational amplifier T2, one end is connected between resistance R 10 and resistance R 11, the other end is connected in the capacitor C 2 of the output terminal of operational amplifier T3, the inverting input of described operational amplifier T2 and operational amplifier T3 is connected with respectively a direct earth capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320355289XU CN203287804U (en) | 2013-06-20 | 2013-06-20 | Voltage-stabilized power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320355289XU CN203287804U (en) | 2013-06-20 | 2013-06-20 | Voltage-stabilized power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203287804U true CN203287804U (en) | 2013-11-13 |
Family
ID=49544160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320355289XU Expired - Lifetime CN203287804U (en) | 2013-06-20 | 2013-06-20 | Voltage-stabilized power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203287804U (en) |
-
2013
- 2013-06-20 CN CN201320355289XU patent/CN203287804U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU BOST INFORMATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHENGDU BOOST TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610000, Sichuan, Chengdu province Wuhou District Wu Qing Road (Wuhou hi tech Innovation Center incubator) Patentee after: CHENGDU BOOST INFORMATION TECHNOLOGY Co.,Ltd. Address before: 610000, Sichuan, Chengdu province Wuhou District Wu Qing Road (Wuhou hi tech Innovation Center incubator) Patentee before: CHENGDU BOOST TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |