CN202818133U - Circuit of dual-supply apparatus - Google Patents
Circuit of dual-supply apparatus Download PDFInfo
- Publication number
- CN202818133U CN202818133U CN 201220434004 CN201220434004U CN202818133U CN 202818133 U CN202818133 U CN 202818133U CN 201220434004 CN201220434004 CN 201220434004 CN 201220434004 U CN201220434004 U CN 201220434004U CN 202818133 U CN202818133 U CN 202818133U
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- circuit
- dual
- supply apparatus
- base integrated
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Abstract
The utility model relates to a circuit of a dual-supply apparatus, which mainly comprises a pulse oscillating source and a bipolarity rectification circuit. The pulse oscillating source comprises a time-base integrated circuit IC1 and an astable multivibrator connected with the time-base integrated circuit IC1, wherein the astable multivibrator comprises a resistor R1, a resistor R2 and a capacitor C3; the output terminal of the time-base integrated circuit IC1 is connected to a transformer B1 through a transistor Q1 to form the bipolarity rectification circuit; the secondary output voltage of the transformer B1 passes through a rectification and filter circuit, then two voltage signals are output, and one power source is transformed to two DC sources. The circuit of a dual-supply apparatus is mainly used for a digital circuit and the simulation circuit with an operational amplifier, the circuit of a dual-supply apparatus is advantageous in that cost is low, the circuit is simple, the failure rate is low, etc., and the circuit of a dual-supply apparatus can be widely applied for the control circuit with a low current.
Description
Technical field
The utility model relates to a kind of power circuit, particularly be a kind of Dual-power device circuit.
Background technology
Power circuit is most to adopt power supply adaptor, or the output of power transformer rectifying and voltage-stabilizing, and resistance-capacitance depressurization, again through various ways such as voltage stabilizing outputs, but they have the shortcomings such as cost height, circuit complexity.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of Dual-power device circuit is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of Dual-power device circuit, mainly formed by impulse hunting source and bipolarity rectification circuit two large divisions, described impulse hunting source is made of the astable multivibrator that resistance R 1, R2 and the capacitor C 3 of time-base integrated circuit IC1 and connection thereof forms, described bipolarity rectification circuit is connected to transformer B1 by the output of time-base integrated circuit IC1 through transistor Q1 and consists of, the secondary output voltage of transformer B1 behind over commutation and filter circuit, is exported the two-way voltage signal again.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model mainly is comprised of impulse hunting source and bipolarity rectification circuit two large divisions, one group of power conversion is become two groups of DC power supply, the analog circuit that is mainly used in digital circuit and has amplifier, have the advantages such as cost is low, circuit simple, failure rate is low, can be widely used in the control circuit of low current.
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 accompanying drawing.
As shown in Figure 1, a kind of Dual-power device circuit of the present utility model, mainly formed by impulse hunting source and bipolarity rectification circuit two large divisions, described impulse hunting source is made of the astable multivibrator that resistance R 1, R2 and the capacitor C 3 of time-base integrated circuit IC1 and connection thereof forms, and its frequency of oscillation is 1.44/[(R
1+ 2R
2) C
3.
Described bipolarity rectification circuit is connected to transformer B1 by the output of time-base integrated circuit IC1 through transistor Q1 and consists of, after the voltage signal of astable multivibrator output amplifies through transistor Q1, the secondary voltage (peak value) that obtains about 20V of transformer B1, this voltage is again after over commutation and filtering processing, can obtain two-way voltage: the one tunnel be-voltage of 5V, another road is+voltage of 5V.Electric current in load also is very high, reaches as high as tens milliamperes, can use for two or three operational amplifiers, has the advantages such as cost is low, circuit is simple, fault is low.
Above-described only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (1)
1. Dual-power device circuit, it is characterized in that: mainly formed by impulse hunting source and bipolarity rectification circuit two large divisions, described impulse hunting source is made of the astable multivibrator that resistance R 1, R2 and the capacitor C 3 of time-base integrated circuit IC1 and connection thereof forms, described bipolarity rectification circuit is connected to transformer B1 by the output of time-base integrated circuit IC1 through transistor Q1 and consists of, the secondary output voltage of transformer B1 behind over commutation and filter circuit, is exported the two-way voltage signal again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434004 CN202818133U (en) | 2012-08-29 | 2012-08-29 | Circuit of dual-supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434004 CN202818133U (en) | 2012-08-29 | 2012-08-29 | Circuit of dual-supply apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202818133U true CN202818133U (en) | 2013-03-20 |
Family
ID=47876939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220434004 Expired - Fee Related CN202818133U (en) | 2012-08-29 | 2012-08-29 | Circuit of dual-supply apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202818133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237634A (en) * | 2014-08-14 | 2014-12-24 | 国家电网公司 | Device for diagnosing and eliminating power distribution network PT ferromagnetic resonance faults |
| CN105677523A (en) * | 2016-01-07 | 2016-06-15 | 西安电力高等专科学校 | Electronic detection board card for computer |
-
2012
- 2012-08-29 CN CN 201220434004 patent/CN202818133U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237634A (en) * | 2014-08-14 | 2014-12-24 | 国家电网公司 | Device for diagnosing and eliminating power distribution network PT ferromagnetic resonance faults |
| CN105677523A (en) * | 2016-01-07 | 2016-06-15 | 西安电力高等专科学校 | Electronic detection board card for computer |
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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: 20130320 Termination date: 20130829 |