CN202435266U - Multi-output, high-precision and small-signal direct current voltage circuit - Google Patents
Multi-output, high-precision and small-signal direct current voltage circuit Download PDFInfo
- Publication number
- CN202435266U CN202435266U CN2011205153274U CN201120515327U CN202435266U CN 202435266 U CN202435266 U CN 202435266U CN 2011205153274 U CN2011205153274 U CN 2011205153274U CN 201120515327 U CN201120515327 U CN 201120515327U CN 202435266 U CN202435266 U CN 202435266U
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- China
- Prior art keywords
- direct current
- variable
- current voltage
- small
- voltage circuit
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Abstract
Provided is a multi-output, high-precision and small-signal direct current voltage circuit. A direct current power output end is connected with a variable-resistor network input end. A variable-resistor network output end is connected with a selective switch input end. A load anode is connected with a selective switch output end. The other end of the direct current power is connected with a load cathode. By using small-sized and stable variable resistor and selective switch to form the direct current voltage circuit, multiple high-precision and small-signal direct current voltage with stable signals are generated simultaneously, and the generated direct current voltage is low in cost and reliable in quality. The direct current voltage circuit is made by using circuit board technology so that the direct current voltage circuit is small in size, light in weight and simple in manufacture, and is suitable for batch production.
Description
Technical field
The utility model belongs to technical field of signal generation, is specifically related to a kind of improvement of multichannel output high accuracy small-signal dc voltage circuit.
Background technology
Present duplex high precision small-signal DC power supply needs components and parts kind number various owing to complex structure, poor anti jamming capability, and debugging difficulty is big, and costs an arm and a leg, and volume is big, and complex process is difficult to realize miniaturization, therefore is necessary to improve.
The utility model content
The technical problem that the utility model solves: a kind of economy, technology is simple, volume is little multichannel output high accuracy small-signal dc voltage circuit are provided, to overcome the shortcoming of prior art.
The technical scheme that the utility model adopts: a kind of multichannel output high accuracy small-signal dc voltage circuit; Comprise DC power supply, variable-resistor network and selector switch; Said dc power output end connects the variable-resistor network input; Switch input terminal is selected in the selecting of said variable-resistor network output, and the load of said selector switch output termination is anodal, another termination load negative pole of said DC power supply.
Wherein, said variable-resistor network is made up of some parallel branches, the some variable resistors of serial connection on the said branch road, and each branch road all is connected with selector switch through lead.
The utility model compared with prior art adopts the variable resistor of the little stable performance of volume and selector switch to constitute, and produces multiple high accuracy, small-signal direct voltage simultaneously, signal stabilization; Price is low, and reliable in quality adopts the circuit board craftwork manufacture simultaneously; Volume is little; In light weight, make simply, be fit to produce in batches.
Description of drawings
Fig. 1 is the utility model theory diagram;
Fig. 2 is the utility model circuit structure diagram.
Embodiment
A kind of embodiment of the utility model is described below in conjunction with accompanying drawing 1,2.
A kind of multichannel output high accuracy small-signal dc voltage circuit; Comprise DC power supply 3, variable-resistor network 2 and selector switch 1; DC power supply 3 output termination variable-resistor networks 2 inputs; Switch 3 inputs are selected in said variable-resistor network 2 output selectings, said selector switch 1 output termination load, another termination load negative pole of said DC power supply 1.Wherein, said variable-resistor network 2 is made up of some parallel branches 5, the some variable resistors 4 of serial connection on the said branch road 5, and each branch road 5 all is connected with selector switch 1 through lead 6.Duplex high precision small-signal direct voltage is by taking out on each corresponding branch road 5 of variable-resistor network 2, and selector switch 1 is selected wherein a kind of voltage signal output in real time, and the parameter of variable resistor 4 is according to the precision and the load decision of output voltage signal on each branch road 5.
The size of variable resistor 4 and how many precision and power decisions by loading demand; Selector switch 3 adopts band switch and connects lead and constitutes; When the direct voltage of a kind of specific standard of needs; Each branch road 5 is installed several variable resistors 4 according to the load impedance coupling in the variable-resistor network 2, adjusts these several variable resistors 4 then until obtaining required direct voltage.
The foregoing description, just the preferred embodiment of the utility model is not to be used for limiting the utility model practical range, so all equivalences of being done with the said content of the utility model claim change, all should be included within the utility model claim scope.
Claims (2)
1. a multichannel is exported high accuracy small-signal dc voltage circuit; It is characterized in that: comprise DC power supply (3), variable-resistor network (2) and selector switch (1); Said DC power supply (3) output termination variable-resistor network (2) input; Switch (1) input is selected in said variable-resistor network (2) output selecting, and the load of said selector switch (1) output termination is anodal, another termination load negative pole of said DC power supply (3).
2. multichannel output high accuracy small-signal dc voltage circuit according to claim 1; It is characterized in that: said variable-resistor network (2) is made up of some parallel branches (5); Said branch road (5) is gone up serial connection some variable resistors (4), and each branch road (5) all is connected with selector switch (1) through lead (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205153274U CN202435266U (en) | 2011-12-12 | 2011-12-12 | Multi-output, high-precision and small-signal direct current voltage circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205153274U CN202435266U (en) | 2011-12-12 | 2011-12-12 | Multi-output, high-precision and small-signal direct current voltage circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202435266U true CN202435266U (en) | 2012-09-12 |
Family
ID=46784675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205153274U Expired - Fee Related CN202435266U (en) | 2011-12-12 | 2011-12-12 | Multi-output, high-precision and small-signal direct current voltage circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202435266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110262611A (en) * | 2019-07-12 | 2019-09-20 | 广东浪潮大数据研究有限公司 | It is a kind of for providing the circuit of stress test voltage |
-
2011
- 2011-12-12 CN CN2011205153274U patent/CN202435266U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110262611A (en) * | 2019-07-12 | 2019-09-20 | 广东浪潮大数据研究有限公司 | It is a kind of for providing the circuit of stress test voltage |
| CN110262611B (en) * | 2019-07-12 | 2021-10-29 | 广东浪潮大数据研究有限公司 | Circuit for providing stress test voltage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20171212 |