CN2146028Y - Dual-circuit d.c power source - Google Patents
Dual-circuit d.c power source Download PDFInfo
- Publication number
- CN2146028Y CN2146028Y CN 93236111 CN93236111U CN2146028Y CN 2146028 Y CN2146028 Y CN 2146028Y CN 93236111 CN93236111 CN 93236111 CN 93236111 U CN93236111 U CN 93236111U CN 2146028 Y CN2146028 Y CN 2146028Y
- Authority
- CN
- China
- Prior art keywords
- current
- power source
- groups
- dual
- regulator
- 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
Links
Images
Landscapes
- Instructional Devices (AREA)
Abstract
The utility model discloses a dual-circuit direct current power source. The dual-circuit direct current power source is composed of a power source transformer, rectification circuits, a current regulating device, and a motor shell. Two groups of output of the power source transformer are respectively connected with the two groups of rectification circuits and a regulating device. The regulating device is composed of a coarse regulator and a slight regulator. The coarse regulator can be formed by adopting a resistor and a converting switch. The slight regulator can adopt a round disk winding wire resistor with large power. Two paths of output current can be respectively connected with the excitation coil and the U-shaped conductor resistance of a current balance instrument. The utility model has the advantages of simple structure, low cost, convenient regulation, stable and reliable work, etc. The dual-circuit direct current power source not only can be used for a current balance experiment, but also can be used for other scientific research and production occasions which need current sources.
Description
The utility model is a kind of technical secondary school that is used for, the DC current source of Experiments of Electricity in general high school and the vocational technical school's physics course and Electrical Engineering Experiment, radio experiment.It also can be used for the radio experiment of two (or-three)-year-term college and university, also can be used for R﹠D institution and production occasion.The utility model belongs to the direct supply technical field, is the indispensable instrument of teaching and scientific research, production.
This instrument cooperates the spy good with current balance in the experiment of physics course current balance, and it is 3 amperes DC current that current balance requirement of experiment direct supply can provide two-way, and it is convenient and careful to require to regulate electric current.General voltage source of the prior art does not have big electric current output, can't reach requirement of experiment; Special-purpose big current source is then because of price is very expensive, and is bulky, regulates difficulty, also wants external two expensive slide wire resistors in the experiment.
The purpose of this utility model is at the deficiencies in the prior art, and a kind of low price, easy to adjust is provided, and can export the power supply of 3 amperes of DC current.
The utility model is made up of power transformer, rectification circuit, regulating current device and casing, two groups of outputs of power transformer are connected with regulating current device with two groups of rectification circuits respectively, independent output two-way DC current, regulating current device is made of coarse adjustment and fine setting two parts.The fine setting rotational potentiometer of regulating current device adopts high-power disk wire wound resistor; Coarse adjustment is made of resistance and switch.The adjusting knob of regulating current device and switch are installed on the panel of casing, and the two-way output terminal is arranged on the two ends of panel, and power switch is arranged on the centre position of panel.There is pilot lamp the top of power switch.
The utility model compared with prior art has advantages such as simple in structure, with low cost, easy to adjust, that working stability is reliable, all exportable 3 amperes of DC current of two-way.When the utility model is used for the current balance experiment, can saves and adopt two required expensive slide wire resistors of large-current electric potential source.The utility model can also be used for other occasion that needs current source.Load can connect two groups of coils of current balance, mutual inductor, self-induction coil, and magnetostrictive transducer and other need produce the coil load in constant bias magnetic field.
Fig. 1 is an electric principle schematic of the present utility model; Fig. 2 is the instrument panel synoptic diagram.
The utility model can take scheme shown in the drawings to realize.Adopt circuit shown in Figure 1, two groups of secondary coil U of power transformer B
1And U
2Respectively with two groups of bridge rectifier circuit D
1And D
2Be connected, constitute two groups of DC current outputs by regulating current device, two groups of regulating current devices are by resistance R
1, R
2, R
3, R
4, knob K
3, switch K
1And resistance R
1', R
2', R
3', R
4', knob K
4, switch K
2Constitute C
1, C
2And C
1', C
2' be filter capacitor.One group of secondary coil output 6V voltage of power transformer B is connected with pilot lamp, is connected to fuse, K in two groups of circuit
5Be power switch.Panel of the present utility model can adopt scheme as shown in Figure 2, and two binding posts in the left side are first group of output, and two binding posts in the right are second group of output.In order to cooperate the current balance instrument, two groups independently DC current can be different, and one group on the left side is smaller, one group on the right is bigger, because the resistance of the field coil of current balance instrument (also being magnetizing coil) is bigger, the U-shaped conductor resistance is less, and field coil connects the one group of output in the right, can obtain big electric current, though one group on left side output output voltage is a little less than one group on the right, when it connects the U-shaped conductor, because of pull-up resistor little, so output current is big, two groups of output currents can reach about 3 amperes.Two groups of electric currents can be regulated, and coarse adjustment knob (can be divided into fourth gear, 0.5A, 1A, 2A, 3A) and vernier adjustment knob are arranged, and can reach the purpose of even regulation in the 0.5A-3A scope.When load connect 2 Ω resistance, every group of output current all can reach about 3 amperes.When pull-up resistor during less than 2 Ω, every group output current can be above 3 amperes.Two groups of fuses of this instrument respectively are 4 amperes.
The DC voltage output of this instrument is adjustable below 10V, but DC voltage output is not the major parameter of this instrument, and the major parameter of this instrument is a DC current.
Claims (3)
1, a kind of two-way DC current source that is used for education experiment and scientific research and production, form by power transformer, rectification circuit, regulating current device and casing, it is characterized in that two groups of outputs of power transformer are connected with regulating current device with two groups of rectification circuits respectively, regulating current device is made of coarse adjustment and fine setting two parts.
2, two-way DC current source according to claim 1 is characterized in that regulating current device is by resistance R
1, R
2, R
3, R
4, knob K
3, switch K
1And resistance R
1', R
2', R
3', R
4', knob K
4, switch K
2Constitute.
3, two-way DC current source according to claim 1 and 2 is characterized in that the fine setting rotational potentiometer of regulating current device adopts high-power disk wire wound resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236111 CN2146028Y (en) | 1993-01-16 | 1993-01-16 | Dual-circuit d.c power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236111 CN2146028Y (en) | 1993-01-16 | 1993-01-16 | Dual-circuit d.c power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2146028Y true CN2146028Y (en) | 1993-11-10 |
Family
ID=33811367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93236111 Expired - Fee Related CN2146028Y (en) | 1993-01-16 | 1993-01-16 | Dual-circuit d.c power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2146028Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437414C (en) * | 2004-06-07 | 2008-11-26 | 株式会社小糸制作所 | Power supply device and vehicle lamp |
| CN105797867A (en) * | 2016-05-09 | 2016-07-27 | 长安大学 | Electrostatic mineral particle selector |
| CN110620501A (en) * | 2019-08-29 | 2019-12-27 | 合肥博雷电气有限公司 | PDU testing arrangement |
| CN110635691A (en) * | 2019-08-29 | 2019-12-31 | 合肥博雷电气有限公司 | Current source module |
-
1993
- 1993-01-16 CN CN 93236111 patent/CN2146028Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437414C (en) * | 2004-06-07 | 2008-11-26 | 株式会社小糸制作所 | Power supply device and vehicle lamp |
| CN105797867A (en) * | 2016-05-09 | 2016-07-27 | 长安大学 | Electrostatic mineral particle selector |
| CN105797867B (en) * | 2016-05-09 | 2018-05-04 | 长安大学 | A kind of electrostatic mineral microparticle Chooser |
| CN110620501A (en) * | 2019-08-29 | 2019-12-27 | 合肥博雷电气有限公司 | PDU testing arrangement |
| CN110635691A (en) * | 2019-08-29 | 2019-12-31 | 合肥博雷电气有限公司 | Current source module |
| CN110635691B (en) * | 2019-08-29 | 2021-06-29 | 合肥博雷电气有限公司 | Current source module |
| CN110620501B (en) * | 2019-08-29 | 2021-06-29 | 合肥博雷电气有限公司 | PDU testing arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4766365A (en) | Self-regulated transformer-inductor with air gaps | |
| US4150423A (en) | Transformer coupled pass element | |
| DE2332380A1 (en) | POWER SUPPLY WITH INVERTER AND MULTIPLE-WINDING TRANSFORMER AND CONTROL TRANSISTOR TO CONTROL THE MAIN SWITCHING TRANSISTORS AND PROTECT AGAINST OVERCURRENT | |
| US5880946A (en) | Magnetically controlled transformer apparatus for controlling power delivered to a load | |
| CN2146028Y (en) | Dual-circuit d.c power source | |
| EP0238516A1 (en) | Electric power converter | |
| CA1175479A (en) | Multi-voltage transformer input circuits with primary reactor voltage control | |
| CN86101356A (en) | Switching power supply | |
| US3904954A (en) | Voltage regulating transformer for series coupled loads | |
| SU982177A1 (en) | Device for adjusting carbon voltage regulators | |
| CN2157537Y (en) | Numerically-controlled regulated power supply | |
| CN2217815Y (en) | Special dc. voltage-stablizing device for thyristor | |
| CN2199582Y (en) | Magnetic voltage regulator | |
| CN1282299C (en) | Reactance regulating circuit and its application | |
| CN2113513U (en) | Adjustable voltage-stabilizing dc power supply | |
| CN212627707U (en) | Demagnetization power supply regulation and control system | |
| DE29517392U1 (en) | Electronic transformer 200 W for the operation of low-voltage halogen lamps in ABS housing, with connection terminal for 230 V AC input and 12 V DC output | |
| AT200231B (en) | Battery charger | |
| KR890001724Y1 (en) | Conversion of dc power input dc power output | |
| CN2032358U (en) | Outer magnetism divided transformer | |
| SU1108421A1 (en) | Ferroresonant voltage stabilizer | |
| JP3028213B2 (en) | Voltage regulator | |
| EP0179376A1 (en) | Controllable DC voltage supply for operating electric gas-discharge radiators | |
| SU1339512A1 (en) | D.c.voltage stabilizer | |
| JPH0445046Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |