CN200976501Y - Voltage regulating batteries for experimental laboratory - Google Patents
Voltage regulating batteries for experimental laboratory Download PDFInfo
- Publication number
- CN200976501Y CN200976501Y CN 200620094304 CN200620094304U CN200976501Y CN 200976501 Y CN200976501 Y CN 200976501Y CN 200620094304 CN200620094304 CN 200620094304 CN 200620094304 U CN200620094304 U CN 200620094304U CN 200976501 Y CN200976501 Y CN 200976501Y
- Authority
- CN
- China
- Prior art keywords
- battery pack
- chip
- connects
- potentiometer
- controller
- 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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Abstract
The utility model relates to a voltage regulation battery pack for laboratory, which comprises a controller and a crate. The plus end of battery pack is connected with the leg 3 of a chip U by a switch and is connected with the collector c of an audion Q. The fan-out B is connected with the minus end of the battery pack. The leg 2 of the chip U is connected with the base electrode B of the audion Q and is connected with the leg 1 of the chip U by a resistance R. The leg 1 of the chip U is connected with the variable resistance terminal of a potentiometer W. The variable resistance terminal is connected with the fixed resistance terminal of the potentiometer W, and the other end of the fixed resistance terminal of the potentiometer W is connected with the minus end of the battery pack, and the emitter e is connected with the fan-out A. A voltmeter, the knob of the potentiometer W, a plurality set of post heads, and a plurality of switch are arranged on the front panel of the crate. The battery pack and the controller are arranged in the crate. The utility model has the advantages of clear principle, simple structure, less material consumption, low cost, and suitability for school laboratory use.
Description
Technical field
The utility model relates to a kind of power supply, and concrete is laboratory pressure regulation battery pack.
Background technology
Be unable to do without power supply when carrying out Experiments of Electromagnetism in the laboratory, and also very harsh to power requirement sometimes, ripple coefficient too conference brings wrong conclusion to result of experiment, usually mostly use battery as power supply when therefore testing, yet need constantly change supply power voltage for obtaining different data in experiment, this just requires battery is gone here and there every now and then, reconfiguration in parallel, doing one like this is the progress of too loaded down with trivial details influence test, is exactly in addition just in case wrong can cause short circuit, damage equipment.
Students wishes to have a kind of simple in structure, and is easy to operate, and adjustable range is big, and few a kind of of consumed energy specializes in the voltage regulator that laboratory test is used.
Summary of the invention
The purpose of this utility model is to regulate the problem of inconvenience in order to solve the supply voltage that uses in present laboratory when testing, and provides a kind of range of regulation bigger, simple laboratory pressure regulation battery pack.
The technical scheme that adopts is:
Pressure regulation battery pack in laboratory comprises controller, cabinet.Described controller comprises that model is LM37 chip U, triode Q, battery pack, and the anode of battery pack connects an end x of switch with lead, and the other end y of switch connects 3 pin of chip U, and the anode of battery pack also connects the collector electrode c of triode Q simultaneously; The negative terminal of battery pack connects an end B of controller output end, 2 pin of chip U connect the base stage b of triode Q, 2 pin of chip U connect 1 pin of chip U through resistance R simultaneously, 1 pin of chip U meets the variable resistor terminals M of potentiometer W simultaneously, one end C of variable resistor terminals M and potentiometer W fixed resistance terminals interconnects, the other end D of potentiometer W fixed resistance terminals is connected to the negative terminal of battery pack, and the emitter e of triode Q connects the other end A of controller output end.
Described cabinet comprises front panel, voltmeter, is equiped with voltmeter on the plate in front, and the positive and negative end of voltmeter connects controller output end A, B two ends respectively with lead, the knob of front panel installing potentiometer W, and three terminals of potentiometer W connect on the controller.Front panel is provided with many windings terminal, and the positive and negative end of binding post connects output terminals A, the B of controller respectively, and switch is installed on the front panel; Be equiped with battery pack and controller in the cabinet.
Using method:
Open switch, the regulator potentiometer knob, after the needed voltage of voltmeter indicated value and experimental loop equates, off switch.
2. experimental loop is connected on the binding post on the case front panel by polarity.
3. opening switch can test.
4. when needing the voltage of transformation value in the experiment, answer the slow-action potentiometer, note the indicating value of voltmeter constantly.
5. test the off switch that finishes, remove wiring, potentiometer is screwed into zero point.
Clear, the simple structure of the utility model principle; the consumption material is few; cheap; being suitable for the school laboratory uses; it should be noted that; under the prerequisite that does not change general idea and principle, can also make some changes or distortion to the utility model, this belongs to the scope of the utility model protection equally.
Description of drawings
Fig. 1 is the circuit diagram of the utility model embodiment.
Fig. 2 is the appearance structure schematic diagram of the utility model embodiment
Embodiment:
Embodiment
As shown in Figure 1 and Figure 2, pressure regulation battery pack in laboratory comprises controller, cabinet 6.The anode of battery pack 8 is connected with lead with an end x of switch 4, and the other end y of switch 4 connects 3 pin of chip U, and the negative terminal of battery pack 8 connects an end B of controller output end; 2 pin of chip U connect the base stage b of triode Q, 2 pin of chip U connect 1 pin of chip U simultaneously by resistance R, 1 pin of chip U meets the variable resistor binding post M of potentiometer W simultaneously, one end C of variable resistor binding post M and potentiometer fixed resistance terminals interconnects, and the other end D of electric current device W fixed resistance terminals is connected to the negative terminal of battery pack 8.The emitter e of triode Q connects the other end A of controller output end.
In cabinet 6, be equiped with battery pack 8, controller, the left side of the front panel 2 of cabinet 6 is equiped with voltmeter 1, corresponding respectively output terminals A, the B that connects controller of positive and negative two terminals of voltmeter 1, the middle part of front panel 2 is equiped with positive and negative two binding posts 3,7, positive terminal 3 be installed in negative terminal 7 above, positive and negative binding post 3,7 is connected with controller output end A, B two ends respectively, the upper right quarter of front panel 2 is equiped with potentiometer W knob 5, and right lower quadrant is equiped with switch 4.
Claims (1)
1, laboratory pressure regulation battery pack, comprise controller, cabinet (6), it is characterized in that: described controller comprises chip U, triode Q, battery pack (8), the anode of battery pack (8) connects an end x of switch (4) with lead, the other end y of switch (4) connects (3) pin of chip U, and the anode of battery pack (8) also connects the collector electrode c of triode Q simultaneously; The negative terminal of battery pack (8) connects an end B of controller output end, (2) pin of chip U connects the base stage b of triode Q, (2) pin of chip U connects (1) pin of chip U through resistance R simultaneously, (1) pin of chip U meets the variable resistor terminals M of potentiometer W simultaneously, one end C of the fixed resistance terminals of variable resistor terminals M and potentiometer W interconnects, the other end D of the fixed resistance terminals of potentiometer W is connected to the negative terminal of battery pack (8), and the emitter e of triode Q connects the other end A of controller output end; Described cabinet (6) comprises front panel (2), voltmeter (1), be equiped with voltmeter (1) on the plate (2) in front, the positive and negative end of voltmeter (1) connects controller output end A, B two ends respectively with lead, front panel (2) is gone up the knob of installing potentiometer W, and three terminals of potentiometer W connect on the controller; Front panel (2) is provided with many windings terminal, and the positive and negative end of binding post connects output terminals A, the B of controller respectively with lead, in front plate (2) installing switch (4); Be equiped with battery pack (8) and controller in the cabinet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620094304 CN200976501Y (en) | 2006-11-22 | 2006-11-22 | Voltage regulating batteries for experimental laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620094304 CN200976501Y (en) | 2006-11-22 | 2006-11-22 | Voltage regulating batteries for experimental laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200976501Y true CN200976501Y (en) | 2007-11-14 |
Family
ID=38902781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620094304 Expired - Fee Related CN200976501Y (en) | 2006-11-22 | 2006-11-22 | Voltage regulating batteries for experimental laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200976501Y (en) |
-
2006
- 2006-11-22 CN CN 200620094304 patent/CN200976501Y/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 | ||
| 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 |