CN204190618U - A kind of biased adjustable temperature offset supply - Google Patents
A kind of biased adjustable temperature offset supply Download PDFInfo
- Publication number
- CN204190618U CN204190618U CN201420615144.3U CN201420615144U CN204190618U CN 204190618 U CN204190618 U CN 204190618U CN 201420615144 U CN201420615144 U CN 201420615144U CN 204190618 U CN204190618 U CN 204190618U
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- triode
- resistance
- power amplifier
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- power supply
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Abstract
The utility model discloses a kind of biased adjustable temperature offset supply, primarily of DC power supply S, the control circuit be connected with DC power supply S-phase, the temperature-compensation circuit be connected with control circuit, and the photo resistance CDS to be connected with temperature-compensation circuit forms, it is characterized in that, between temperature-compensation circuit and photo resistance CDS, be also serially connected with biased conditioned circuit; Described biased conditioned circuit by diode D, power amplifier P2, the compositions such as the resistance R8 that one end is connected with the P pole of diode D, the other end is connected with the electrode input end of power amplifier P2.The utility model overall structure is simple, and it makes and very easy to use.Meanwhile, the utility model can adjust output current value automatically according to the variations in temperature of external environment condition, thus guarantees its stable performance.
Description
Technical field
The utility model relates to a kind of power supply, specifically refers to a kind of biased adjustable temperature offset supply.
Background technology
At present; whether battery manufacturer generally all needs the various functions detecting this battery protection circuit with bipolar power supply up to standard after having made battery protection circuit, namely utilizes bipolar power supply to realize the quickly calibrated and test of overvoltage to battery protection circuit, under-voltage, overcurrent fast.When so-called bipolar power supply refers to this corona discharge, the electric current of its power source internal flows to positive pole from negative pole, and be flow to negative pole (when the electric current of traditional its inside of common power all can only flow to positive pole from negative pole, and can not flow to negative pole from positive pole) from positive pole to the electric current of its power source internal during this power source charges.But bipolar power supply sold on the market at present is easily subject to the impact of ambient temperature, its power supply performance can be made unstable.How effectively overcoming the negative effect that ambient temperature is brought, is the difficult problem that people are badly in need of solving.
Utility model content
The purpose of this utility model is to overcome the impact that current bipolar power supply is easily subject to ambient temperature, and then causes the defect of unstable properties, provides a kind of biased adjustable temperature offset supply.
The purpose of this utility model is achieved through the following technical solutions: a kind of biased adjustable temperature offset supply, primarily of DC power supply S, the control circuit be connected with DC power supply S-phase, the temperature-compensation circuit be connected with control circuit, and the photo resistance CDS to be connected with temperature-compensation circuit forms, and be also serially connected with biased conditioned circuit between temperature-compensation circuit and photo resistance CDS.
Described biased conditioned circuit is by diode D, power amplifier P2, the resistance R8 that one end is connected with the P pole of diode D, the other end is connected with the electrode input end of power amplifier P2, the potentiometer R9 that one end is connected with temperature-compensation circuit, the other end is connected with the negative input of power amplifier P2 after being connected with the N pole of diode D again, and the triode Q5 that base stage is connected with the output of power amplifier P2, its collector electrode is connected with the N pole of diode D after resistance R10 forms; The electrode input end of described power amplifier P2 is also connected with the control end of potentiometer R9, and one end of photo resistance CDS is then connected with the emitter of triode Q5, its other end ground connection; The electrode input end also ground connection of described power amplifier P2.
Further, described control circuit is by triode Q1, triode Q2, be serially connected in the resistance R1 between the collector electrode of triode Q1 and the collector electrode of triode Q2, be serially connected in the RC filter circuit between the emitter of triode Q1 and the negative pole of DC power supply S, be serially connected in the resistance R2 between the base stage of triode Q1 and the negative pole of DC power supply S, and the resistance R5 in parallel with DC power supply S-phase forms; The described emitter of triode Q2 is connected with the positive pole of DC power supply S, and the base stage of triode Q2 is also connected with the collector electrode of triode Q1.
Described temperature-compensation circuit is by triode Q3, triode Q4, power amplifier P1, be serially connected in the resistance R4 between the collector electrode of triode Q3 and the collector electrode of triode Q2, be serially connected in the electric capacity C2 between the electrode input end of power amplifier P1 and output, be serially connected in the electric capacity C3 between the negative input of power amplifier P1 and output, negative pole is connected with the emitter of triode Q4, the electric capacity C4 that positive pole is connected with the N pole of diode D, one end is connected with the negative pole of electric capacity C4, the resistance R6 that the other end is connected with the P pole of diode D, and one end is connected with the output of power amplifier P1, the resistance R7 that the other end is connected with potentiometer R9 forms, the electrode input end of described power amplifier P1 is connected with the collector electrode of triode Q4, and its negative input is connected with the emitter of triode Q3, the collector electrode of described triode Q4 is connected with the collector electrode of triode Q2, its base earth, the base stage of triode Q3 is connected with the positive pole of DC power supply S.
For guaranteeing result of use, described RC filtered electrical routing resistance R3, and form with the electric capacity C1 that resistance R3 is in parallel, and described electric capacity C2, electric capacity C3 and electric capacity C4 are polar capacitor.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model overall structure is simple, and it makes and very easy to use.
(2) the utility model can adjust output current value automatically according to the variations in temperature of external environment condition, thus guarantees its stable performance.
(3) the utility model by DC power supply and biased conditioned circuit used in combination after, as a new current source, effectively can not only improve the output accuracy of power supply, and its stable performance can also be guaranteed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
As shown in Figure 1, temp. compensation type power supply described in the utility model is primarily of DC power supply S, the control circuit be connected with DC power supply S-phase, the temperature-compensation circuit be connected with control circuit, the biased conditioned circuit be connected with temperature-compensation circuit, and the photo resistance CDS be connected with biased conditioned circuit forms.
Wherein, biased conditioned circuit is by diode D, and power amplifier P2, resistance R8, potentiometer R9, resistance R10 and triode Q5 form.During connection, one end of resistance R8 is connected with the P pole of diode D, its other end is connected with the electrode input end of power amplifier P2; Potentiometer R9 is used for the input voltage value of regulating power amplifier P2, its one end is connected with temperature-compensation circuit, its other end is connected with the negative input of power amplifier P2 after being then connected with the N pole of diode D again, and its control end is then connected with the electrode input end of power amplifier P2; The base stage of triode Q5 is connected with the output of power amplifier P2, its collector electrode is then connected with the N pole of diode D after resistance R10.
One end of described photo resistance CDS is connected with the emitter of triode Q5, its other end ground connection, and the electrode input end of power amplifier P2 also ground connection.That is, this photo resistance CDS is serially connected between the emitter of triode Q5 and the electrode input end of power amplifier P2, and the two ends of photo resistance CDS are then the output being used for voltage as output.
Described control circuit is by triode Q1, and triode Q2, resistance R1, resistance R2, resistance R5 and RC filter circuit form.During connection, resistance R1 is serially connected between the collector electrode of triode Q1 and the collector electrode of triode Q2, between the emitter that RC filter circuit is then serially connected in triode Q1 and the negative pole of DC power supply S.Resistance R2 is serially connected between the base stage of triode Q1 and the negative pole of DC power supply S, and resistance R5 is then in parallel with DC power supply S-phase.
Meanwhile, the emitter of triode Q2 is connected with the positive pole of DC power supply S, and its base stage is also connected with the collector electrode of triode Q1.For guaranteeing operational effect, the resistance of resistance R1, resistance R2, resistance R3 and resistance R5 is 10K Ω.RC filtered electrical routing resistance R3 in the application, and form with the electric capacity C1 that resistance R3 is in parallel.
Temperature-compensation circuit is used for power back-off during ambient temperature change, it is by triode Q3, triode Q4, power amplifier P1, be serially connected in the resistance R4 between the collector electrode of triode Q3 and the collector electrode of triode Q2, be serially connected in the electric capacity C2 between the electrode input end of power amplifier P1 and output, be serially connected in the electric capacity C3 between the negative input of power amplifier P1 and output, negative pole is connected with the emitter of triode Q4, the electric capacity C4 that positive pole is connected with the N pole of diode D, one end is connected with the negative pole of electric capacity C4, the resistance R6 that the other end is then connected with the P pole of diode D, and one end is connected with the output of power amplifier P1, the resistance R7 that the other end is connected with potentiometer R9 forms.That is, the input of power amplifier P1 is connected with the N pole of diode D after potentiometer R9 through resistance R7.
The electrode input end of power amplifier P1 is connected with the collector electrode of triode Q4, and its negative input is also connected with the emitter of triode Q3.And the collector electrode of triode Q4 is also connected with the collector electrode of triode Q2, and its base earth.
For guaranteeing result of use, described electric capacity C2, electric capacity C3 and electric capacity C4 all preferentially adopt polar capacitor to realize.
As mentioned above, just the utility model can be realized preferably.
Claims (5)
1. a biased adjustable temperature offset supply, primarily of DC power supply S, the control circuit be connected with DC power supply S-phase, the temperature-compensation circuit be connected with control circuit, and the photo resistance CDS to be connected with temperature-compensation circuit forms, it is characterized in that, between temperature-compensation circuit and photo resistance CDS, be also serially connected with biased conditioned circuit; Described biased conditioned circuit is by diode D, power amplifier P2, the resistance R8 that one end is connected with the P pole of diode D, the other end is connected with the electrode input end of power amplifier P2, the potentiometer R9 that one end is connected with temperature-compensation circuit, the other end is connected with the negative input of power amplifier P2 after being connected with the N pole of diode D again, and the triode Q5 that base stage is connected with the output of power amplifier P2, its collector electrode is connected with the N pole of diode D after resistance R10 forms; The electrode input end of described power amplifier P2 is also connected with the control end of potentiometer R9, and one end of photo resistance CDS is then connected with the emitter of triode Q5, its other end ground connection; The electrode input end also ground connection of described power amplifier P2.
2. one according to claim 1 is biased adjustable temperature offset supply, it is characterized in that, described control circuit is by triode Q1, triode Q2, be serially connected in the resistance R1 between the collector electrode of triode Q1 and the collector electrode of triode Q2, be serially connected in the RC filter circuit between the emitter of triode Q1 and the negative pole of DC power supply S, be serially connected in the resistance R2 between the base stage of triode Q1 and the negative pole of DC power supply S, and the resistance R5 in parallel with DC power supply S-phase forms; The described emitter of triode Q2 is connected with the positive pole of DC power supply S, and the base stage of triode Q2 is also connected with the collector electrode of triode Q1.
3. one according to claim 2 is biased adjustable temperature offset supply, it is characterized in that, described temperature-compensation circuit is by triode Q3, triode Q4, power amplifier P1, be serially connected in the resistance R4 between the collector electrode of triode Q3 and the collector electrode of triode Q2, be serially connected in the electric capacity C2 between the electrode input end of power amplifier P1 and output, be serially connected in the electric capacity C3 between the negative input of power amplifier P1 and output, negative pole is connected with the emitter of triode Q4, the electric capacity C4 that positive pole is connected with the N pole of diode D, one end is connected with the negative pole of electric capacity C4, the resistance R6 that the other end is connected with the P pole of diode D, and one end is connected with the output of power amplifier P1, the resistance R7 that the other end is connected with potentiometer R9 forms, the electrode input end of described power amplifier P1 is connected with the collector electrode of triode Q4, and its negative input is connected with the emitter of triode Q3, the collector electrode of described triode Q4 is connected with the collector electrode of triode Q2, its base earth, the base stage of triode Q3 is connected with the positive pole of DC power supply S.
4. one according to claim 3 is biased adjustable temperature offset supply, it is characterized in that, described RC filtered electrical routing resistance R3, and forms with the electric capacity C1 that resistance R3 is in parallel.
5. one according to claim 4 is biased adjustable temperature offset supply, it is characterized in that, described electric capacity C2, electric capacity C3 and electric capacity C4 are polar capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615144.3U CN204190618U (en) | 2014-10-18 | 2014-10-18 | A kind of biased adjustable temperature offset supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615144.3U CN204190618U (en) | 2014-10-18 | 2014-10-18 | A kind of biased adjustable temperature offset supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190618U true CN204190618U (en) | 2015-03-04 |
Family
ID=52622588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420615144.3U Expired - Fee Related CN204190618U (en) | 2014-10-18 | 2014-10-18 | A kind of biased adjustable temperature offset supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190618U (en) |
-
2014
- 2014-10-18 CN CN201420615144.3U patent/CN204190618U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20151018 |
|
| EXPY | Termination of patent right or utility model |