CN104901539A - Coupled precise reverse compensating power supply based on constant current protection - Google Patents
Coupled precise reverse compensating power supply based on constant current protection Download PDFInfo
- Publication number
- CN104901539A CN104901539A CN201510317217.XA CN201510317217A CN104901539A CN 104901539 A CN104901539 A CN 104901539A CN 201510317217 A CN201510317217 A CN 201510317217A CN 104901539 A CN104901539 A CN 104901539A
- Authority
- CN
- China
- Prior art keywords
- triode
- resistance
- circuit
- power amplifier
- pole
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 23
- 230000001143 conditioned effect Effects 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 14
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Amplifiers (AREA)
Abstract
The invention discloses a coupled precise reverse compensating power supply based on constant current protection. The coupled reverse compensating power supply is composed of the components of a control circuit, a temperature compensating circuit, a photoresistor CDS which is connected with the temperature compensating circuit, a bias adjustable circuit which is serially connected between the temperature compensating circuit and the photoresistor CDS, a precise reverse current source circuit which is arranged between the control circuit and the temperature compensating circuit, and a logic protecting emitter coupled amplifying circuit which is serially connected between the precise reverse current source circuit and the bias adjustable circuit. The Reverse compensating power supply is characterized in that a constant-current protecting circuit is serially connected between the logic protecting emitter coupled amplifying circuit and the bias adjustable circuit. The logic protecting emitter coupled amplifying circuit is provided with the constant-current protecting circuit which can lock the working current of the logic protecting emitter coupled amplifying circuit, thereby keeping the working current of the logic protecting emitter coupled amplifying circuit in a certain range and preventing power supply performance reduction caused by current fluctuation.
Description
Technical field
The present invention relates to a kind of power supply, specifically refer to the accurate Contrary compensation power supply of a kind of manifold type based on constant current protection.
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 its operating current of bipolar power supply sold on the market at present easily fluctuates, its power supply performance can be made unstable.How effectively overcoming the negative effect that current fluctuation brings, is the difficult problem that people are badly in need of solving.
Summary of the invention
The object of the invention is to overcome its operating current of current bipolar power supply easily fluctuate, the defect of its power supply performance instability can be made, provide a kind of manifold type based on constant current protection accurate Contrary compensation power supply.
Object of the present invention is achieved through the following technical solutions: the accurate Contrary compensation power supply of a kind of manifold type based on constant current protection, it is by control circuit, temperature-compensation circuit, the photo resistance CDS be connected with temperature-compensation circuit, be serially connected in the biased conditioned circuit be connected in series between temperature-compensation circuit with photo resistance CDS, be arranged on the accurate reverse current source circuit between control circuit and temperature-compensation circuit, be serially connected in the virtual protection emitter-base bandgap grading manifold type amplifying circuit between accurate reverse current source circuit and biased conditioned circuit, and the constant current protective circuit be serially connected between virtual protection emitter-base bandgap grading manifold type amplifying circuit and biased conditioned circuit forms.
Further, described constant current protective circuit is by protect IC U1, triode Q8, triode Q9, be serially connected in the diode D5 between the COMP pin of protect IC U1 and VREF pin, P pole is connected with the RT pin of protect IC U1, the diode D6 that N pole is then connected with the FB pin of protect IC U1 after resistance R22, one end is connected with the CS pin of protect IC U1, the resistance R23 of other end ground connection, one end is connected with the DVR pin of protect IC U1, the resistance R24 that the other end is then connected with the base stage of triode Q9, one end is connected with the collector electrode of triode Q9, the resistance R26 that the other end is then connected with the collector electrode of triode Q8 after resistance R27, one end is connected with the emitter of triode Q8, the resistance R25 of other end ground connection, and positive pole is connected with the emitter of triode Q8, the polar capacitor C9 that negative pole is then connected with virtual protection emitter-base bandgap grading manifold type amplifying circuit forms, the N pole of described diode D6 is connected with biased conditioned circuit, the base stage of triode Q8 is connected with the tie point of resistance R26 with resistance R27, and the grounded emitter of triode Q9, the VREF pin of described protect IC U1 is connected with its VCC pin, its GND pin ground connection.
Described accurate reverse current source circuit is by LMC6062 type operational amplifier P, one end is connected with the negative input of LMC6062 type operational amplifier P, the resistance R12 that the other end is connected with the electrode input end of LMC6062 type operational amplifier P after current source S, one end is connected with the negative input of LMC6062 type operational amplifier P, the resistance R11 that the other end is connected with the output of LMC6062 type operational amplifier P after LM4431 reference circuits, and the resistance R13 be serially connected between the electrode input end of LMC6062 type operational amplifier P and output forms, described control circuit is then 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 output of LMC6062 type operational amplifier P, be serially connected in the resistance R2 between the base stage of triode Q1 and the output of LMC6062 type operational amplifier P, and the resistance R5 that one end is connected with the emitter of triode Q2, the other end is connected with the output of LMC6062 type operational amplifier P forms, the emitter of described triode Q2 is also connected with the tie point of LM4431 reference circuits with resistance R11, described virtual protection emitter-base bandgap grading manifold type amplifying circuit is primarily of triode Q6, triode Q7, power amplifier P3, power amplifier P4, be serially connected in the resistance R15 between the negative input of power amplifier P3 and output, be serially connected in the polar capacitor C7 between the electrode input end of power amplifier P4 and output, be serially connected in the resistance R14 between the electrode input end of power amplifier P3 and the collector electrode of triode Q6, be serially connected in the resistance R16 between the collector electrode of triode Q6 and the base stage of triode Q7, the electric capacity C6 be in parallel with resistance R16, negative pole is connected with the electrode input end of power amplifier P3, the polar capacitor C5 that positive pole is connected with the emitter of triode Q6 after resistance R17, be serially connected in the resistance R18 between the base stage of triode Q7 and the positive pole of polar capacitor C5, positive pole is connected with the emitter of triode Q7, negative pole is in turn through electric capacity C8 that voltage stabilizing didoe D2 is connected with the output of power amplifier P3 after resistance R19, P pole is connected with the output of power amplifier P4, the diode D3 that N pole is connected with the tie point of resistance R19 with voltage stabilizing didoe D2 after resistance R20 through resistance R21, and P pole is connected with the negative pole of electric capacity C8, the voltage stabilizing didoe D4 that N pole is connected with the tie point of resistance R21 with diode D3 forms, the base stage of described triode Q6 is connected with the positive pole of polar capacitor C5, and its emitter is connected with the emitter of triode Q7, and its collector electrode is connected with the negative input of power amplifier P3, the collector electrode of triode Q7 is connected with the negative input of power amplifier P4, and the electrode input end of power amplifier P4 is connected with the output of power amplifier P3, the positive pole of described polar capacitor C5 is connected with the output of LMC6062 type operational amplifier P, and resistance R21 is then connected with biased conditioned circuit and constant current protective circuit respectively with the tie point of resistance R20.
Described biased conditioned circuit is by diode D1, power amplifier P2, the resistance R8 that one end is connected with the P pole of diode D1, 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 D1 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 D1 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; Described resistance R21 is then connected with the electrode input end of power amplifier P2 and the negative pole of polar capacitor C9 respectively with the tie point of resistance R20; The N pole of described diode D6 is also connected with the tie point of temperature-compensation circuit with potentiometer R9.
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 D1, 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 D1, and one end is connected with the output of power amplifier P1, the resistance R7 that the other end is connected with the N pole of diode D6 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 tie point of LM4431 reference circuits with resistance R11.
Described RC filtered electrical routing resistance R3, and form with the electric capacity C1 that resistance R3 is in parallel.
Described electric capacity C2, electric capacity C3 and electric capacity C4 are polar capacitor.
Described protect IC U1 is AP3843CP integrated circuit.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) overall structure of the present invention is simple, and it makes and very easy to use.
(2) the present invention can adjust output current value automatically according to the variations in temperature of external environment condition, thus guarantees its stable performance.
(3) the present invention is by accurate reverse current source for other circuit provide electric energy, effectively can not only improve the output accuracy of power supply, and can also guarantee its stable performance.
(4) the present invention is provided with constant current protective circuit, and it can lock operating current of the present invention, thus operating current of the present invention is maintained in certain scope, avoids affecting power supply performance of the present invention because of current fluctuation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of virtual protection emitter-base bandgap grading manifold type amplifying circuit of the present invention.
Fig. 3 is constant current protective circuit structural representation of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1; the present invention is by control circuit; temperature-compensation circuit; the photo resistance CDS be connected with temperature-compensation circuit; be serially connected in the biased conditioned circuit be connected in series between temperature-compensation circuit with photo resistance CDS; be arranged on the accurate reverse current source circuit between control circuit and temperature-compensation circuit; be serially connected in the virtual protection emitter-base bandgap grading manifold type amplifying circuit between accurate reverse current source circuit and biased conditioned circuit, and the constant current protective circuit be serially connected between virtual protection emitter-base bandgap grading manifold type amplifying circuit and biased conditioned circuit forms.
Wherein, accurate reverse current source circuit is used for providing working power for control circuit and temperature-compensation circuit, and it is by LMC6062 type operational amplifier P, current source S, resistance R11, resistance R12, resistance R13 and LM4431 reference circuits composition.During connection, one end of resistance R12 is connected with the negative input of LMC6062 type operational amplifier P, and its other end is connected with the electrode input end of LMC6062 type operational amplifier P after current source S; One end of resistance R11 is connected with the negative input of LMC6062 type operational amplifier P, and its other end is connected with the output of LMC6062 type operational amplifier P after LM4431 reference circuits; Between the electrode input end that resistance R13 is then serially connected in LMC6062 type operational amplifier P and output.
Described control circuit is then 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 output of LMC6062 type operational amplifier P, be serially connected in the resistance R2 between the base stage of triode Q1 and the output of LMC6062 type operational amplifier P, and the resistance R5 that one end is connected with the emitter of triode Q2, the other end is connected with the output of LMC6062 type operational amplifier P forms.Meanwhile, the emitter of this triode Q2 is also connected with the tie point of LM4431 reference circuits with resistance R11.
Biased conditioned circuit is by diode D1, 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 D1, 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 and constant current protective circuit respectively, its other end is connected with the negative input of power amplifier P2 after being then connected with the N pole of diode D1 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 D1 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.
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 D1, 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 D1, and one end is connected with the output of power amplifier P1, the resistance R7 that the other end is connected with the tie point of constant current protective circuit with potentiometer R9 forms.That is, the input of power amplifier P1 is connected with the N pole of diode D1 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.
Meanwhile, the base stage of triode Q3 is also connected with the tie point of LM4431 reference circuits with resistance R11, to guarantee that this accurate reverse current source circuit can provide operating current for it.For guaranteeing result of use, described electric capacity C2, electric capacity C3 and electric capacity C4 all preferentially adopt polar capacitor to realize.
The structure of described virtual protection emitter-base bandgap grading manifold type amplifying circuit as shown in Figure 2, namely it is by triode Q6, triode Q7, power amplifier P3, power amplifier P4, be serially connected in the resistance R15 between the negative input of power amplifier P3 and output, be serially connected in the polar capacitor C7 between the electrode input end of power amplifier P4 and output, be serially connected in the resistance R14 between the electrode input end of power amplifier P3 and the collector electrode of triode Q6, be serially connected in the resistance R16 between the collector electrode of triode Q6 and the base stage of triode Q7, the electric capacity C6 be in parallel with resistance R16, negative pole is connected with the electrode input end of power amplifier P3, the polar capacitor C5 that positive pole is connected with the emitter of triode Q6 after resistance R17, be serially connected in the resistance R18 between the base stage of triode Q7 and the positive pole of polar capacitor C5, positive pole is connected with the emitter of triode Q7, negative pole is in turn through electric capacity C8 that voltage stabilizing didoe D2 is connected with the output of power amplifier P3 after resistance R19, P pole is connected with the output of power amplifier P4, the diode D3 that N pole is connected with the tie point of resistance R19 with voltage stabilizing didoe D2 after resistance R20 through resistance R21, and P pole is connected with the negative pole of electric capacity C8, the voltage stabilizing didoe D4 that N pole is connected with the tie point of resistance R21 with diode D3 forms.
Meanwhile, the base stage of described triode Q6 is connected with the positive pole of polar capacitor C5, and its emitter is connected with the emitter of triode Q7, and its collector electrode is connected with the negative input of power amplifier P3; The collector electrode of triode Q7 is connected with the negative input of power amplifier P4, and the electrode input end of power amplifier P4 is connected with the output of power amplifier P3.
During connection, the positive pole of described polar capacitor C5 is connected with the output of LMC6062 type operational amplifier P, and the tie point of resistance R21 and resistance R20 is then connected with the electrode input end of power amplifier P2 and constant current protective circuit respectively.
Described its structure of constant current protective circuit as shown in Figure 3; it comprises protect IC U1; triode Q8; triode Q9; be serially connected in the diode D5 between the COMP pin of protect IC U1 and VREF pin, P pole be connected with the RT pin of protect IC U1, diode D6 that N pole is then connected with the FB pin of protect IC U1 after resistance R22.Wherein, resistance R22 is that constant current detects resistance; pressure drop on it feeds back to the FB pin of protect IC U1; protect IC U1 then compares according to the height of this feedback voltage and the reference voltage of its inside; thus adjust the pulse duty factor that its DVR pin exports, then can reach the object of constant current thus.
In order to reach better effect, this constant current protective circuit also includes one end and is connected with the CS pin of protect IC U1, the resistance R23 of other end ground connection, one end is connected with the DVR pin of protect IC U1, the resistance R24 that the other end is then connected with the base stage of triode Q9, one end is connected with the collector electrode of triode Q9, the resistance R26 that the other end is then connected with the collector electrode of triode Q8 after resistance R27, one end is connected with the emitter of triode Q8, the resistance R25 of other end ground connection, and positive pole is connected with the emitter of triode Q8, the polar capacitor C9 that negative pole is then connected with virtual protection emitter-base bandgap grading manifold type amplifying circuit.
The N pole of described diode D6 is connected with biased conditioned circuit; The base stage of triode Q8 is connected with the tie point of resistance R26 with resistance R27, and the grounded emitter of triode Q9.The VREF pin of described protect IC U1 is connected with its VCC pin, its GND pin ground connection.In order to reach better protected effect, this protect IC U1 is preferably AP3843CP integrated circuit to realize.
As mentioned above, just the present invention can be realized preferably.
Claims (7)
1. the accurate Contrary compensation power supply of the manifold type based on constant current protection, it is by control circuit, temperature-compensation circuit, the photo resistance CDS be connected with temperature-compensation circuit, be serially connected in the biased conditioned circuit be connected in series between temperature-compensation circuit with photo resistance CDS, be arranged on the accurate reverse current source circuit between control circuit and temperature-compensation circuit, and the virtual protection emitter-base bandgap grading manifold type amplifying circuit be serially connected between accurate reverse current source circuit and biased conditioned circuit forms, it is characterized in that, between virtual protection emitter-base bandgap grading manifold type amplifying circuit and biased conditioned circuit, be also serially connected with constant current protective circuit, described constant current protective circuit is by protect IC U1, triode Q8, triode Q9, be serially connected in the diode D5 between the COMP pin of protect IC U1 and VREF pin, P pole is connected with the RT pin of protect IC U1, the diode D6 that N pole is then connected with the FB pin of protect IC U1 after resistance R22, one end is connected with the CS pin of protect IC U1, the resistance R23 of other end ground connection, one end is connected with the DVR pin of protect IC U1, the resistance R24 that the other end is then connected with the base stage of triode Q9, one end is connected with the collector electrode of triode Q9, the resistance R26 that the other end is then connected with the collector electrode of triode Q8 after resistance R27, one end is connected with the emitter of triode Q8, the resistance R25 of other end ground connection, and positive pole is connected with the emitter of triode Q8, the polar capacitor C9 that negative pole is then connected with virtual protection emitter-base bandgap grading manifold type amplifying circuit forms, the N pole of described diode D6 is connected with biased conditioned circuit, the base stage of triode Q8 is connected with the tie point of resistance R26 with resistance R27, and the grounded emitter of triode Q9, the VREF pin of described protect IC U1 is connected with its VCC pin, its GND pin ground connection.
2. the accurate Contrary compensation power supply of a kind of manifold type based on constant current protection according to claim 1, it is characterized in that, described accurate reverse current source circuit is by LMC6062 type operational amplifier P, one end is connected with the negative input of LMC6062 type operational amplifier P, the resistance R12 that the other end is connected with the electrode input end of LMC6062 type operational amplifier P after current source S, one end is connected with the negative input of LMC6062 type operational amplifier P, the resistance R11 that the other end is connected with the output of LMC6062 type operational amplifier P after LM4431 reference circuits, and the resistance R13 be serially connected between the electrode input end of LMC6062 type operational amplifier P and output forms, described control circuit is then 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 output of LMC6062 type operational amplifier P, be serially connected in the resistance R2 between the base stage of triode Q1 and the output of LMC6062 type operational amplifier P, and the resistance R5 that one end is connected with the emitter of triode Q2, the other end is connected with the output of LMC6062 type operational amplifier P forms, the emitter of described triode Q2 is also connected with the tie point of LM4431 reference circuits with resistance R11, described virtual protection emitter-base bandgap grading manifold type amplifying circuit is primarily of triode Q6, triode Q7, power amplifier P3, power amplifier P4, be serially connected in the resistance R15 between the negative input of power amplifier P3 and output, be serially connected in the polar capacitor C7 between the electrode input end of power amplifier P4 and output, be serially connected in the resistance R14 between the electrode input end of power amplifier P3 and the collector electrode of triode Q6, be serially connected in the resistance R16 between the collector electrode of triode Q6 and the base stage of triode Q7, the electric capacity C6 be in parallel with resistance R16, negative pole is connected with the electrode input end of power amplifier P3, the polar capacitor C5 that positive pole is connected with the emitter of triode Q6 after resistance R17, be serially connected in the resistance R18 between the base stage of triode Q7 and the positive pole of polar capacitor C5, positive pole is connected with the emitter of triode Q7, negative pole is in turn through electric capacity C8 that voltage stabilizing didoe D2 is connected with the output of power amplifier P3 after resistance R19, P pole is connected with the output of power amplifier P4, the diode D3 that N pole is connected with the tie point of resistance R19 with voltage stabilizing didoe D2 after resistance R20 through resistance R21, and P pole is connected with the negative pole of electric capacity C8, the voltage stabilizing didoe D4 that N pole is connected with the tie point of resistance R21 with diode D3 forms, the base stage of described triode Q6 is connected with the positive pole of polar capacitor C5, and its emitter is connected with the emitter of triode Q7, and its collector electrode is connected with the negative input of power amplifier P3, the collector electrode of triode Q7 is connected with the negative input of power amplifier P4, and the electrode input end of power amplifier P4 is connected with the output of power amplifier P3, the positive pole of described polar capacitor C5 is connected with the output of LMC6062 type operational amplifier P, and resistance R21 is then connected with biased conditioned circuit and constant current protective circuit respectively with the tie point of resistance R20.
3. the accurate Contrary compensation power supply of a kind of manifold type based on constant current protection according to claim 2, it is characterized in that, described biased conditioned circuit is by diode D1, power amplifier P2, one end is connected with the P pole of diode D1, the resistance R8 that the other end is connected with the electrode input end of power amplifier P2, one end is connected with temperature-compensation circuit, the potentiometer R9 that the other end is connected with the negative input of power amplifier P2 after being connected with the N pole of diode D1 again, and base stage is connected with the output of power amplifier P2, the triode Q5 that its collector electrode is connected with the N pole of diode D1 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, described resistance R21 is then connected with the electrode input end of power amplifier P2 and the negative pole of polar capacitor C9 respectively with the tie point of resistance R20, the N pole of described diode D6 is also connected with the tie point of temperature-compensation circuit with potentiometer R9.
4. the accurate Contrary compensation power supply of a kind of manifold type based on constant current protection according to claim 3, 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 D1, 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 D1, and one end is connected with the output of power amplifier P1, the resistance R7 that the other end is connected with the N pole of diode D6 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 tie point of LM4431 reference circuits with resistance R11.
5. the accurate Contrary compensation power supply of a kind of manifold type based on constant current protection according to claim 4, is characterized in that, described RC filtered electrical routing resistance R3, and forms with the electric capacity C1 that resistance R3 is in parallel.
6. the accurate Contrary compensation power supply of a kind of manifold type based on constant current protection according to claim 5, it is characterized in that, described electric capacity C2, electric capacity C3 and electric capacity C4 are polar capacitor.
7. the accurate Contrary compensation power supply of a kind of manifold type based on constant current protection according to claim 6, it is characterized in that, described protect IC U1 is AP3843CP integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317217.XA CN104901539A (en) | 2014-11-28 | 2015-06-10 | Coupled precise reverse compensating power supply based on constant current protection |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714283.6A CN104467418A (en) | 2014-11-28 | 2014-11-28 | Precise inverse comprehension power source based on logic protection emitter-coupled type circuit |
| CN2014107142836 | 2014-11-28 | ||
| CN201510317217.XA CN104901539A (en) | 2014-11-28 | 2015-06-10 | Coupled precise reverse compensating power supply based on constant current protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104901539A true CN104901539A (en) | 2015-09-09 |
Family
ID=52912941
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410714283.6A Pending CN104467418A (en) | 2014-11-28 | 2014-11-28 | Precise inverse comprehension power source based on logic protection emitter-coupled type circuit |
| CN201510317217.XA Pending CN104901539A (en) | 2014-11-28 | 2015-06-10 | Coupled precise reverse compensating power supply based on constant current protection |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410714283.6A Pending CN104467418A (en) | 2014-11-28 | 2014-11-28 | Precise inverse comprehension power source based on logic protection emitter-coupled type circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104467418A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467418A (en) * | 2014-11-28 | 2015-03-25 | 成都创图科技有限公司 | Precise inverse comprehension power source based on logic protection emitter-coupled type circuit |
| CN104398243A (en) * | 2014-11-28 | 2015-03-11 | 成都措普科技有限公司 | Logic protection emitter coupled precision reverse current source temperature measuring system |
| CN104820106A (en) * | 2015-05-06 | 2015-08-05 | 成都诚邦动力测试仪器有限公司 | Motor speed test system based on reverse current source |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477385A (en) * | 2008-12-10 | 2009-07-08 | 广州南科集成电子有限公司 | Constant-current constant-voltage circuit |
| CN104467418A (en) * | 2014-11-28 | 2015-03-25 | 成都创图科技有限公司 | Precise inverse comprehension power source based on logic protection emitter-coupled type circuit |
| US20150117891A1 (en) * | 2013-10-30 | 2015-04-30 | Samsung Electronics Co., Ltd | Power supply apparatus, image forming apparatus having the same, and method thereof |
-
2014
- 2014-11-28 CN CN201410714283.6A patent/CN104467418A/en active Pending
-
2015
- 2015-06-10 CN CN201510317217.XA patent/CN104901539A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477385A (en) * | 2008-12-10 | 2009-07-08 | 广州南科集成电子有限公司 | Constant-current constant-voltage circuit |
| US20150117891A1 (en) * | 2013-10-30 | 2015-04-30 | Samsung Electronics Co., Ltd | Power supply apparatus, image forming apparatus having the same, and method thereof |
| CN104467418A (en) * | 2014-11-28 | 2015-03-25 | 成都创图科技有限公司 | Precise inverse comprehension power source based on logic protection emitter-coupled type circuit |
Non-Patent Citations (1)
| Title |
|---|
| 宋太颖: ""海信HLL2637WC板电路原理与检修"", 《电子报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104467418A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209462021U (en) | Anti-reverse connection anti-overvoltage protection device, earphone and USB charging device | |
| CN104901539A (en) | Coupled precise reverse compensating power supply based on constant current protection | |
| CN211123821U (en) | A Linear Voltage Regulator Circuit Applied to Electric Meters and Terminals | |
| CN204205932U (en) | Anti-high voltage surge soft starting circuit | |
| CN104460808A (en) | Light beam excitation type precise reverse-bias adjustable current source | |
| CN105958831A (en) | Voltage regulation circuit based bipolar switch voltage-stabilizing power supply | |
| CN104467417A (en) | Logic protection emitter coupling bias adjustable current source | |
| CN206060247U (en) | New type of current adjustable band defencive function charging circuit | |
| CN203289075U (en) | Overvoltage protection circuit | |
| CN204189060U (en) | A kind of novel compensation power supply of being powered by accurate inverse current source | |
| CN204103467U (en) | A kind of protective circuit of automobile instrument circuit | |
| CN203522162U (en) | Undervoltage protection and overcurrent protection circuit | |
| CN204668922U (en) | A kind of module power supply short-circuit protective circuit | |
| CN204334324U (en) | A kind of accurate Contrary compensation power supply of logic-based protection emitter-base bandgap grading manifold type circuit | |
| CN204190617U (en) | A kind of temperature-compensating stabilized voltage power supply | |
| CN204190618U (en) | A kind of biased adjustable temperature offset supply | |
| CN202997654U (en) | Constant-voltage constant-current charging circuit | |
| CN204189059U (en) | A kind of accurate reverse bias adjustable current source | |
| CN204334323U (en) | A kind of biased adjustable current source of virtual protection emitter-base bandgap grading manifold type | |
| CN104459234A (en) | Novel bias-adjustable temperature compensation power source | |
| CN204314350U (en) | A kind of novel biased adjustable temperature offset supply | |
| CN204314763U (en) | The accurate reverse bias adjustable current source of a kind of beam excitation formula | |
| CN214281703U (en) | Constant voltage and constant current circuit for oven | |
| CN205509603U (en) | Double T L431 voltage monitoring circuit | |
| CN204190619U (en) | A kind of temp. compensation type power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150909 |