CN204316801U - A kind of switch power amplifies trigger-type blue LED lamp drain drives system - Google Patents
A kind of switch power amplifies trigger-type blue LED lamp drain drives system Download PDFInfo
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- CN204316801U CN204316801U CN201420716241.1U CN201420716241U CN204316801U CN 204316801 U CN204316801 U CN 204316801U CN 201420716241 U CN201420716241 U CN 201420716241U CN 204316801 U CN204316801 U CN 204316801U
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Abstract
The utility model discloses a kind of switch power and amplify trigger-type blue LED lamp drain drives system, primarily of partial pressure switch circuit, the control switch circuit be connected with the output of partial pressure switch circuit, the non-linear circuits for triggering be connected with the output of control switch circuit, and the switch power amplifying circuit to be connected with the output of non-linear circuits for triggering forms, it is characterized in that, be also provided with beam excitation formula logic amplifying circuit at the output of switch power amplifying circuit.The utility model initiative by non-linear circuits for triggering and switch power amplifying circuit conbined usage, non-linear circuits for triggering nonlinear characteristic can not only be guaranteed, and safe and reliable trigger voltage can also be provided for switch power amplifying circuit, significantly can reduce the interference of electromagnetic pulse, guarantee the stable performance of power amplification circuit.
Description
Technical field
The utility model relates to a kind of LED drive circuit, specifically refers to that a kind of switch power amplifies trigger-type blue LED lamp drain drives system.
Background technology
At present, because LED has, energy consumption is low, the feature such as long service life and safety and environmental protection, and it has become one of main product of people's life lighting.Because LED is different from traditional incandescent lamp, therefore its needs are driven by special drive circuit.But, the widely used drain drives circuit of current people due to the irrationality of its project organization, defects such as result in current drain drives circuit and have that energy consumption is higher, current noise comparatively large and start-up time is longer.
Utility model content
The purpose of this utility model is the defect that energy consumption is higher, current noise is comparatively large and start-up time is longer overcoming the existence of current drain drives circuit, a kind of reasonable in design is provided, can effectively reduce energy consumption and current noise, a kind of switch power obviously shortening start-up time amplifies trigger-type blue LED lamp drain drives system.
The purpose of this utility model is achieved through the following technical solutions: a kind of switch power amplifies trigger-type blue LED lamp drain drives system, primarily of partial pressure switch circuit, the control switch circuit be connected with the output of partial pressure switch circuit, the non-linear circuits for triggering be connected with the output of control switch circuit, and the switch power amplifying circuit be connected with the output of non-linear circuits for triggering forms.Meanwhile, beam excitation formula logic amplifying circuit is also provided with at the output of switch power amplifying circuit, described switch power amplifying circuit is by power amplifier P1, power amplifier P2, power amplifier P3, be serially connected in the resistance R9 between the output of power amplifier P1 and negative input and electric capacity C2, be serially connected in the resistance R10 between the output of power amplifier P2 and electrode input end and electric capacity C3, base stage is connected with the output of power amplifier P1, the triode Q7 that collector electrode is connected with the electrode input end of power amplifier P3 after resistance R20, base stage is connected with the emitter of triode Q7, the triode Q8 that collector electrode is connected with the negative input of power amplifier P3 after resistance R19, base stage is connected with the output of power amplifier P2 after resistance R11, the triode Q9 that collector electrode is connected with the base stage of triode Q8 after resistance R14, positive pole is connected with the negative input of power amplifier P3, and negative pole is connected with the emitter of triode Q8 and the electric capacity C8 of ground connection, the electric capacity C4 be in parallel with resistance R11, one end is connected with the base stage of triode Q9, the resistance R12 of the external-4V voltage of the other end, one end is connected with the emitter of triode Q9, the resistance R13 of the external-4V voltage of the other end, the electric capacity C7 be in parallel with resistance R13, and N pole is connected with the collector electrode of triode Q7, the diode D3 of the extremely external-4V voltage of P forms, the electrode input end of described power amplifier P1 is connected with the output of non-linear circuits for triggering respectively with the negative input of power amplifier P2, and the negative input of this power amplifier P1 is also connected with the electrode input end of power amplifier P2.
Described beam excitation formula logic amplifying circuit is primarily of power amplifier P4, NAND gate IC1, NAND gate IC2, NAND gate IC3, negative pole is connected with the electrode input end of power amplifier P4, the polar capacitor C9 of positive pole ground connection after optical diode D4, one end is connected with the positive pole of polar capacitor C9, the resistance R20 of other end ground connection after diode D5, positive pole is connected with the tie point of diode D5 with resistance R20, the polar capacitor C11 of minus earth, one end is connected with the negative input of NAND gate IC1, the resistance R21 that the other end is connected with the negative input of power amplifier P4, be serially connected in the resistance R22 between the negative input of power amplifier P4 and output, one end is connected with the output of NAND gate IC1, the resistance R23 that the other end is connected with the negative input of NAND gate IC3, positive pole is connected with the output of NAND gate IC2, the electric capacity C10 that negative pole is connected with the negative input of NAND gate IC3, and one end is connected with the positive pole of polar capacitor C11, the resistance R24 that the other end is connected with the negative input of NAND gate IC2 forms, the electrode input end of described NAND gate IC1 is connected with the negative input of power amplifier P4, and its output is connected with the electrode input end of NAND gate IC2, and the electrode input end of NAND gate IC3 is connected with the output of power amplifier P4, the positive pole of described polar capacitor C11 is then connected with the emitter of triode Q9.
Further, described non-linear circuits for triggering are by triode Q5, triode Q6, one end is connected with the collector electrode of triode Q5, the resistance R15 that the other end is connected with the base stage of triode Q6 after resistance R16, one end is connected with the collector electrode of triode Q6, the resistance R18 that the other end is connected with the base stage of triode Q5 after resistance R17, be serially connected in the electric capacity C5 between the collector electrode of triode Q5 and the base stage of triode Q6, be serially connected in the electric capacity C6 between the collector electrode of triode Q6 and the base stage of triode Q5, N pole is connected with the tie point of resistance R16 with resistance R15, the diode D2 that P pole is then connected with the collector electrode of triode Q6, and N pole is connected with the tie point of resistance R18 with resistance R17, the diode D1 that P pole is connected with the collector electrode of triode Q5 forms, the electrode input end of described power amplifier P1 is connected with the emitter of triode Q5, and the negative input of power amplifier P2 is connected with the emitter of triode Q6, the P pole of described diode D1 is connected with the output of control switch circuit respectively with the P pole of diode D2.
Described control switch circuit is by triode Q3, triode Q4, be serially connected in the electric capacity C1 between the collector electrode of triode Q3 and emitter, be serially connected in the resistance R8 between the base stage of triode Q4 and emitter, and the resistance R7 that one end is connected with the base stage of triode Q4, the other end is connected with partial pressure switch circuit forms; The emitter of described triode Q3 is connected with the collector electrode of triode Q4, and its base stage is then connected with partial pressure switch circuit; The collector electrode of described triode Q3 is connected with the P pole of diode D1, and the emitter of triode Q4 is then connected with the P pole of diode D2.
Described partial pressure switch circuit is by triode Q1, triode Q2, be serially connected in the resistance R2 between the base stage of triode Q1 and emitter, be serially connected in the resistance R4 between the base stage of triode Q2 and emitter, be serially connected in the resistance R5 between the collector electrode of triode Q1 and the base stage of triode Q3, the resistance R1 that one end is connected with the base stage of triode Q1, the other end is connected with the base stage of triode Q2 after resistance R3, and the resistance R6 that one end is connected with the collector electrode of triode Q2, the other end is connected with the tie point of resistance R3 with resistance R1 forms; The collector electrode of described triode Q2 is then connected with resistance R7, is all connected with the emitter of triode Q4 after the emitter of triode Q1 is connected with the emitter of triode Q2; Resistance R1 is also connected with the collector electrode of triode Q3 with the tie point of resistance R3.
The utility model comparatively prior art is compared, and has the following advantages and beneficial effect:
(1) not only overall structure is comparatively simple for the utility model, and its power consumption is lower, is only 1/5 of traditional drains drive circuit start-up time its start-up time.
(2) the utility model effectively can avoid external electromagnetic interference, can reduce current noise significantly.
(3) the utility model initiative by non-linear circuits for triggering and switch power amplifying circuit conbined usage, non-linear circuits for triggering nonlinear characteristic can not only be guaranteed, and safe and reliable trigger voltage can also be provided for switch power amplifying circuit, significantly can reduce the interference of electromagnetic pulse, guarantee the stable performance of switch power amplifying circuit.
(4) switch power amplifying circuit of the present utility model has switch control functions, automatically can open and rupturing duty enlarging function according to the input signal of outside, can guarantee that himself can not damage because of foreign current sudden change, thus guarantee its useful life.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, the utility model mainly includes partial pressure switch circuit, the control switch circuit be connected with the output of partial pressure switch circuit, the non-linear circuits for triggering that are connected with the output of control switch circuit, the switch power amplifying circuit be connected with the output of non-linear circuits for triggering, and this five part of beam excitation formula logic amplifying circuit be connected with the output of switch power amplifying circuit.
As shown in Figure 1, this switch power amplifying circuit by power amplifier P1, power amplifier P2, power amplifier P3, triode Q7, triode Q8, triode Q9, resistance R9, electric capacity C2, resistance R10, electric capacity C3, resistance R11, resistance R12, resistance R13, resistance R14, resistance R19, resistance R20, electric capacity C4, electric capacity C7, electric capacity C8 and diode D3 form.
During connection, between the output that resistance R9 and electric capacity C2 is all serially connected in power amplifier P1 and negative input, between the output that resistance R10 and electric capacity C3 is then all serially connected in power amplifier P2 and electrode input end.That is, resistance R9 and electric capacity C2 forms a RC filter circuit, and resistance R10 and electric capacity C3 forms a RC filter circuit.Meanwhile, when the RC filter circuit be made up of resistance R9 and electric capacity C2 is serially connected between the output of power amplifier P1 and negative input, it can also use as feedback circuit for power amplifier P1; In like manner, when the RC filter circuit be made up of resistance R10 and electric capacity C3 is serially connected between the electrode input end of power amplifier P2 and output, it can also use as feedback circuit for power amplifier P2.The negative input of this power amplifier P1 must be connected with the electrode input end of power amplifier P2, to guarantee that power amplifier P1 and power amplifier P2 can normally use.
The base stage of described triode Q7 is connected with the output of power amplifier P1, and its collector electrode is being connected with the electrode input end of power amplifier P3 after resistance R20, and its emitter is then connected with the base stage of triode Q8; The base stage of triode Q8 is then connected with the collector electrode of triode Q9 after resistance R14, and the collector electrode of triode Q8 is then connected with the negative input of power amplifier P3 after resistance R19.Meanwhile, the positive pole of electric capacity C8 is connected with the negative input of power amplifier P3, and its negative pole is then connected with the emitter of triode Q8 and ground connection.
The base stage of triode Q9 is connected with the output of power amplifier P2 after resistance R11, and electric capacity C4 and resistance R11 is in parallel, and one end of resistance R12 is connected with the base stage of triode Q9, the external-4V voltage of the other end.Meanwhile, one end of resistance R13 is connected with the emitter of triode Q9, and its other end is external-4V voltage too, and electric capacity C7 is then in parallel with resistance R13.
The N pole of described diode D3 is connected with the collector electrode of triode Q7, the voltage of the extremely external-4V of its P, so that by this diode D3 for triode Q7 provides bias voltage.Meanwhile, the collector electrode of triode Q8 then needs the voltage of external+10V, to provide enough input voltages for power amplifier P3.
Described beam excitation formula logic amplifying circuit is then primarily of power amplifier P4, NAND gate IC1, NAND gate IC2, NAND gate IC3, negative pole is connected with the electrode input end of power amplifier P4, the polar capacitor C9 of positive pole ground connection after optical diode D4, one end is connected with the positive pole of polar capacitor C9, the resistance R20 of other end ground connection after diode D5, positive pole is connected with the tie point of diode D5 with resistance R20, the polar capacitor C11 of minus earth, one end is connected with the negative input of NAND gate IC1, the resistance R21 that the other end is connected with the negative input of power amplifier P4, be serially connected in the resistance R22 between the negative input of power amplifier P4 and output, one end is connected with the output of NAND gate IC1, the resistance R23 that the other end is connected with the negative input of NAND gate IC3, positive pole is connected with the output of NAND gate IC2, the electric capacity C10 that negative pole is connected with the negative input of NAND gate IC3, and one end is connected with the positive pole of polar capacitor C11, the resistance R24 that the other end is connected with the negative input of NAND gate IC2 forms.
The electrode input end of described NAND gate IC1 is connected with the negative input of power amplifier P4, and its output is connected with the electrode input end of NAND gate IC2, and the electrode input end of NAND gate IC3 is connected with the output of power amplifier P4; The positive pole of described polar capacitor C11 is then connected with the emitter of triode Q9.
Described non-linear circuits for triggering then by triode Q5, triode Q6, resistance R15, resistance R16, resistance R17, resistance R18, electric capacity C5, electric capacity C6, and diode D1 and diode D2 forms.Wherein, one end of resistance R15 is connected with the collector electrode of triode Q5, and its other end is connected with the base stage of triode Q6 after resistance R16; One end of resistance R18 is connected with the collector electrode of triode Q6, and its other end is connected with the base stage of triode Q5 after resistance R17; Electric capacity C5 is serially connected between the collector electrode of triode Q5 and the base stage of triode Q6, and electric capacity C6 is then serially connected between the collector electrode of triode Q6 and the base stage of triode Q5.
For guaranteeing effect, the negative pole of this electric capacity C5 must be connected with the collector electrode of triode Q5, and its positive pole then will be connected with the base stage of triode Q6; The positive pole of electric capacity C6 then will be connected with the collector electrode of triode Q6, and its negative pole is then connected with the base stage of triode Q5.Meanwhile, this electric capacity C5 and electric capacity C6 is all preferential is realized by patch capacitor.
The N pole of diode D1 is connected with the tie point of resistance R18 with resistance R17, and its P pole is connected with the collector electrode of triode Q5; The N pole of diode D2 is connected with the tie point of resistance R16 with resistance R15, and its P pole is then connected with the collector electrode of triode Q6.Meanwhile, the emitter of this triode Q5 will be connected with the electrode input end of power amplifier P1, and the emitter of triode Q6 then will be connected with the negative input of power amplifier P2.
Described control switch circuit is then by triode Q3, triode Q4, be serially connected in the electric capacity C1 between the collector electrode of triode Q3 and emitter, be serially connected in the resistance R8 between the base stage of triode Q4 and emitter, and the resistance R7 that one end is connected with the base stage of triode Q4, the other end is connected with partial pressure switch circuit forms.
Wherein, the emitter of this triode Q3 will be connected with the collector electrode of triode Q4, and its base stage is then connected with partial pressure switch circuit.The collector electrode of described triode Q3 is connected with the collector electrode of triode Q5, and the emitter of triode Q4 is then connected with the collector electrode of triode Q6.
Described partial pressure switch circuit by triode Q1, triode Q2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, and resistance R6 forms.During connection, between the base stage that resistance R2 is serially connected in triode Q1 and emitter; Between the base stage that resistance R4 is serially connected in triode Q2 and emitter, resistance R5 is then serially connected between the collector electrode of triode Q1 and the base stage of triode Q3.
Meanwhile, one end of resistance R1 is connected with the base stage of triode Q1, and its other end is connected with the base stage of triode Q2 after resistance R3.One end of resistance R6 is connected with the collector electrode of triode Q2, and its other end is connected with the tie point of resistance R3 with resistance R1.
The collector electrode of triode Q2 will be connected with resistance R7, and namely this triode Q2 is connected with the base stage of triode Q4 by resistance R7.Meanwhile, the emitter of triode Q1 is also connected with the emitter of triode Q2, and the emitter of triode Q1 is also all connected with the negative input of power amplifier P2 with the emitter of triode Q2.The collector electrode of triode Q3 is then connected with the tie point of resistance R3 with resistance R1.
For guaranteeing result of use of the present utility model, in the utility model, the resistance of resistance R1 is identical with the resistance of resistance R2, is 15K Ω; The resistance of resistance R3 is identical with the resistance of resistance R4, is 20 K Ω.Resistance R5, resistance R6, resistance R7 are identical with the resistance of resistance R8, are 10 K Ω.Wherein, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5 and electric capacity C6 are patch capacitor, and electric capacity C1 and electric capacity C7 is then electrochemical capacitor.And the resistance of resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17 and resistance R18 is 15 K Ω; The resistance of resistance R19, resistance R20 is then 5 K Ω.
As mentioned above, just the utility model can well be realized.
Claims (4)
1. a switch power amplifies trigger-type blue LED lamp drain drives system, primarily of partial pressure switch circuit, the control switch circuit be connected with the output of partial pressure switch circuit, the non-linear circuits for triggering be connected with the output of control switch circuit, and the switch power amplifying circuit to be connected with the output of non-linear circuits for triggering forms, it is characterized in that, be also provided with beam excitation formula logic amplifying circuit at the output of switch power amplifying circuit, described switch power amplifying circuit is by power amplifier P1, power amplifier P2, power amplifier P3, be serially connected in the resistance R9 between the output of power amplifier P1 and negative input and electric capacity C2, be serially connected in the resistance R10 between the output of power amplifier P2 and electrode input end and electric capacity C3, base stage is connected with the output of power amplifier P1, the triode Q7 that collector electrode is connected with the electrode input end of power amplifier P3 after resistance R20, base stage is connected with the emitter of triode Q7, the triode Q8 that collector electrode is connected with the negative input of power amplifier P3 after resistance R19, base stage is connected with the output of power amplifier P2 after resistance R11, the triode Q9 that collector electrode is connected with the base stage of triode Q8 after resistance R14, positive pole is connected with the negative input of power amplifier P3, and negative pole is connected with the emitter of triode Q8 and the electric capacity C8 of ground connection, the electric capacity C4 be in parallel with resistance R11, one end is connected with the base stage of triode Q9, the resistance R12 of the external-4V voltage of the other end, one end is connected with the emitter of triode Q9, the resistance R13 of the external-4V voltage of the other end, the electric capacity C7 be in parallel with resistance R13, and N pole is connected with the collector electrode of triode Q7, the diode D3 of the extremely external-4V voltage of P forms, the electrode input end of described power amplifier P1 is connected with the output of non-linear circuits for triggering respectively with the negative input of power amplifier P2, and the negative input of this power amplifier P1 is also connected with the electrode input end of power amplifier P2, described beam excitation formula logic amplifying circuit is primarily of power amplifier P4, NAND gate IC1, NAND gate IC2, NAND gate IC3, negative pole is connected with the electrode input end of power amplifier P4, the polar capacitor C9 of positive pole ground connection after optical diode D4, one end is connected with the positive pole of polar capacitor C9, the resistance R20 of other end ground connection after diode D5, positive pole is connected with the tie point of diode D5 with resistance R20, the polar capacitor C11 of minus earth, one end is connected with the negative input of NAND gate IC1, the resistance R21 that the other end is connected with the negative input of power amplifier P4, be serially connected in the resistance R22 between the negative input of power amplifier P4 and output, one end is connected with the output of NAND gate IC1, the resistance R23 that the other end is connected with the negative input of NAND gate IC3, positive pole is connected with the output of NAND gate IC2, the electric capacity C10 that negative pole is connected with the negative input of NAND gate IC3, and one end is connected with the positive pole of polar capacitor C11, the resistance R24 that the other end is connected with the negative input of NAND gate IC2 forms, the electrode input end of described NAND gate IC1 is connected with the negative input of power amplifier P4, and its output is connected with the electrode input end of NAND gate IC2, and the electrode input end of NAND gate IC3 is connected with the output of power amplifier P4, the positive pole of described polar capacitor C11 is then connected with the emitter of triode Q9.
2. a kind of switch power according to claim 1 amplifies trigger-type blue LED lamp drain drives system, it is characterized in that, described non-linear circuits for triggering are by triode Q5, triode Q6, one end is connected with the collector electrode of triode Q5, the resistance R15 that the other end is connected with the base stage of triode Q6 after resistance R16, one end is connected with the collector electrode of triode Q6, the resistance R18 that the other end is connected with the base stage of triode Q5 after resistance R17, be serially connected in the electric capacity C5 between the collector electrode of triode Q5 and the base stage of triode Q6, be serially connected in the electric capacity C6 between the collector electrode of triode Q6 and the base stage of triode Q5, N pole is connected with the tie point of resistance R16 with resistance R15, the diode D2 that P pole is then connected with the collector electrode of triode Q6, and N pole is connected with the tie point of resistance R18 with resistance R17, the diode D1 that P pole is connected with the collector electrode of triode Q5 forms, the electrode input end of described power amplifier P1 is connected with the emitter of triode Q5, and the negative input of power amplifier P2 is connected with the emitter of triode Q6, the P pole of described diode D1 is connected with the output of control switch circuit respectively with the P pole of diode D2.
3. a kind of switch power according to claim 2 amplifies trigger-type blue LED lamp drain drives system, it is characterized in that, described control switch circuit is by triode Q3, triode Q4, be serially connected in the electric capacity C1 between the collector electrode of triode Q3 and emitter, be serially connected in the resistance R8 between the base stage of triode Q4 and emitter, and the resistance R7 that one end is connected with the base stage of triode Q4, the other end is connected with partial pressure switch circuit forms; The emitter of described triode Q3 is connected with the collector electrode of triode Q4, and its base stage is then connected with partial pressure switch circuit; The collector electrode of described triode Q3 is connected with the P pole of diode D1, and the emitter of triode Q4 is then connected with the P pole of diode D2.
4. a kind of switch power according to claim 3 amplifies trigger-type blue LED lamp drain drives system, it is characterized in that, described partial pressure switch circuit is by triode Q1, triode Q2, be serially connected in the resistance R2 between the base stage of triode Q1 and emitter, be serially connected in the resistance R4 between the base stage of triode Q2 and emitter, be serially connected in the resistance R5 between the collector electrode of triode Q1 and the base stage of triode Q3, one end is connected with the base stage of triode Q1, the resistance R1 that the other end is connected with the base stage of triode Q2 after resistance R3, and one end is connected with the collector electrode of triode Q2, the resistance R6 that the other end is connected with the tie point of resistance R3 with resistance R1 forms, the collector electrode of described triode Q2 is then connected with resistance R7, is all connected with the emitter of triode Q4 after the emitter of triode Q1 is connected with the emitter of triode Q2, resistance R1 is also connected with the collector electrode of triode Q3 with the tie point of resistance R3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716241.1U CN204316801U (en) | 2014-11-25 | 2014-11-25 | A kind of switch power amplifies trigger-type blue LED lamp drain drives system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716241.1U CN204316801U (en) | 2014-11-25 | 2014-11-25 | A kind of switch power amplifies trigger-type blue LED lamp drain drives system |
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| Publication Number | Publication Date |
|---|---|
| CN204316801U true CN204316801U (en) | 2015-05-06 |
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|---|---|---|---|
| CN201420716241.1U Expired - Fee Related CN204316801U (en) | 2014-11-25 | 2014-11-25 | A kind of switch power amplifies trigger-type blue LED lamp drain drives system |
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| CN (1) | CN204316801U (en) |
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Granted publication date: 20150506 Termination date: 20151125 |