CN104470080A - Logic control system based on switching power amplifying circuit - Google Patents
Logic control system based on switching power amplifying circuit Download PDFInfo
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- CN104470080A CN104470080A CN201410674885.3A CN201410674885A CN104470080A CN 104470080 A CN104470080 A CN 104470080A CN 201410674885 A CN201410674885 A CN 201410674885A CN 104470080 A CN104470080 A CN 104470080A
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Abstract
The invention discloses a logic control system based on a switching power amplifying circuit. The logic control system is characterized by being mainly composed of a NAND gate IC4, a NOT gate IC5, a NOT gate IC3, a first logic link, a second logic link and the switching power amplifying circuit; the input end of the NOT gate IC5 is connected with the output end of the NAND gate IC4; the output end of the NOT gate IC3 is connected with the input end of the negative electrode of the NAND gate IC4; the first logic link and the second logic link and the second logic link are connected with the input end of the positive electrode of the NAND gate IC4; the switching power amplifying circuit is connected with the first logic link, the second logic link and the output end of the NOT gate IC5; the switching power amplifying circuit is mainly composed of a power amplifier P1, a power amplifier P2, a power amplifier P3, a resistor R1, a capacitor and the like; the resistor R1 is connected in series between the output end of the power amplifier P1 and the input end of the negative electrode. According to the logic control system, the characteristic of the stability of the switching power amplifiers is fully utilized, so that the switching power amplifiers, the first logic link and the second logic link are well combined together; accordingly, the stability of logic control signals can be ensured, and the logic control system is suitable for environments on different occasions.
Description
Technical field
The present invention relates to a kind of logic control system, specifically refer to a kind of logic control system based on switch power amplifying circuit.
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, its needs are driven by special drive circuit, have therefore just occurred the protection system for preventing drive system from disturbing from inner or outside unfavorable factor miscellaneous on the market.
Logic control circuit is an important control section in LED protection system, and whether the speed of its speed of service and stable performance directly determine the scope of application and the performance quality of LED protection system.But the structure of these logic control circuits is all comparatively complicated at present, and not only its energy consumption is higher, and its speed of service is comparatively slow, well can not embody the advantage of quick, the low energy consumption of logic control.
Summary of the invention
The object of the invention is to overcome the logic control circuit complex structure of current LED protection system, energy consumption is higher, the speed of service is slower defect, a kind of logic control system based on switch power amplifying circuit is provided.
Object of the present invention is achieved through the following technical solutions: based on the logic control system of switch power amplifying circuit, primarily of NAND gate IC4, the not gate IC5 that input is connected with the output of NAND gate IC4, the not gate IC3 that output is connected with the negative input of NAND gate IC4, the first logical links be connected with the electrode input end of NAND gate IC4 and the second logical links, and with the first logical links, the switch power amplifying circuit that the output of the second logical links and not gate IC5 is connected forms, it is characterized in that, described switch power amplifying circuit is primarily of power amplifier P1, power amplifier P2, power amplifier P3, be serially connected in the resistance R1 between the output of power amplifier P1 and negative input and electric capacity C1, be serially connected in the resistance R2 between the output of power amplifier P2 and electrode input end and electric capacity C2, base stage is connected with the output of power amplifier P1, the triode Q1 that collector electrode is connected with the electrode input end of power amplifier P3 after resistance R3, base stage is connected with the emitter of triode Q1, the triode Q2 that collector electrode is connected with the negative input of power amplifier P3 after resistance R4, base stage is connected with the output of power amplifier P2 after resistance R6, the triode Q3 that collector electrode is connected with the base stage of triode Q2 after resistance R5, positive pole is connected with the negative input of power amplifier P3, and negative pole is connected with the emitter of triode Q2 and the electric capacity C4 of ground connection, the electric capacity C3 be in parallel with resistance R6, one end is connected with the base stage of triode Q3, the resistance R7 of the external-4V voltage of the other end, one end is connected with the emitter of triode Q3, the resistance R8 of the external-4V voltage of the other end, the electric capacity C5 be in parallel with resistance R8, and N pole is connected with the collector electrode of triode Q1, the diode D1 of the extremely external-4V voltage of P forms, the output of described first logical links is connected with the electrode input end of power amplifier P1, the output of the second logical links is connected with the negative input of power amplifier P2, and the output of not gate IC5 is then connected with the electrode input end of power amplifier P2 with the negative input of power amplifier P1 respectively.
Further, described first logical links is by not gate IC1, the not gate IC2 that the output of input NAND gate IC1 is connected, output is connected with the electrode input end of NAND gate IC4 in turn after resistance R12, diode D4, the input of P pole NAND gate IC1 is connected, N pole in turn through the diode D2 that the input of resistance R10 NAND gate IC1 after electric capacity C6 is connected, and forms with the resistance R9 that diode D2 is in parallel; The tie point ground connection of described electric capacity C6 and resistance R10, and the output of not gate IC2 is connected with the electrode input end of power amplifier P1.
The second described logical links is by XOR gate IC6, the diode D5 that P pole is connected with the electrode input end of NAND gate IC4, N pole is connected with the first input end of XOR gate IC6, the diode D3 that the input of N pole NAND gate IC3 is connected, P pole is connected with the first input end of XOR gate IC6 after diode D6, the resistance R11 be in parallel with diode D3, and positive pole is connected with the N pole of diode D3, the electric capacity C7 of minus earth forms; Be connected with the electrode input end of power amplifier P2 with the negative input of power amplifier P1 respectively after the output of the second input NAND gate IC5 of described XOR gate IC6 is connected, the output of XOR gate IC6 is then connected with the negative input of power amplifier P2 again.
For guaranteeing result of use of the present invention, described electric capacity C1, electric capacity C2, electric capacity C6 and electric capacity C7 are patch capacitor; Described electric capacity C3, electric capacity C4 and electric capacity C5 are electrochemical capacitor; The resistance of described resistance R1, resistance R2 is 10K Ω, and the resistance of resistance R3, resistance R4, resistance R5, resistance R6, resistance R7 and resistance R8 is 20K Ω, and the resistance of resistance R9, resistance R10, resistance R11 and resistance R12 is 15K Ω.
The present invention comparatively prior art compares, and 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 adopts logic electronic components to realize its logic control function completely, and therefore its energy consumption is very low, fast operation.
(3) the present invention make use of the stability characteristic (quality) of switch power amplifier fully, itself and the first logical links and the second logical links is well combined, thus can guarantee the stability of logic control signal, go for different field settings.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, system of the present invention is primarily of NAND gate IC4, the not gate IC5 that input is connected with the output of NAND gate IC4, the not gate IC3 that output is connected with the negative input of NAND gate IC4, the first logical links be connected with the electrode input end of NAND gate IC4 and the second logical links, and the switch power amplifying circuit be connected with the output of the first logical links, the second logical links and not gate IC5 forms.
Wherein, this switch power amplifying circuit is primarily of power amplifier P1, power amplifier P2, power amplifier P3, triode Q1, triode Q2, triode Q3, be serially connected in the one-level RC filter circuit between the output of power amplifier P1 and negative input, be serially connected in the secondary RC filter circuit between the output of power amplifier P2 and electrode input end, and resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electric capacity C3, electric capacity C4, electric capacity C5 and diode D1 form.
Described one-level RC filtered electrical routing resistance R1 and electric capacity C1 is formed in parallel, namely between resistance R1 and the electric capacity C1 negative input that is all serially connected in power amplifier P1 and output; Described secondary RC filter circuit is then formed in parallel by resistance R2 and electric capacity C2, namely between resistance R2 and the electric capacity C2 electrode input end that is all serially connected in power amplifier P2 and output.Meanwhile, the negative input of power amplifier P1 is also connected with the electrode input end of power amplifier P2.
The base stage of triode Q1 is connected with the output of power amplifier P1, and its collector electrode is connected with the electrode input end of power amplifier P3 after resistance R3, and its emitter is then connected with the base stage of triode Q2; The collector electrode of triode Q2 is connected with the negative input of power amplifier P3 after resistance R4, meanwhile, and the collector electrode also external+10V voltage of this triode Q2.
The base stage of triode Q3 is connected with the output of power amplifier P2 after resistance R6, and its collector electrode is then connected with the base stage of triode Q2 after resistance R5.Electric capacity C3 is then in parallel with resistance R6, and for guaranteeing effect, this electric capacity C3 preferentially adopts electrochemical capacitor to realize.During connection, the negative pole of electric capacity C3 is connected with the base stage of triode Q3, and its positive pole is then connected with the output of power amplifier P2.The positive pole of electric capacity C4 is connected with the negative input of power amplifier P3, and its negative pole is then connected with the emitter of triode Q2.Meanwhile, the negative pole of this electric capacity C4 and the equal ground connection of emitter of triode Q2.
One end of resistance R7 is connected with the base stage of triode Q3, the voltage of the external-4V of its other end; And one end of resistance R8 is connected with the emitter of triode Q3, the voltage of its other end then external equally-4V.Electric capacity C5 is then in parallel with resistance R8.Equally, described electric capacity C4 and electric capacity C5 also all adopts electrochemical capacitor to realize.Meanwhile, the N pole of described diode D1 is connected with the collector electrode of triode Q1, and its P pole is at the voltage of external-4V.
For guaranteeing the normal operation of power amplifier P1 and power amplifier P2, this electric capacity C1 and electric capacity C2 all preferentially adopts patch capacitor to realize.And the resistance of resistance R1, resistance R2 is 10K Ω, the resistance of resistance R3, resistance R4, resistance R5, resistance R6, resistance R7 and resistance R8 is 20K Ω.
The first described logical links is made up of not gate IC1, not gate IC2, resistance R12, diode D4, resistance R9, resistance R10, electric capacity C6 and diode D2.During connection, the output of the input NAND gate IC1 of not gate IC2 is connected, and its output is then connected with the electrode input end of NAND gate IC4 after diode D4 through resistance R12 in turn.Meanwhile, the output of this not gate IC2 is also connected with the electrode input end of power amplifier P1.
The input of the P pole NAND gate IC1 of described diode D2 is connected, its N pole is connected through the input of resistance R10 NAND gate IC1 after electric capacity C6 in turn, namely needs in turn to form an electric loop with the P pole of diode D2 after resistance R10 and electric capacity C6 from the N pole of diode D2.Resistance R9 is then in parallel with diode D2.Meanwhile, the tie point ground connection of described electric capacity C6 and resistance R10, the output that the N pole of diode D2 forms an output CT1, power amplifier P3 of the present invention then forms the 3rd output CT3 of the present invention.
The second described logical links is made up of XOR gate IC6, diode D5, diode D6, diode D3, resistance R11 and electric capacity C7.During connection, the P pole of diode D5 is connected with the electrode input end of NAND gate IC4, and its N pole is connected with the first input end of XOR gate IC6.The input of the N pole NAND gate IC3 of diode D3 is connected, and its P pole then forms second output CT2 of the present invention, and resistance R11 will be in parallel with diode D3.
The positive pole of electric capacity C7 is connected with the N pole of diode D3, its minus earth; The N pole of diode D6 is connected with the first input end of XOR gate IC6, and its P pole is then connected with the P pole of diode D3.Simultaneously, be connected with the electrode input end of power amplifier P2 with the negative input of power amplifier P1 respectively after the output of the second input NAND gate IC5 of XOR gate IC6 is connected, the output of XOR gate IC6 is then connected with the negative input of power amplifier P2 again.
For guaranteeing operational effect, this electric capacity C6 and electric capacity C7 is patch capacitor, and the resistance of resistance R9, resistance R10, resistance R11 and resistance R12 is 15K Ω.
As mentioned above, just the present invention can well be realized.
Claims (5)
1. based on the logic control system of switch power amplifying circuit, it is characterized in that, primarily of NAND gate IC4, the not gate IC5 that input is connected with the output of NAND gate IC4, the not gate IC3 that output is connected with the negative input of NAND gate IC4, the first logical links be connected with the electrode input end of NAND gate IC4 and the second logical links, and with the first logical links, the switch power amplifying circuit that the output of the second logical links and not gate IC5 is connected forms, it is characterized in that, described switch power amplifying circuit is primarily of power amplifier P1, power amplifier P2, power amplifier P3, be serially connected in the resistance R1 between the output of power amplifier P1 and negative input and electric capacity C1, be serially connected in the resistance R2 between the output of power amplifier P2 and electrode input end and electric capacity C2, base stage is connected with the output of power amplifier P1, the triode Q1 that collector electrode is connected with the electrode input end of power amplifier P3 after resistance R3, base stage is connected with the emitter of triode Q1, the triode Q2 that collector electrode is connected with the negative input of power amplifier P3 after resistance R4, base stage is connected with the output of power amplifier P2 after resistance R6, the triode Q3 that collector electrode is connected with the base stage of triode Q2 after resistance R5, positive pole is connected with the negative input of power amplifier P3, and negative pole is connected with the emitter of triode Q2 and the electric capacity C4 of ground connection, the electric capacity C3 be in parallel with resistance R6, one end is connected with the base stage of triode Q3, the resistance R7 of the external-4V voltage of the other end, one end is connected with the emitter of triode Q3, the resistance R8 of the external-4V voltage of the other end, the electric capacity C5 be in parallel with resistance R8, and N pole is connected with the collector electrode of triode Q1, the diode D1 of the extremely external-4V voltage of P forms, the output of described first logical links is connected with the electrode input end of power amplifier P1, the output of the second logical links is connected with the negative input of power amplifier P2, and the output of not gate IC5 is then connected with the electrode input end of power amplifier P2 with the negative input of power amplifier P1 respectively.
2. the logic control system based on switch power amplifying circuit according to claim 1, it is characterized in that, described first logical links is by not gate IC1, the not gate IC2 that the output of input NAND gate IC1 is connected, output is connected with the electrode input end of NAND gate IC4 in turn after resistance R12, diode D4, the input of P pole NAND gate IC1 is connected, N pole in turn through the diode D2 that the input of resistance R10 NAND gate IC1 after electric capacity C6 is connected, and forms with the resistance R9 that diode D2 is in parallel; The tie point ground connection of described electric capacity C6 and resistance R10, and the output of not gate IC2 is connected with the electrode input end of power amplifier P1.
3. the logic control system based on switch power amplifying circuit according to claim 2, it is characterized in that, the second described logical links is by XOR gate IC6, the diode D5 that P pole is connected with the electrode input end of NAND gate IC4, N pole is connected with the first input end of XOR gate IC6, the diode D3 that the input of N pole NAND gate IC3 is connected, P pole is connected with the first input end of XOR gate IC6 after diode D6, the resistance R11 be in parallel with diode D3, and positive pole is connected with the N pole of diode D3, the electric capacity C7 of minus earth forms; Be connected with the electrode input end of power amplifier P2 with the negative input of power amplifier P1 respectively after the output of the second input NAND gate IC5 of described XOR gate IC6 is connected, the output of XOR gate IC6 is then connected with the negative input of power amplifier P2 again.
4. the logic control system based on switch power amplifying circuit according to claim 3, is characterized in that, described electric capacity C1, electric capacity C2, electric capacity C6 and electric capacity C7 are patch capacitor; Described electric capacity C3, electric capacity C4 and electric capacity C5 are electrochemical capacitor.
5. the logic control system based on switch power amplifying circuit according to claim 4, it is characterized in that, the resistance of described resistance R1, resistance R2 is 10K Ω, the resistance of resistance R3, resistance R4, resistance R5, resistance R6, resistance R7 and resistance R8 is 20K Ω, and the resistance of resistance R9, resistance R10, resistance R11 and resistance R12 is 15K Ω.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674885.3A CN104470080A (en) | 2014-11-22 | 2014-11-22 | Logic control system based on switching power amplifying circuit |
| CN201510323857.1A CN104968077A (en) | 2014-11-22 | 2015-06-13 | Logic control system of switching power amplification type based on half-bridge control drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674885.3A CN104470080A (en) | 2014-11-22 | 2014-11-22 | Logic control system based on switching power amplifying circuit |
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| Publication Number | Publication Date |
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| CN104470080A true CN104470080A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410674885.3A Pending CN104470080A (en) | 2014-11-22 | 2014-11-22 | Logic control system based on switching power amplifying circuit |
| CN201510323857.1A Pending CN104968077A (en) | 2014-11-22 | 2015-06-13 | Logic control system of switching power amplification type based on half-bridge control drive circuit |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510323857.1A Pending CN104968077A (en) | 2014-11-22 | 2015-06-13 | Logic control system of switching power amplification type based on half-bridge control drive circuit |
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| CN (2) | CN104470080A (en) |
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- 2014-11-22 CN CN201410674885.3A patent/CN104470080A/en active Pending
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Application publication date: 20150325 |