CN104935189A - Combined protection type mixed triggering power source based on logic protection amplifying circuit - Google Patents
Combined protection type mixed triggering power source based on logic protection amplifying circuit Download PDFInfo
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- CN104935189A CN104935189A CN201510315600.1A CN201510315600A CN104935189A CN 104935189 A CN104935189 A CN 104935189A CN 201510315600 A CN201510315600 A CN 201510315600A CN 104935189 A CN104935189 A CN 104935189A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/213—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only in integrated circuits
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- Microelectronics & Electronic Packaging (AREA)
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Abstract
The invention discloses a combined protection type mixed triggering power source based on a logic protection amplifying circuit. The combined protection type mixed triggering power source based on the logic protection amplifying circuit is composed of a transformer diode triggering circuit, a power logic control circuit, a crystal oscillating circuit and a buffering crystal oscillating circuit, wherein the power logic control circuit is connected with the transformer diode triggering circuit, and the crystal oscillating circuit and the buffering crystal oscillating circuit are connected with the transformer diode triggering circuit. A logic protection amplifying circuit is further connected between the transformer diode triggering circuit and the power logic control circuit in series. A combined protection circuit is arranged on the transformer diode triggering circuit. By the adoption of the combined protection type mixed triggering power source based on the logic protection amplifying circuit, the power supply of a circuit can be automatically switched off when running current or voltage of the circuit exceeds a preset value, the circuit is prevented from being damaged by impact of the current or the voltage, the service life of the circuit is better prolonged, the circuit structure can be greatly simplified, radio-frequency interference of the circuit and radio-frequency interference of external connection are reduced, and thereby manufacturing cost and maintenance cost are greatly reduced, and meanwhile, the delay effect of a traditional power circuit can be effectively overcome and the quality of the power source can be effectively improved.
Description
Technical field
The present invention relates to a kind of switching power supply, specifically refer to the combined protection type mixing trigger-type power supply of logic-based protection amplifying circuit.
Background technology
At present, along with the develop rapidly of power industry, the equipment that people are used for Power System Faults Detection also has great development.Because the maintenance of electric power system often relates to hundreds of kilovolt, the even voltage circuit of up to a million kilovolts, therefore its maintenance circuit is very long, so also very high to the power reguirements of fault test set.But, but larger ripple coefficient is there is in current people to the portable power source that fault test set provides, not only can produce radio-frequency electromagnetic interference, and its circuit structure more complicated, maintenance and cost of manufacture are higher, therefore greatly limit the scope of application of fault test set, be unfavorable for that people check on a large scale to circuit.
Summary of the invention
The object of the invention is to the defect that ripple coefficient is comparatively large, radio frequency interference is serious, circuit is complicated and efficiency is not high overcoming the existence of current fault test set power supply, provide logic-based to protect the combined protection type mixing trigger-type power supply of amplifying circuit.
Object of the present invention is achieved through the following technical solutions:
The combined protection type mixing trigger-type power supply of logic-based protection amplifying circuit; primarily of transformer diode triggered circuit; the logical power control circuit be connected with this transformer diode triggered circuit; the crystal oscillating circuit be connected with this transformer diode triggered circuit and cushion crystal oscillating circuit, and the composite type protective circuit arranged on transformer diode triggered circuit forms.Meanwhile, between transformer diode triggered circuit and logical power control circuit, virtual protection amplifying circuit is also serially connected with, described virtual protection amplifying circuit is primarily of power amplifier P2, power amplifier P3, NAND gate IC5, NAND gate IC6, negative pole is connected with the electrode input end of power amplifier P2, the polar capacitor C7 that positive pole is connected with the negative input of NAND gate IC6 after resistance R15, one end is connected with the negative input of NAND gate IC5, the resistance R12 that the other end is connected with the electrode input end of power amplifier P2, be serially connected in the resistance R13 between the negative input of power amplifier P2 and output, one end is connected with the output of NAND gate IC5, the resistance R14 that the other end is connected with the negative input of power amplifier P3, be serially connected in the polar capacitor C8 between the electrode input end of power amplifier P3 and output, positive pole is connected with the output of NAND gate IC6, negative pole is in turn through electric capacity C9 that voltage stabilizing didoe D6 is connected with the output of power amplifier P2 after resistance R16, P pole is connected with the output of power amplifier P3, N pole is in turn through diode D8 that resistance R18 is connected with the tie point of resistance R16 with voltage stabilizing didoe D6 after resistance R17, and N pole is connected with the negative pole of electric capacity C9, the voltage stabilizing didoe D7 that P pole is connected with the tie point of resistance R18 with diode D8 forms, the electrode input end of described NAND gate IC5 is connected with the negative input of power amplifier P2, the electrode input end of the output NAND gate IC6 of power amplifier P3 is connected, and its electrode input end is then connected with the output of power amplifier P2, the positive pole of described polar capacitor C7 is connected with transformer diode triggered circuit, and resistance R18 is then connected with logical power control circuit with the tie point of resistance R17, described composite type protective circuit is by incoming line, transformer T101, diode rectifier U101, voltage stabilizing integrated chip Q101, operational amplifier P101, operational amplifier P102, triode VT101, triode VT102, triode VT103, triode VT104, triode VT105, triode VT106, minus earth, the electric capacity C101 that positive pole is connected with the positive output end of diode rectifier U101, minus earth, the electric capacity C102 that positive pole is connected with the OUT pin of voltage stabilizing integrated chip Q101, one end is connected with the positive pole of electric capacity C102, the resistance R101 that the other end is connected with the negative input end of operational amplifier P101, N pole is connected with the positive pole of electric capacity C102, the diode D101 that negative pole is connected with the collector electrode of triode VT101, the relay K 101 in parallel with diode D101, one end is connected with the P pole of diode D101, the resistance R103 of other end ground connection after resistance R102, one end is connected with the base stage of triode VT101, the resistance R104 that the other end is connected with the output of operational amplifier P101, minus earth, the electric capacity C103 that positive pole is connected with the positive input terminal of operational amplifier P101, one end ground connection, the slide rheostat RP101 that the other end is connected with the positive pole of electric capacity C103, minus earth, the electric capacity C104 that positive pole is connected with the positive pole of electric capacity C102 after resistance R109, P pole is connected with the positive input terminal of operational amplifier P102 the voltage stabilizing didoe D102 that N pole is connected with the positive pole of electric capacity C104, one end is connected with the positive pole of electric capacity C102, the resistance R108 that the other end is connected with the negative input end of operational amplifier P102, one end ground connection, the resistance R107 that the other end is connected with the negative input end of operational amplifier P102, one end is connected with the output of operational amplifier P102, the resistance R106 that the other end is connected with the base stage of triode VT102, one end is connected with the N pole of diode D101, the resistance R105 that the other end is connected with the base stage of triode VT103, one end is connected with the emitter of triode VT104, the resistance R110 that the other end is connected with the collector electrode of triode VT105, and one end is connected with the base stage of triode VT104, the other end is connected with the emitter of triode VT106, the slide rheostat RP102 that sliding end is connected with the base stage of triode VT105 forms, wherein, the two ends on the former limit of transformer T101 are connected in two input lines of incoming line, the two ends of its secondary are connected on two inputs of diode rectifier U101, the negative output terminal ground connection of diode rectifier U101, the GND pin ground connection of voltage stabilizing integrated chip Q101, its IN pin is connected with the positive pole of electric capacity C101, the negative input end of operational amplifier P102 is connected with the collector electrode of triode VT102, the emitter of triode VT102 is connected with the emitter of the base stage of triode VT103 with the base stage of triode VT106 and triode VT101 simultaneously, the N pole of diode D101 is also connected with the collector electrode of triode VT103 with the collector electrode of triode VT104, the base stage of triode VT104 is connected with the emitter of triode VT105 with the emitter of triode VT103 simultaneously, the emitter of triode VT104 is connected with the collector electrode of triode VT106, the grounded emitter of triode VT106, the normally-closed contact switch S 101 of described relay K 101 is arranged on incoming line.
Further, described logical power control circuit is by power amplifier P1, NAND gate IC1, NAND gate IC2, NAND gate IC3, NAND gate IC4, N pole is connected with the output of power amplifier P1, the diode D5 of P pole ground connection after resistance R10, one end is connected with the electrode input end of NAND gate IC1, the resistance R5 that the other end is connected with the output of NAND gate IC2 after electric capacity C4, one end is connected with the output of NAND gate IC1, the resistance R6 that the other end is connected with the tie point of electric capacity C4 with resistance R5, one end is connected with the output of NAND gate IC3, the resistance R7 that the other end is connected with the output of NAND gate IC4 after resistance R8, and one end is connected with the negative input of power amplifier P1, the resistance R11 of other end ground connection forms, the negative input ground connection of described NAND gate IC1, its output is also connected with the electrode input end of NAND gate IC2, the negative input of NAND gate IC2 is connected with the electrode input end of power amplifier P1, its output is then connected with the negative input of NAND gate IC4 with the electrode input end of NAND gate IC3 respectively, and the negative input of NAND gate IC3 is connected with the electrode input end of NAND gate IC4, the electrode input end of described power amplifier P1 and resistance R7 are all connected with this transformer diode triggered circuit with the tie point of resistance R8, described resistance R18 is then connected with the negative input of NAND gate IC2 with the tie point of resistance R17.
Described crystal oscillating circuit is by inverting amplifier U1, be serially connected in the resistance R9 between the input of inverting amplifier U1 and output and quartz oscillator X1, the electric capacity C1 that positive pole is connected with the input of inverting amplifier U1, negative pole is connected with transformer diode triggered circuit, and the tunable capacitor C2 that positive pole is connected with the output of inverting amplifier U1, negative pole is connected with transformer diode triggered circuit forms.
Described buffered crystal oscillating circuit is by inverting amplifier U2, the inverting amplifier U3 that input is connected with the output of inverting amplifier U2, one end is connected with the output of inverting amplifier U2, the other end in turn through the inductance L 5 that inductance L 4 is connected with the input of inverting amplifier U2 after tunable capacitor C3, and the quartz oscillator X2 that one end is connected with the input of inverting amplifier U2, the other end is connected with the tie point of inductance L 4 with inductance L 5 forms; The input of described inverting amplifier U2 is then all connected with transformer diode triggered circuit with the output of inverting amplifier U3.
Described transformer diode triggered circuit is by diode rectifier U, and transformer T and circuits for triggering form; Described transformer T is made up of primary coil L1, secondary coil L2 and secondary coil L3, and this primary coil L1 is connected with cathode output end with the cathode output end of diode rectifier U, described circuits for triggering are then connected with secondary coil L3 with secondary coil L2 simultaneously; The electrode input end of described power amplifier P1 is connected with the non-same polarity of secondary coil L3, and its output is then connected with these circuits for triggering; Described resistance R7 is also connected with these circuits for triggering with the tie point of resistance R8; The positive pole of described polar capacitor C7 is then connected with the non-same polarity of secondary coil L3.
Described circuits for triggering are by transistor Q1, transistor Q2, one end is connected with the base stage of transistor Q1, the resistance R3 that the other end is connected with the base stage of transistor Q2 after resistance R4, one end is connected with the collector electrode of transistor Q1, the resistance R1 that the other end is connected with the base stage of transistor Q2, the electric capacity C5 be in parallel with resistance R1, one end is connected with the collector electrode of transistor Q2, the resistance R2 that the other end is connected with the base stage of transistor Q1, the electric capacity C6 be in parallel with resistance R2, N pole is connected with the base stage of transistor Q1, the diode D2 that P pole is connected with the non-same polarity of secondary coil L2, P pole is connected with the non-same polarity of secondary coil L2, the diode D1 that N pole is connected with the emitter of transistor Q1, N pole is connected with the base stage of transistor Q2, the diode D3 that P pole is connected with the Same Name of Ends of secondary coil L3, and P pole is connected with the Same Name of Ends of secondary coil L3, the diode D4 that N pole is connected with the emitter of transistor Q2 forms, the emitter of described transistor Q1 is also connected rear ground connection, the emitter then ground connection of described transistor Q2 with the Same Name of Ends of secondary coil L2, the output of described power amplifier P1 is connected with the tie point of resistance R4 with resistance R3, and resistance R7 is then connected with the emitter of transistor Q2 with the tie point of resistance R8.
The present invention comparatively prior art compares, and has the following advantages and beneficial effect:
(1) the present invention can simplify circuit structure greatly, reduces circuit self and external radio frequency interference, cost of manufacture and maintenance cost are had reduction by a relatively large margin.
(2) the present invention effectively can overcome the late effect of conventional power source circuit, effectively can improve the quality of power supply.
(3) scope of application of the present invention is comparatively wide, can be applicable to the fault detect environment of different occasion.
(4) the present invention is provided with composite type protective circuit, can power by automatic shutoff circuit, avoid circuit by curtage impact failure, better extend the useful life of circuit when the running current of circuit or voltage exceed preset value.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is virtual protection amplification circuit structure schematic diagram of the present invention.
Fig. 3 is the circuit diagram of composite type amplifying circuit of the present invention.
Description of reference numerals:
10, composite type amplifying circuit; 20, virtual protection amplifying circuit.
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; the present invention is primarily of transformer diode triggered circuit; the crystal oscillating circuit be connected with this transformer diode triggered circuit and cushion crystal oscillating circuit; the logical power control circuit be connected with transformer diode triggered circuit; be serially connected in the virtual protection amplifying circuit 20 between transformer diode triggered circuit and logical power control circuit, and the composite type protective circuit 10 arranged on transformer diode triggered circuit forms.
Wherein, described transformer diode triggered circuit is made up of diode rectifier U, transformer T and circuits for triggering, and crystal oscillating circuit is then all connected with circuits for triggering with buffering crystal oscillating circuit.
As shown in Figure 2, this virtual protection amplifying circuit 20 is primarily of power amplifier P2, power amplifier P3, NAND gate IC5, NAND gate IC6, negative pole is connected with the electrode input end of power amplifier P2, the polar capacitor C7 that positive pole is connected with the negative input of NAND gate IC6 after resistance R15, one end is connected with the negative input of NAND gate IC5, the resistance R12 that the other end is connected with the electrode input end of power amplifier P2, be serially connected in the resistance R13 between the negative input of power amplifier P2 and output, one end is connected with the output of NAND gate IC5, the resistance R14 that the other end is connected with the negative input of power amplifier P3, be serially connected in the polar capacitor C8 between the electrode input end of power amplifier P3 and output, positive pole is connected with the output of NAND gate IC6, negative pole is in turn through electric capacity C9 that voltage stabilizing didoe D6 is connected with the output of power amplifier P2 after resistance R16, P pole is connected with the output of power amplifier P3, N pole is in turn through diode D8 that resistance R18 is connected with the tie point of resistance R16 with voltage stabilizing didoe D6 after resistance R17, and N pole is connected with the negative pole of electric capacity C9, the voltage stabilizing didoe D7 that P pole is connected with the tie point of resistance R18 with diode D8 forms.
Meanwhile, the electrode input end of described NAND gate IC5 is connected with the negative input of power amplifier P2; The electrode input end of the output NAND gate IC6 of power amplifier P3 is connected, and its electrode input end is then connected with the output of power amplifier P2.
As shown in Figure 3, described composite type protective circuit 10 is by incoming line, transformer T101, diode rectifier U101, voltage stabilizing integrated chip Q101, operational amplifier P101, operational amplifier P102, triode VT101, triode VT102, triode VT103, triode VT104, triode VT105, triode VT106, resistance R101, resistance R102, resistance R103, resistance R104, resistance R105, resistance R106, resistance R107, resistance R108, resistance R109, resistance R110, electric capacity C101, electric capacity C102, electric capacity C103, electric capacity C104, diode D101, voltage stabilizing didoe D102, slide rheostat RP101, slide rheostat RP102 forms, during connection, the minus earth of electric capacity C101, positive pole is connected with the positive output end of diode rectifier U101, the minus earth of electric capacity C102, positive pole is connected with the OUT pin of voltage stabilizing integrated chip Q101, one end of resistance R101 is connected with the positive pole of electric capacity C102, the other end is connected with the negative input end of operational amplifier P101, the N pole of diode D101 is connected with the positive pole of electric capacity C102, negative pole is connected with the collector electrode of triode VT101, relay K 101 is in parallel with diode D101, one end of resistance R103 is connected with the P pole of diode D101, the other end is ground connection after resistance R102, one end of resistance R104 is connected with the base stage of triode VT101, the other end is connected with the output of operational amplifier P101, the minus earth of electric capacity C103, positive pole is connected with the positive input terminal of operational amplifier P101, one end ground connection of slide rheostat RP101, the other end is connected with the positive pole of electric capacity C103, the minus earth of electric capacity C104, positive pole is connected with the positive pole of electric capacity C102 after resistance R109, the P pole of voltage stabilizing didoe D102 is connected with the positive input terminal of operational amplifier P102, N pole is connected with the positive pole of electric capacity C104, one end of resistance R108 is connected with the positive pole of electric capacity C102, the other end is connected with the negative input end of operational amplifier P102, one end ground connection of resistance R107, the other end is connected with the negative input end of operational amplifier P102, one end of resistance R106 is connected with the output of operational amplifier P102, the other end is connected with the base stage of triode VT102, one end of resistance R105 is connected with the N pole of diode D101, the other end is connected with the base stage of triode VT103, one end of resistance R110 is connected with the emitter of triode VT104, the other end is connected with the collector electrode of triode VT105, one end of slide rheostat RP102 is connected with the base stage of triode VT104, the other end is connected with the emitter of triode VT106, sliding end is connected with the base stage of triode VT105, wherein, the two ends on the former limit of transformer T101 are connected in two input lines of incoming line, the two ends of its secondary are connected on two inputs of diode rectifier U101, the negative output terminal ground connection of diode rectifier U101, the GND pin ground connection of voltage stabilizing integrated chip Q101, its IN pin is connected with the positive pole of electric capacity C101, the negative input end of operational amplifier P102 is connected with the collector electrode of triode VT102, the emitter of triode VT102 is connected with the emitter of the base stage of triode VT103 with the base stage of triode VT106 and triode VT101 simultaneously, the N pole of diode D101 is also connected with the collector electrode of triode VT103 with the collector electrode of triode VT104, the base stage of triode VT104 is connected with the emitter of triode VT105 with the emitter of triode VT103 simultaneously, the emitter of triode VT104 is connected with the collector electrode of triode VT106, the grounded emitter of triode VT106, the normally-closed contact switch S 101 of described relay K 101 is arranged on incoming line.When the voltage of circuit or electric current exceed preset value, relay K 101 electric, thus normally-closed contact switch S 101 is disconnected, makes whole down circuitry.
Described logical power control circuit is by power amplifier P1, NAND gate IC1, NAND gate IC2, NAND gate IC3, NAND gate IC4, and diode D5, electric capacity C4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R10 and resistance R11 form.During connection, the N pole of diode D5 is connected with the output of power amplifier P1, its P pole ground connection after resistance R10; One end of resistance R5 is connected with the electrode input end of NAND gate IC1, and its other end is connected with the output of NAND gate IC2 after electric capacity C4; One end of resistance R6 is connected with the output of NAND gate IC1, and its other end is connected with the tie point of electric capacity C4 with resistance R5.
One end of resistance R7 is connected with the output of NAND gate IC3, and its other end is connected with the output of NAND gate IC4 after resistance R8; And one end of resistance R11 is connected with the negative input of power amplifier P1, its other end then ground connection.
The negative input ground connection of described NAND gate IC1, its output is also connected with the electrode input end of NAND gate IC2; The negative input of NAND gate IC2 is connected with the electrode input end of power amplifier P1, and its output is then connected with the negative input of NAND gate IC4 with the electrode input end of NAND gate IC3 respectively.The negative input of described NAND gate IC3 is connected with the electrode input end of NAND gate IC4.
Described transformer T is made up of primary coil L1, secondary coil L2 and secondary coil L3, and this primary coil L1 is connected with cathode output end with the cathode output end of diode rectifier U, the electrode input end of power amplifier P1 is then connected with the non-same polarity of secondary coil L3.Meanwhile, the positive pole of described polar capacitor C7 is connected with the non-same polarity of this secondary coil L3, and resistance R18 is then connected with the negative input of NAND gate IC2 with the tie point of resistance R17.
Described circuits for triggering are by transistor Q1, and transistor Q2, resistance R1, resistance R2, electric capacity C5, electric capacity C6, resistance R3, resistance R4, and diode D1, diode D2, diode D3 and diode D4 form.During connection, one end of resistance R3 is connected with the base stage of transistor Q1, and its other end is connected with the base stage of transistor Q2 after resistance R4; One end of resistance R1 is connected with the collector electrode of transistor Q1, and the other end is connected with the base stage of transistor Q2, and electric capacity C5 and resistance R1 is in parallel; One end of resistance R2 is connected with the collector electrode of transistor Q2, and its other end is connected with the base stage of transistor Q1, and electric capacity C6 is then in parallel with resistance R2.
The N pole of described diode D2 is connected with the base stage of transistor Q1, and its P pole is connected with the non-same polarity of secondary coil L2; The P pole of diode D1 is connected with the non-same polarity of secondary coil L2, and its N pole is connected with the emitter of transistor Q1; The N pole of diode D3 is connected with the base stage of transistor Q2, and its P pole is connected with the Same Name of Ends of secondary coil L3; The P pole of diode D4 is connected with the Same Name of Ends of secondary coil L3, and its N pole is connected with the emitter of transistor Q2.
Meanwhile, the emitter of described transistor Q1 is also connected rear ground connection with the Same Name of Ends of secondary coil L2, the emitter then direct ground connection of described transistor Q2.The output of power amplifier P1 is then connected with the tie point of resistance R4 with resistance R3, and resistance R7 is then connected with the emitter of transistor Q2 with the tie point of resistance R8.
Described crystal oscillating circuit is by inverting amplifier U1, be serially connected in the resistance R9 between the input of inverting amplifier U1 and output and quartz oscillator X1, the electric capacity C1 that positive pole is connected with the input of inverting amplifier U1, negative pole is connected with the collector electrode of transistor Q1, and the tunable capacitor C2 that positive pole is connected with the output of inverting amplifier U1, negative pole is connected with the base stage of transistor Q2 forms.
Described buffered crystal oscillating circuit is by inverting amplifier U2, and inverting amplifier U3, inductance L 4, inductance L 5, tunable capacitor C3 and quartz oscillator X2 forms.During connection, the input of inverting amplifier U3 is connected with the output of inverting amplifier U2, and one end of inductance L 5 is connected with the output of inverting amplifier U2, its other end is then connected with the input of inverting amplifier U2 after tunable capacitor C3 through inductance L 4 in turn.One end of described quartz oscillator X2 is connected with the input of inverting amplifier U2, and its other end is connected with the tie point of inductance L 5 with inductance L 4.
Meanwhile, the input of described inverting amplifier U2 will be connected with the base stage of transistor Q1, and the output of inverting amplifier U3 is then connected with the collector electrode of transistor Q2.
For guaranteeing result of use, described electric capacity C1, electric capacity C4, electric capacity C5 and electric capacity C6 all preferentially adopt patch capacitor to realize.
As mentioned above, just the present invention can well be realized.
Claims (4)
1. the combined protection type mixing trigger-type power supply of logic-based protection amplifying circuit, primarily of transformer diode triggered circuit, the logical power control circuit be connected with this transformer diode triggered circuit, and the crystal oscillating circuit to be connected with this transformer diode triggered circuit and cushion crystal oscillating circuit and form, it is characterized in that, between transformer diode triggered circuit and logical power control circuit, be also serially connected with virtual protection amplifying circuit (20), transformer diode triggered circuit is also provided with composite type protective circuit (10), described virtual protection amplifying circuit (20) is primarily of power amplifier P2, power amplifier P3, NAND gate IC5, NAND gate IC6, negative pole is connected with the electrode input end of power amplifier P2, the polar capacitor C7 that positive pole is connected with the negative input of NAND gate IC6 after resistance R15, one end is connected with the negative input of NAND gate IC5, the resistance R12 that the other end is connected with the electrode input end of power amplifier P2, be serially connected in the resistance R13 between the negative input of power amplifier P2 and output, one end is connected with the output of NAND gate IC5, the resistance R14 that the other end is connected with the negative input of power amplifier P3, be serially connected in the polar capacitor C8 between the electrode input end of power amplifier P3 and output, positive pole is connected with the output of NAND gate IC6, negative pole is in turn through electric capacity C9 that voltage stabilizing didoe D6 is connected with the output of power amplifier P2 after resistance R16, P pole is connected with the output of power amplifier P3, N pole is in turn through diode D8 that resistance R18 is connected with the tie point of resistance R16 with voltage stabilizing didoe D6 after resistance R17, and N pole is connected with the negative pole of electric capacity C9, the voltage stabilizing didoe D7 that P pole is connected with the tie point of resistance R18 with diode D8 forms, the electrode input end of described NAND gate IC5 is connected with the negative input of power amplifier P2, the electrode input end of the output NAND gate IC6 of power amplifier P3 is connected, and its electrode input end is then connected with the output of power amplifier P2, the positive pole of described polar capacitor C7 is connected with transformer diode triggered circuit, and resistance R18 is then connected with logical power control circuit with the tie point of resistance R17,
Described composite type protective circuit (10) is by incoming line, transformer T101, diode rectifier U101, voltage stabilizing integrated chip Q101, operational amplifier P101, operational amplifier P102, triode VT101, triode VT102, triode VT103, triode VT104, triode VT105, triode VT106, minus earth, the electric capacity C101 that positive pole is connected with the positive output end of diode rectifier U101, minus earth, the electric capacity C102 that positive pole is connected with the OUT pin of voltage stabilizing integrated chip Q101, one end is connected with the positive pole of electric capacity C102, the resistance R101 that the other end is connected with the negative input end of operational amplifier P101, N pole is connected with the positive pole of electric capacity C102, the diode D101 that negative pole is connected with the collector electrode of triode VT101, the relay K 101 in parallel with diode D101, one end is connected with the P pole of diode D101, the resistance R103 of other end ground connection after resistance R102, one end is connected with the base stage of triode VT101, the resistance R104 that the other end is connected with the output of operational amplifier P101, minus earth, the electric capacity C103 that positive pole is connected with the positive input terminal of operational amplifier P101, one end ground connection, the slide rheostat RP101 that the other end is connected with the positive pole of electric capacity C103, minus earth, the electric capacity C104 that positive pole is connected with the positive pole of electric capacity C102 after resistance R109, P pole is connected with the positive input terminal of operational amplifier P102 the voltage stabilizing didoe D102 that N pole is connected with the positive pole of electric capacity C104, one end is connected with the positive pole of electric capacity C102, the resistance R108 that the other end is connected with the negative input end of operational amplifier P102, one end ground connection, the resistance R107 that the other end is connected with the negative input end of operational amplifier P102, one end is connected with the output of operational amplifier P102, the resistance R106 that the other end is connected with the base stage of triode VT102, one end is connected with the N pole of diode D101, the resistance R105 that the other end is connected with the base stage of triode VT103, one end is connected with the emitter of triode VT104, the resistance R110 that the other end is connected with the collector electrode of triode VT105, and one end is connected with the base stage of triode VT104, the other end is connected with the emitter of triode VT106, the slide rheostat RP102 that sliding end is connected with the base stage of triode VT105 forms, wherein, the two ends on the former limit of transformer T101 are connected in two input lines of incoming line, the two ends of its secondary are connected on two inputs of diode rectifier U101, the negative output terminal ground connection of diode rectifier U101, the GND pin ground connection of voltage stabilizing integrated chip Q101, its IN pin is connected with the positive pole of electric capacity C101, the negative input end of operational amplifier P102 is connected with the collector electrode of triode VT102, the emitter of triode VT102 is connected with the emitter of the base stage of triode VT103 with the base stage of triode VT106 and triode VT101 simultaneously, the N pole of diode D101 is also connected with the collector electrode of triode VT103 with the collector electrode of triode VT104, the base stage of triode VT104 is connected with the emitter of triode VT105 with the emitter of triode VT103 simultaneously, the emitter of triode VT104 is connected with the collector electrode of triode VT106, the grounded emitter of triode VT106, the normally-closed contact switch S 101 of described relay K 101 is arranged on incoming line.
2. the combined protection type mixing trigger-type power supply of logic-based protection amplifying circuit according to claim 1, it is characterized in that, described logical power control circuit is by power amplifier P1, NAND gate IC1, NAND gate IC2, NAND gate IC3, NAND gate IC4, N pole is connected with the output of power amplifier P1, the diode D5 of P pole ground connection after resistance R10, one end is connected with the electrode input end of NAND gate IC1, the resistance R5 that the other end is connected with the output of NAND gate IC2 after electric capacity C4, one end is connected with the output of NAND gate IC1, the resistance R6 that the other end is connected with the tie point of electric capacity C4 with resistance R5, one end is connected with the output of NAND gate IC3, the resistance R7 that the other end is connected with the output of NAND gate IC4 after resistance R8, and one end is connected with the negative input of power amplifier P1, the resistance R11 of other end ground connection forms, the negative input ground connection of described NAND gate IC1, its output is also connected with the electrode input end of NAND gate IC2, the negative input of NAND gate IC2 is connected with the electrode input end of power amplifier P1, its output is then connected with the negative input of NAND gate IC4 with the electrode input end of NAND gate IC3 respectively, and the negative input of NAND gate IC3 is connected with the electrode input end of NAND gate IC4, the electrode input end of described power amplifier P1 and resistance R7 are all connected with this transformer diode triggered circuit with the tie point of resistance R8, described resistance R18 is then connected with the negative input of NAND gate IC2 with the tie point of resistance R17,
Described crystal oscillating circuit is by inverting amplifier U1, be serially connected in the resistance R9 between the input of inverting amplifier U1 and output and quartz oscillator X1, the electric capacity C1 that positive pole is connected with the input of inverting amplifier U1, negative pole is connected with transformer diode triggered circuit, and the tunable capacitor C2 that positive pole is connected with the output of inverting amplifier U1, negative pole is connected with transformer diode triggered circuit forms;
Described buffered crystal oscillating circuit is by inverting amplifier U2, the inverting amplifier U3 that input is connected with the output of inverting amplifier U2, one end is connected with the output of inverting amplifier U2, the other end in turn through the inductance L 5 that inductance L 4 is connected with the input of inverting amplifier U2 after tunable capacitor C3, and the quartz oscillator X2 that one end is connected with the input of inverting amplifier U2, the other end is connected with the tie point of inductance L 4 with inductance L 5 forms; The input of described inverting amplifier U2 is then all connected with transformer diode triggered circuit with the output of inverting amplifier U3.
3. the combined protection type mixing trigger-type power supply of logic-based protection amplifying circuit according to claim 2, is characterized in that, described transformer diode triggered circuit is by diode rectifier U, and transformer T and circuits for triggering form; Described transformer T is made up of primary coil L1, secondary coil L2 and secondary coil L3, and this primary coil L1 is connected with cathode output end with the cathode output end of diode rectifier U, described circuits for triggering are then connected with secondary coil L3 with secondary coil L2 simultaneously; The electrode input end of described power amplifier P1 is connected with the non-same polarity of secondary coil L3, and its output is then connected with these circuits for triggering; Described resistance R7 is also connected with these circuits for triggering with the tie point of resistance R8; The positive pole of described polar capacitor C7 is then connected with the non-same polarity of secondary coil L3.
4. the combined protection type mixing trigger-type power supply of logic-based protection amplifying circuit according to claim 3, it is characterized in that, described circuits for triggering are by transistor Q1, transistor Q2, one end is connected with the base stage of transistor Q1, the resistance R3 that the other end is connected with the base stage of transistor Q2 after resistance R4, one end is connected with the collector electrode of transistor Q1, the resistance R1 that the other end is connected with the base stage of transistor Q2, the electric capacity C5 be in parallel with resistance R1, one end is connected with the collector electrode of transistor Q2, the resistance R2 that the other end is connected with the base stage of transistor Q1, the electric capacity C6 be in parallel with resistance R2, N pole is connected with the base stage of transistor Q1, the diode D2 that P pole is connected with the non-same polarity of secondary coil L2, P pole is connected with the non-same polarity of secondary coil L2, the diode D1 that N pole is connected with the emitter of transistor Q1, N pole is connected with the base stage of transistor Q2, the diode D3 that P pole is connected with the Same Name of Ends of secondary coil L3, and P pole is connected with the Same Name of Ends of secondary coil L3, the diode D4 that N pole is connected with the emitter of transistor Q2 forms, the emitter of described transistor Q1 is also connected rear ground connection, the emitter then ground connection of described transistor Q2 with the Same Name of Ends of secondary coil L2, the output of described power amplifier P1 is connected with the tie point of resistance R4 with resistance R3, and resistance R7 is then connected with the emitter of transistor Q2 with the tie point of resistance R8.
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| CN201510315600.1A CN104935189A (en) | 2014-11-27 | 2015-06-10 | Combined protection type mixed triggering power source based on logic protection amplifying circuit |
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| CN201410705500.5A CN104467481A (en) | 2014-11-27 | 2014-11-27 | Mixed triggering type power source based on logic protection amplifying circuit |
| CN2014107055005 | 2014-11-27 | ||
| CN201510315600.1A CN104935189A (en) | 2014-11-27 | 2015-06-10 | Combined protection type mixed triggering power source based on logic protection amplifying circuit |
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| CN104467481A (en) * | 2014-11-27 | 2015-03-25 | 成都措普科技有限公司 | Mixed triggering type power source based on logic protection amplifying circuit |
| CN104467792A (en) * | 2014-11-27 | 2015-03-25 | 成都措普科技有限公司 | Double-power-amplifier-circuit touch type water-saving system based on safety |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5486992A (en) * | 1995-01-09 | 1996-01-23 | The United States Of America As Represented By The Secretary Of The Army | High voltage direct current power supply with feedback control and circuit protection |
| CN201878028U (en) * | 2010-09-27 | 2011-06-22 | 东莞市乐科电子有限公司 | Power circuit of liquid crystal display television (LCD TV) |
| CN104467481A (en) * | 2014-11-27 | 2015-03-25 | 成都措普科技有限公司 | Mixed triggering type power source based on logic protection amplifying circuit |
| CN104467483A (en) * | 2014-11-27 | 2015-03-25 | 成都措普科技有限公司 | Switching voltage-stabilized power supply based on multi-stage power amplification balanced modulation circuit |
-
2014
- 2014-11-27 CN CN201410705500.5A patent/CN104467481A/en active Pending
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2015
- 2015-06-10 CN CN201510315600.1A patent/CN104935189A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5486992A (en) * | 1995-01-09 | 1996-01-23 | The United States Of America As Represented By The Secretary Of The Army | High voltage direct current power supply with feedback control and circuit protection |
| CN201878028U (en) * | 2010-09-27 | 2011-06-22 | 东莞市乐科电子有限公司 | Power circuit of liquid crystal display television (LCD TV) |
| CN104467481A (en) * | 2014-11-27 | 2015-03-25 | 成都措普科技有限公司 | Mixed triggering type power source based on logic protection amplifying circuit |
| CN104467483A (en) * | 2014-11-27 | 2015-03-25 | 成都措普科技有限公司 | Switching voltage-stabilized power supply based on multi-stage power amplification balanced modulation circuit |
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