CN205039790U - Hybrid integrated circuit is controlled frequently to limit - Google Patents
Hybrid integrated circuit is controlled frequently to limit Download PDFInfo
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- CN205039790U CN205039790U CN201520829081.6U CN201520829081U CN205039790U CN 205039790 U CN205039790 U CN 205039790U CN 201520829081 U CN201520829081 U CN 201520829081U CN 205039790 U CN205039790 U CN 205039790U
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Abstract
The utility model relates to a hybrid integrated circuit is controlled frequently to limit, including calculus of differences, compensation enlarge, hysteresis comparator, totem drive output and reference voltage circuit, the calculus of differences circuit carries out the enlarged output of equal proportion with the defeated entry control signal of outside, and the output signal and the 2nd reference voltage of calculus of differences circuit hold incoming signal as the homophase of hysteresis comparator circuit after the compensation of compensation amplifier circuit is amplified, and a reference voltage is as the inverting terminal incoming signal of hysteresis comparator circuit, the output of hysteresis comparator circuit is duty cycle 0 -100%'s PWM wave form, and this PWM wave form passes through totem drive output circuit succeeding crop for driving the output. The external control signal is the triangular signal from system sample, forms the PWM signal after enlargeing, compare, and again through totem output, for level power circuit after the system provides reliable drive signal, completion simultaneously detects the function to system power supply voltage.
Description
Technical field
The limit that the utility model relates to based on the full chip soldering process of alundum (Al2O3) substrate controls hybrid integrated circuit frequently, output drive signal is stablized, differential amplification precision is high, differential amplifier circuit realizes adjustable gain by external adjustment end, penetrate and with circuit, differential amplifier circuit and comparison circuit are isolated, totem driver output circuit provides drive current output driving current 600mA, signal dutyfactor can regulate 0 ~ 100% continuously with external feedback signal, is a kind of hybrid integrated circuit meeting space environment and use reliably and with long-term.
Background technology
In space system, because the management expectancy of the system of power supply is more and more higher, the operating time of system is more and more longer, the circuit volume needed is more and more less, the reliability requirement of circuit is more and more higher, and the life-span reliably and with long-term of circuit is also more and more higher, and requires that the volume of circuit is little, working stability, has ionizing radiation-resistant, Anti-single particle radiation simultaneously.
Limit frequency control circuit can provide control signal to power model, manages power-supply system, according to system requirements, for power model provides high-level control signal, can control to be released by excess charge to power supply ground, stablize battery tension; When limit frequency control circuit is according to system requirements, for power model low level control signal is provided time, power model is then to charge in batteries.Therefore, how to design the limit frequency control circuit of highly reliable (anti-space adverse circumstances, high efficiency and heat radiation, long-term work), become the direction that those skilled in the art make great efforts.
Utility model content
The purpose of this utility model is exactly to solve the requirement that like product volume is large, q-percentile life does not reach 15 years operation on orbits, provide that a kind of reliability is high, long working life, the various radiation in anti-space, limit frequency control circuit.Have and use flexibly, the feature of highly versatile.
The technical solution realizing the utility model object is:
A kind of limit controls hybrid integrated circuit frequently, it is characterized in that, comprises calculus of differences circuit, compensates amplifying circuit, hysteresis comparator circuit, totem driver output circuit and reference voltage circuit;
The input control signal of outside is carried out equal proportion and amplifies output by calculus of differences circuit, the output signal of calculus of differences circuit and the second reference voltage through compensate amplifying circuit compensate amplify after as the in-phase end input signal of hysteresis comparator circuit, the first reference voltage is as the end of oppisite phase input signal of hysteresis comparator circuit; Hysteresis comparator circuit exports as the PWM waveform of duty ratio 0-100%, this PWM waveform by after totem driver output circuit as drive output.
Calculus of differences circuit comprises the first operational amplifier, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 3rd electric capacity;
Two-way input control signal is connected to inverting input and the in-phase input end of the first operational amplifier respectively through the second resistance, the 3rd resistance; The output of the first operational amplifier is connected to difference sample circuit, simultaneously through the 5th resistance feedback to inverting input; Between the in-phase input end being connected to the first operational amplifier after 3rd electric capacity and the 4th resistor coupled in parallel and ground.
Compensate amplifying circuit and comprise the second amplifier, the 15 resistance, the 16 resistance and external adjustable resistance;
The output warp of calculus of differences circuit, the 16 resistance are connected to the in-phase input end of the second amplifier, and the second reference voltage that reference voltage circuit exports is connected to the inverting input of the second amplifier through the 15 resistance; The output of the second amplifier is connected to hysteresis comparator circuit; The output of the second amplifier feeds back to the inverting input of the second amplifier simultaneously through external adjustable resistance.
The external adjustable resistance of in-phase input end of the second amplifier.
Hysteresis comparator circuit comprises the 4th comparator, the 17 resistance, the 18 resistance, the 19 resistance, the 20 resistance, the 21 resistance, the 22 resistance, the 15 electric capacity, the 17 electric capacity, the 18 electric capacity and diode;
Compensate amplifying circuit is connected to the 4th comparator in-phase input end through the 18 resistance, the first reference voltage that reference voltage circuit exports is connected to the inverting input of the 4th comparator through the 17 resistance; The 15 electric capacity is connected between the in-phase input end of the 4th comparator, inverting input; The output of the 4th comparator connects the 22 resistance, and the 22 resistance other end is connected in totem driver output circuit, and meanwhile, the 22 resistance other end is also connected with the negative pole of diode, the plus earth of diode; Meanwhile, the 22 resistance other end through the 21 resistance feedback to the in-phase input end of the 4th comparator; The negative power end of the 4th comparator connects-12V power supply through the 20 resistance, and meanwhile, the negative power end of the 4th comparator is through the 18 capacity earth; The positive power source terminal of the 4th comparator connects+12V power supply through the 19 resistance, and meanwhile, the positive power source terminal of the 4th comparator is through the 17 capacity earth.
Totem driver output circuit comprises the second triode, the 3rd triode, the 23 resistance, the 24 resistance and the 25 resistance;
The output of hysteresis comparator circuit is connected to the base stage of the second triode and the 3rd triode respectively, and the source electrode of the second triode, the 3rd triode connects altogether; Second triode drain electrode connects+12V power supply through the 23 resistance; Second triode drain electrode is through the 25 grounding through resistance GND; The source electrode of the second triode, the 3rd triode is total to contact and is connected to drive output through the 24 resistance.
The utility model adopts the operational amplifier chip of bipolar process to form calculus of differences circuit, compensates amplifying circuit and emitter follower circuit, bipolar process comparator chip formation hysteresis comparator circuit, bipolar process REF chip formation reference voltage source, and diode chip for backlight unit, two triodes form totem driver output circuit; Chip electrical connection adopts homogeneity bonding (aluminium aluminium bonding and golden gold bonding), IC chip, bonding point transition chip adopt the assembling of eutectic welding, chip output point and the bonding point transition chip on substrate are by being connected, AL2O3 substrate adopts eutectic Welding to be welded to metal shell, improves the ability that anti-centrifugal acceleration is impacted.
In circuit, the control signal (sawtooth waveforms) that outside inputs by calculus of differences circuit carries out the output of equal proportion amplification and the second reference voltage V ref2 amplifies the in-phase input signals for 1 of (difference) circuit as hysteresis comparator circuit through overcompensation again, and the first reference voltage V ref1 is as the rp input signal of hysteresis comparator circuit.Then hysteresis comparator circuit exports the PWM waveform for duty ratio 0-100%, and this signal is by totem driver output circuit.
The utility model relates to a kind of limit frequency control circuit (highly reliable hybrid integrated circuit) of the full chip soldering process based on alundum (Al2O3) substrate, circuit is made up of reference voltage circuit, differential amplifier circuit, hysteresis comparator circuit, totem driving etc., the IC chips such as reference voltage source, differential amplifier circuit, hysteresis comparator circuit and resistance, appearance element are assembled into alundum (Al2O3) substrate by soldering process, chip signal end is bonded to by Si-Al wire electricity transition chip realizing internal circuit and connects, and outer lead completes electricity by gold wire bonding and connects.
External control signal is the triangular signal from systematic sampling, through amplification, relatively after form pwm signal, export through totem again, acquisition low level is 0V, high level 9V, frequency is 0 ~ 10k, the continuously adjustable square-wave voltage of duty ratio 0 ~ 100%, for system rear class power circuit provides reliable drive singal, completes simultaneously and carries out measuring ability to system power source voltage.
The utility model has the advantages that high-quality level, reach very high mechanical level: the stress of resistance to constant acceleration is at least at 20000g, mechanical shock stress level is at more than 10000g, Random vibration level 20 ~ 2000Hz, total root-mean-square value is greater than 20grms, have ionizing radiation-resistant ability (30kRAD), the reliably working life-span reaches the hybrid integrated circuit of 15 years.
Accompanying drawing explanation
Fig. 1 limits frequency control circuit schematic diagram;
Fig. 2 calculus of differences circuit diagram;
Fig. 3 compensates amplification circuit diagram;
Fig. 4 hysteresis comparator circuit figure;
Fig. 5 totem drive circuit figure;
Fig. 6 Vref circuit.
Embodiment
As shown in Figure 1, one limit frequency control circuit of the present utility model, comprises calculus of differences, compensation amplification, hysteresis comparator, totem driver output, reference voltage circuit (or claiming Vref circuit).The input control signal (sawtooth waveforms) of outside is carried out the output of equal proportion amplification by calculus of differences circuit and reference voltage V ref2 amplifies the in-phase input signals for 1 of (difference) circuit as hysteresis comparator circuit through overcompensation again, and reference voltage V ref1 is as the rp input signal of hysteresis comparator circuit.Then hysteresis comparator circuit exports the PWM waveform for duty ratio 0-100%, and this signal is by totem driver output circuit.
As shown in Figure 2, calculus of differences circuit is made up of operational amplifier N1D, resistance R2, R3, R4, R5, electric capacity C3, C4.Input control signal 1,2 is connected to inverting input and the in-phase input end of operational amplifier N1D respectively through resistance R2, R3; The output of operational amplifier N1D is connected to compensation amplifying circuit, feeds back to inverting input through resistance R5 simultaneously.The in-phase input end of operational amplifier N1D is also connected to signal adjustment end Vq, can external capacitor or resistance to.Between the in-phase input end being connected to operational amplifier N1D after electric capacity C3, C4 and resistance R4 parallel connection and ground.Resistance R2, R3, R4, R5 determine amplification coefficient, electric capacity C3, C4 filtering.
As shown in Figure 3, compensate amplifying circuit by amplifier, resistance R15, R16 and as required external adjustable resistance form, amplification is compensated to signal.The output of calculus of differences circuit is connected to the in-phase input end of amplifier N1C through resistance R16, the reference voltage V ref2 that Vref circuit exports is connected to the inverting input of amplifier N1C through resistance R15.The output of amplifier N1C is connected to hysteresis comparator, and the output of amplifier N1C feeds back to the inverting input of amplifier N1C simultaneously through external adjustable resistance.The in-phase input end of amplifier N1C also can external adjustable resistance as required.
As shown in Figure 4, hysteresis comparator is made up of comparator N4, resistance R17, R18, R19, R20, R21, R22, electric capacity C15, C16, C17, C18, C19, C20 and diode V1.Compensate amplifying circuit is connected to comparator N4 in-phase input end through resistance R18, the reference voltage V ref1 that Vref circuit exports is connected to the inverting input of comparator N4 through resistance R17.Series capacitance C15, C16 between the in-phase input end of comparator N4, inverting input.The output of comparator N4 connects a resistance R22, and the resistance R22 other end is connected in totem driver output circuit, and meanwhile, the resistance R22 other end is also connected with the negative pole of diode V1, the plus earth of diode V1; Meanwhile, the resistance R22 other end feeds back to the in-phase input end of comparator N4 through resistance R21.The negative power end of comparator N4 connects-12V power supply through resistance R20, meanwhile, and electric capacity C18, C20 ground connection of negative power end through connecting of comparator N4.The positive power source terminal of comparator N4 connects+12V power supply through resistance R19, meanwhile, and electric capacity C17, C19 ground connection of positive power source terminal through connecting of comparator N4.
Electric capacity C15, C16 signal filtering, strengthen Anti-Jamming, electric capacity C17, C18, C19, C20, resistance R19, R20 are power filter.Diode V1 forms negative voltage clamp circuit.
As shown in Figure 5, totem driver output circuit is made up of triode V2, V3, resistance R23, R24, R25, the charging and discharging of grid when totem driver output circuit is conducive to metal-oxide-semiconductor turn-on and turn-off.The output of hysteresis comparator is connected to the base stage of triode V2, V3 respectively, and the source electrode of triode V2, V3 connects altogether.Triode V2 drain electrode connects+12V power supply through resistance R23.Triode V2 drains through resistance R25 ground connection GND.The source electrode of triode V2, V3 is total to contact and is connected to output through resistance R24.
As shown in Figure 6, Vref circuit comprises reference voltage chip Vref, resistance R1, R6, electric capacity C1, C2, C5, C6 and external adjustable resistance, for inside circuit provides two reference voltage signals Vref1, Vref2.Electric capacity C1, C2 and resistance R1 are power supply decoupling circuit.The positive power source terminal of reference voltage chip Vref connects+12V power supply through resistance R1; The positive power source terminal of reference voltage chip Vref is simultaneously through electric capacity C1, C2 ground connection of series connection, the ground connection termination power ground GND of reference voltage chip Vref, the output output reference voltage signal Vref1 of reference voltage chip Vref, the output of reference voltage chip Vref connects power supply ground, the common contact output reference voltage signal Vref2 of resistance R6 and external adjustable resistance through the resistance R6 of series connection, external adjustable resistance simultaneously.Electric capacity C5, C6 are in parallel with external adjustable resistance.
Circuit package form adopts metal shell air-tight packaging; IC chip adopts aluminium wire-transition chip to carry out bonding, and transition chip and substrate, substrate and shell adopt soldering to interconnect, and outer lead adopts gold wire bonding interconnection; Eutectic weldering realizes welding between substrate with metal shell base.
The utility model is used for spacecraft power supply subsystem, and after adopting Reliable Design to ensure that circuit stands various environmental stress for a long time, parameter still can not be drifted about.Inside circuit device all carries out derate 1 grade design, and Flouride-resistani acid phesphatase designs.
Claims (6)
1. limit controls a hybrid integrated circuit frequently, it is characterized in that, comprises calculus of differences circuit, compensates amplifying circuit, hysteresis comparator circuit, totem driver output circuit and reference voltage circuit;
The input control signal of outside is carried out equal proportion and amplifies output by calculus of differences circuit, the output signal of calculus of differences circuit and the second reference voltage through compensate amplifying circuit compensate amplify after as the in-phase end input signal of hysteresis comparator circuit, the first reference voltage is as the end of oppisite phase input signal of hysteresis comparator circuit; Hysteresis comparator circuit exports as the PWM waveform of duty ratio 0-100%, this PWM waveform by after totem driver output circuit as drive output.
2. limit according to claim 1 controls hybrid integrated circuit frequently, it is characterized in that,
Calculus of differences circuit comprises the first operational amplifier, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 3rd electric capacity;
Two-way input control signal is connected to inverting input and the in-phase input end of the first operational amplifier respectively through the second resistance, the 3rd resistance; The output of the first operational amplifier is connected to difference sample circuit, simultaneously through the 5th resistance feedback to inverting input; Between the in-phase input end being connected to the first operational amplifier after 3rd electric capacity and the 4th resistor coupled in parallel and ground.
3. limit according to claim 1 controls hybrid integrated circuit frequently, it is characterized in that,
Compensate amplifying circuit and comprise the second amplifier, the 15 resistance, the 16 resistance and external adjustable resistance;
The output warp of calculus of differences circuit, the 16 resistance are connected to the in-phase input end of the second amplifier, and the second reference voltage that reference voltage circuit exports is connected to the inverting input of the second amplifier through the 15 resistance; The output of the second amplifier is connected to hysteresis comparator circuit; The output of the second amplifier feeds back to the inverting input of the second amplifier simultaneously through external adjustable resistance.
4. limit according to claim 3 controls hybrid integrated circuit frequently, it is characterized in that,
The external adjustable resistance of in-phase input end of the second amplifier.
5. limit according to claim 1 controls hybrid integrated circuit frequently, it is characterized in that,
Hysteresis comparator circuit comprises the 4th comparator, the 17 resistance, the 18 resistance, the 19 resistance, the 20 resistance, the 21 resistance, the 22 resistance, the 15 electric capacity, the 17 electric capacity, the 18 electric capacity and diode;
Compensate amplifying circuit is connected to the 4th comparator in-phase input end through the 18 resistance, the first reference voltage that reference voltage circuit exports is connected to the inverting input of the 4th comparator through the 17 resistance; The 15 electric capacity is connected between the in-phase input end of the 4th comparator, inverting input; The output of the 4th comparator connects the 22 resistance, and the 22 resistance other end is connected in totem driver output circuit, and meanwhile, the 22 resistance other end is also connected with the negative pole of diode, the plus earth of diode; Meanwhile, the 22 resistance other end through the 21 resistance feedback to the in-phase input end of the 4th comparator; The negative power end of the 4th comparator connects-12V power supply through the 20 resistance, and meanwhile, the negative power end of the 4th comparator is through the 18 capacity earth; The positive power source terminal of the 4th comparator connects+12V power supply through the 19 resistance, and meanwhile, the positive power source terminal of the 4th comparator is through the 17 capacity earth.
6. limit according to claim 1 controls hybrid integrated circuit frequently, it is characterized in that,
Totem driver output circuit comprises the second triode, the 3rd triode, the 23 resistance, the 24 resistance and the 25 resistance;
The output of hysteresis comparator circuit is connected to the base stage of the second triode and the 3rd triode respectively, and the source electrode of the second triode, the 3rd triode connects altogether; Second triode drain electrode connects+12V power supply through the 23 resistance; Second triode drain electrode is through the 25 grounding through resistance GND; The source electrode of the second triode, the 3rd triode is total to contact and is connected to drive output through the 24 resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829081.6U CN205039790U (en) | 2015-10-23 | 2015-10-23 | Hybrid integrated circuit is controlled frequently to limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829081.6U CN205039790U (en) | 2015-10-23 | 2015-10-23 | Hybrid integrated circuit is controlled frequently to limit |
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| Publication Number | Publication Date |
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| CN205039790U true CN205039790U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520829081.6U Withdrawn - After Issue CN205039790U (en) | 2015-10-23 | 2015-10-23 | Hybrid integrated circuit is controlled frequently to limit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245210A (en) * | 2015-10-23 | 2016-01-13 | 中国兵器工业集团第二一四研究所苏州研发中心 | Frequency limiting control hybrid integrated circuit |
-
2015
- 2015-10-23 CN CN201520829081.6U patent/CN205039790U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245210A (en) * | 2015-10-23 | 2016-01-13 | 中国兵器工业集团第二一四研究所苏州研发中心 | Frequency limiting control hybrid integrated circuit |
| CN105245210B (en) * | 2015-10-23 | 2018-06-05 | 中国兵器工业集团第二一四研究所苏州研发中心 | A kind of limit frequency control hydrid integrated circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160217 Effective date of abandoning: 20180605 |