CN204789795U - A power module circuit for heavy current power device test system - Google Patents
A power module circuit for heavy current power device test system Download PDFInfo
- Publication number
- CN204789795U CN204789795U CN201520424233.4U CN201520424233U CN204789795U CN 204789795 U CN204789795 U CN 204789795U CN 201520424233 U CN201520424233 U CN 201520424233U CN 204789795 U CN204789795 U CN 204789795U
- Authority
- CN
- China
- Prior art keywords
- resistance
- triode
- circuit
- base stage
- emitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Amplifiers (AREA)
Abstract
The utility model discloses a power module circuit for heavy current power device test system, including power driving circuit, power amplifier circuit and measuring circuit, power driving circuit includes current driving circuit and voltage driving circuit, power amplifier circuit includes electric current power amplifier circuit and voltage power amplifier circuit, the measuring circuit includes current measurement circuit and voltage measurement circuit. In this scheme, voltage source and electric current source be independent design respectively, then realizes the pressurization pressure measurement, adds through PC control and flow current surveying, pressurization current surveying, add functions such as flowing the pressure measurement. When carrying out the test of big current parameter, current driving circuit and voltage driving circuit separately -driven power amplifier circuit make the output simultaneously of voltage and electric current, and the measuring circuit is then measured the voltage and the electric current of measured device at the power amplifier output to feed back power driving circuit, power driving circuit returns the measured value to the host computer. This scheme is applicable to heavy current power device test system.
Description
Technical field
The utility model relates to ic test technique field, especially relates to a kind of power module circuitry for super-current power unit test macro.
Background technology
The power device test machine of current development and production generally adopts several module cooperative work, measures the parameter of power device.
When carrying out the test of power device big current parameter, sometimes voltage source needs the driving force possessing big current while stable output voltage.And current isolation voltage source module maximum current drive ability is mostly at below 100A, the test of some big current parameter cannot be met.
State Intellectual Property Office of the People's Republic of China disclosed the patent documentation (notification number: CN203705600U) that name is called " a kind of triode test circuit " on 07 09th, 2014, triode test circuit disclosed in it comprises for being held to the B of NPN type triode pin access, C holds, E end and the C ' end accessing to PNP type triode pin, B ' end and described E hold, also comprise the first regulated power supply, first change-over switch, first voltage display device, second current display device, second regulated power supply, second change-over switch, second voltage display device, second current display device and the 3rd change-over switch.This scheme cannot provide sufficiently high current driving ability, can not meet the test of big current parameter.
Summary of the invention
When the utility model mainly overcomes big current parameter testing in prior art, the technical matters of isolated voltage source current driving ability deficiency, provides a kind of and has the power module circuitry for super-current power unit test macro that test macro also independently can measure some big current parameter of one's own.
The utility model is mainly solved by following technical proposals for above-mentioned technical matters: a kind of power module circuitry for super-current power unit test macro, comprise power driving circuit, power amplifier and metering circuit, described power driving circuit comprises current driving circuit and Voltag driving circuit, described power amplifier comprises current amplifier circuit and voltage power amplifier, described metering circuit comprises current measurement circuit and tension measuring circuit, the output terminal of described current driving circuit is connected to the input end of current amplifier circuit, the output terminal of described Voltag driving circuit is connected to the input end of voltage power amplifier, the output terminal of described current measurement circuit is connected to the input end of current driving circuit, the output terminal of described tension measuring circuit is connected to the input end of Voltag driving circuit, the output terminal of described current amplifier circuit and the output terminal of voltage power amplifier are all connected to measured device, the input end of described current measurement circuit and the input end of tension measuring circuit are all connected to measured device, described current driving circuit is also all connected with host computer with Voltag driving circuit.
In this programme, voltage source and current source independently design, and then realize pressurization pressure measurement by PC control, add stream flow measurement, pressurization flow measurement, add function such as stream pressure measurement etc.When carrying out big current parameter testing, current driving circuit and Voltag driving circuit drive power amplifier respectively, voltage and current can be exported simultaneously, metering circuit is then measured at the voltage and current of power amplifier output terminal to measured device (DUT), and feed back to power driving circuit, measured value is turned back to host computer by power driving circuit, carries out the test result that computing obtains being correlated with in software.
As preferably, described current driving circuit comprises resistance R5, resistance R6, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, operational amplifier U12, electric capacity C6, triode T1, triode T2, triode T3, triode T4, triode T5 and diode D7; The inverting input of described operational amplifier U12 connects host computer and current measurement circuit, between the inverting input that resistance R6 and electric capacity C6 is connected across operational amplifier U12 after connecting and output terminal, resistance R5 one end ground connection, the in-phase input end of other end concatenation operation amplifier U12; The output terminal of resistance R10 one end concatenation operation amplifier U12, the base stage of other end connecting triode T1; The emitter of triode T1 is by resistance R11 ground connection, and collector is by the base stage of resistance R13 connecting triode T3; The emitter of one end connecting triode T1 of resistance R12, the collector of other end connecting triode T2; The base stage of triode T2 is by resistance R19 ground connection, and emitter connects power supply+VP by resistance R15; The positive pole of diode D7 connects power supply+VP, the base stage of negative pole connecting triode T2; The collector of triode T4 connects power supply+VP, the collector of the base stage connecting triode T2 of triode T4; Between the emitter that resistance R17 is connected across triode T4 and base stage; The collector of triode T2 is also connected to the collector of triode T3; The base stage of triode T3 is connected to power supply-VP by resistance R14, and the emitter of triode T3 is connected to power supply-VP by resistance R16; The collector of the base stage connecting triode T3 of triode T5, the collector of triode T5 connects power supply-VP; Between the emitter that resistance R18 is connected across triode T5 and base stage; The output terminal of the emitter of triode T4 and the transmitting of triode T5 very current driving circuit.
Current driving circuit is primarily of error amplifying circuit and prime power amplification circuit composition, the bias voltage that host computer sends and the voltage that metering circuit feeds back compare, error amplification is carried out by integrating circuit, drive prime power amplifier, prime power amplifier is then responsible for drive current power amplifier.
As preferably, described Voltag driving circuit comprises resistance R43, resistance R44, resistance R45, resistance R46, resistance R47, resistance R48, resistance R49, resistance R50, resistance R51, resistance R52, resistance R53, resistance R54, resistance R55, resistance R80, electric capacity C22, operational amplifier U18, diode D25, diode D28, triode T8, triode T9, triode T10, triode T11, triode T12, triode T13, voltage stabilizing diode Z5 and voltage stabilizing diode Z6; The inverting input of described operational amplifier U18 connects host computer and current measurement circuit, and in-phase input end is by resistance R44 ground connection; Between the inverting input that resistance R43 and electric capacity C22 is connected across operational amplifier U18 after connecting and output terminal; The output terminal of the first end concatenation operation amplifier U18 of resistance R45, the second end connects the base stage of diode T8 and the base stage of diode T9 simultaneously; The collector of diode T8 connects power supply+VP by resistance R50, and emitter connects the negative pole of diode D25 by resistance R48; The plus earth of diode D25; The first end of resistance R46 connects the negative pole of diode D25, and the second end connects power supply-1.5V; The emitter of the first end connecting triode T8 of resistance R51, second end of the second end contact resistance R54, the emitter of the first end connecting triode T9 of resistance R54; The emitter of triode T9 also connects the positive pole of diode D28, the minus earth of diode D28 by resistance R49; The first end of resistance R47 connects the positive pole of diode D28, and the second end connects power supply+1.5V; The collector of triode T9 connects power supply-VP by resistance R53; The collector of the base stage connecting triode T8 of triode T10, the emitter of triode T10 connects power supply+VP by resistance R52, the base stage of the collector connecting triode T12 of triode T10, the collector of triode T12 connects power supply+VP, the emitter of the emitter connecting triode T13 of triode T12; The collector of the base stage connecting triode T9 of triode T11, the emitter of triode T11 connects power supply-VP by resistance R55, the base stage of the collector connecting triode T13 of triode T11, the base stage of the base stage of triode T13 also connecting triode T12; The collector of triode T13 connects power supply-VP; The collector of the positive pole connecting triode T11 of voltage stabilizing diode Z6, the negative pole of voltage stabilizing diode Z6 connects the negative pole of voltage stabilizing diode Z5, second end of the positive pole contact resistance R51 of voltage stabilizing diode Z5, between the base stage that resistance R80 is connected across triode T12 and emitter; The output terminal of second end of resistance R51 and the transmitting of triode T12 very Voltag driving circuit.
The principle of work of Voltag driving circuit is similar to current driving circuit, primarily of error amplifying circuit and prime power amplification circuit composition, the bias voltage that host computer sends and the voltage that metering circuit feeds back compare, error amplification is carried out by integrating circuit, drive prime power amplifier, prime power amplifier is then responsible for driving voltage power amplifier.With current driving circuit unlike, Voltag driving circuit is the structure of positive negative sense full symmetric, and the prime power amplifier forward of current driving circuit is a constant current source.
As preferably, described current amplifier circuit comprises inlet circuit and final circuit, and described inlet circuit comprises resistance R101, resistance R102, resistance R103, resistance R104, resistance R105, resistance R106, resistance R107, resistance R108, triode T101, triode T102, triode T103 and triode T104; The base stage of triode T101 is connected with the base stage of triode T103, and the collector of triode T101 and the collector of triode T103 are all connected to power supply+5V; Between the base stage that resistance R101 is connected across triode T101 and emitter, between the emitter that resistance R105 is connected across triode T103 and base stage; The emitter of the first end connecting triode T101 of resistance R103, second end of the second end contact resistance R107; The emitter of the first end connecting triode T103 of resistance R107, the second end is also connected to final circuit; The base stage of triode T102 is connected with the base stage of triode T104, and the collector of triode T102 and the collector of triode T104 are all connected to power supply-5V; Between the base stage that resistance R102 is connected across triode T102 and emitter, between the emitter that resistance R106 is connected across triode T104 and base stage; The emitter of the first end connecting triode T102 of resistance R104, second end of the second end contact resistance R108; The emitter of the first end connecting triode T104 of resistance R108, the second end is also connected to final circuit; The base stage of triode T101 and the base stage of triode T102 are the input end of current amplifier circuit; Final circuit comprises several triodes and several resistance, the two halves that the triode of final circuit is divided into quantity equal; The all base stages of half triode are connected to second end of resistance R107, and all collectors connect power supply+5V, and all emitters respectively connect the output terminal of current amplifier circuit by a resistance; The all base stages of second half triode are connected to second end of resistance R108, and all collectors connect power supply-5V, and all emitters respectively connect the output terminal of current amplifier circuit by a resistance.
The input end of power amplifier adopts darlington structure, and positive negative sense full symmetric, the multiple pliotron of final stage carries out parallel connection.In order to realize the currents match of voltage source and current source, voltage power amplifier and current amplifier circuit are duplicate, and such configuration can allow voltage source possess the current output capability same with current source.
As preferably, described current measurement circuit comprises resistance R20, resistance R24, resistance R25, resistance R26, resistance R30, resistance R31, resistance R32, resistance R33, resistance R36, operational amplifier U13, operational amplifier U14, operational amplifier U15, operational amplifier U16, switch U17C and switch U17D; The in-phase input end of described operational amplifier U13 is connected to measured device by resistance R20, and inverting input connects output terminal, and output terminal is also connected to the inverting input of operational amplifier U15 by resistance R24; The in-phase input end of operational amplifier U14 is connected to measured device by resistance R26, and inverting input connects output terminal, and output terminal is also connected to the inverting input of operational amplifier U16 by resistance R30; The output terminal of operational amplifier U15 passes through the inverting input of resistance R31 concatenation operation amplifier U16; The in-phase input end ground connection of operational amplifier U15; Between the inverting input that resistance R25 is connected across operational amplifier U15 and output terminal; The in-phase input end ground connection of operational amplifier U16, the first end of output terminal contact resistance R36, second end of resistance R36 connects current driving circuit; Resistance R33 and switch U17C is connected across between second end of resistance R36 and the inverting input of operational amplifier U16 after connecting; Resistance R32 and switch U17D is connected across between second end of resistance R36 and the inverting input of operational amplifier U16 after connecting.
Metering circuit high pressure follow circuit measures electric current and the voltage of DUT, and last rreturn value is magnitude of voltage, by corresponding scale operation, is maintained in the input voltage range of A/D chip by measured value.Current measurement circuit is also the same with the principle of tension measuring circuit, can carry out the measurement of electric current and voltage simultaneously.
The beneficial effect that the utility model brings is, high current drive capability can be provided, possess pressurization pressure measurement simultaneously, add stream flow measurement, pressurization flow measurement, add function such as stream pressure measurement etc., independently can carry out the test of the big current parameters such as VDSON, RDON, VFSD, shorten measurement circuit, improve testing efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of circuit theory connection layout of the present utility model;
Fig. 2 is the circuit diagram of a kind of current driving circuit of the present utility model;
Fig. 3 is the circuit diagram of a kind of Voltag driving circuit of the present utility model;
Fig. 4 is the circuit diagram of a kind of current amplifier circuit of the present utility model;
Fig. 5 is the circuit diagram of a kind of current measurement circuit of the present utility model;
Wherein: 1, power driving circuit, 2, power amplifier, 3, metering circuit, 4, DUT, 5, host computer, 11, current driving circuit, 12, Voltag driving circuit, 21, current amplifier circuit, 22, voltage power amplifier, 31, current measurement circuit, 32, tension measuring circuit.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of power module circuitry for super-current power unit test macro of the present embodiment, as shown in Figure 1, comprise power driving circuit 1, power amplifier 2 and metering circuit 3, power driving circuit comprises current driving circuit 11 and Voltag driving circuit 12, power amplifier comprises current amplifier circuit 21 and voltage power amplifier 22, and metering circuit comprises tension measuring circuit 31 and current measurement circuit 32.The input of power driving circuit 1 is connected with host computer 5, the input of current driving circuit 11 is connected with the output of current measurement circuit 31, the input of Voltag driving circuit 12 is connected with the output of tension measuring circuit, the output of current driving circuit 11 is connected with the input of current amplifier circuit 21, the output of Voltag driving circuit 12 is connected with the input of voltage power amplifier 22, and the output of power amplifier 2 is connected with DUT4 and metering circuit 3.Power driving circuit is responsible for the communication of host computer, is driven power amplifier and gather the data that metering circuit returns.
As shown in Figure 2, current driving circuit comprises resistance R5, resistance R6, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, operational amplifier U12, electric capacity C6, triode T1, triode T2, triode T3, triode T4, triode T5 and diode D7; The inverting input of described operational amplifier U12 connects host computer and current measurement circuit, between the inverting input that resistance R6 and electric capacity C6 is connected across operational amplifier U12 after connecting and output terminal, resistance R5 one end ground connection, the in-phase input end of other end concatenation operation amplifier U12; The output terminal of resistance R10 one end concatenation operation amplifier U12, the base stage of other end connecting triode T1; The emitter of triode T1 is by resistance R11 ground connection, and collector is by the base stage of resistance R13 connecting triode T3; The emitter of one end connecting triode T1 of resistance R12, the collector of other end connecting triode T2; The base stage of triode T2 is by resistance R19 ground connection, and emitter connects power supply+VP by resistance R15; The positive pole of diode D7 connects power supply+VP, the base stage of negative pole connecting triode T2; The collector of triode T4 connects power supply+VP, the collector of the base stage connecting triode T2 of triode T4; Between the emitter that resistance R17 is connected across triode T4 and base stage; The collector of triode T2 is also connected to the collector of triode T3; The base stage of triode T3 is connected to power supply-VP by resistance R14, and the emitter of triode T3 is connected to power supply-VP by resistance R16; The collector of the base stage connecting triode T3 of triode T5, the collector of triode T5 connects power supply-VP; Between the emitter that resistance R18 is connected across triode T5 and base stage; The output terminal of the emitter of triode T4 and the transmitting of triode T5 very current driving circuit.
Current driving circuit is primarily of error amplifying circuit and prime power amplification circuit composition, the bias voltage that host computer sends and the voltage that metering circuit feeds back compare, error amplification is carried out by integrating circuit, drive prime power amplifier, prime power amplifier is then responsible for drive current power amplifier.
As shown in Figure 3, Voltag driving circuit comprises resistance R43, resistance R44, resistance R45, resistance R46, resistance R47, resistance R48, resistance R49, resistance R50, resistance R51, resistance R52, resistance R53, resistance R54, resistance R55, resistance R80, electric capacity C22, operational amplifier U18, diode D25, diode D28, triode T8, triode T9, triode T10, triode T11, triode T12, triode T13, voltage stabilizing diode Z5 and voltage stabilizing diode Z6; The inverting input of described operational amplifier U18 connects host computer and current measurement circuit, and in-phase input end is by resistance R44 ground connection; Between the inverting input that resistance R43 and electric capacity C22 is connected across operational amplifier U18 after connecting and output terminal; The output terminal of the first end concatenation operation amplifier U18 of resistance R45, the second end connects the base stage of diode T8 and the base stage of diode T9 simultaneously; The collector of diode T8 connects power supply+VP by resistance R50, and emitter connects the negative pole of diode D25 by resistance R48; The plus earth of diode D25; The first end of resistance R46 connects the negative pole of diode D25, and the second end connects power supply-1.5V; The emitter of the first end connecting triode T8 of resistance R51, second end of the second end contact resistance R54, the emitter of the first end connecting triode T9 of resistance R54; The emitter of triode T9 also connects the positive pole of diode D28, the minus earth of diode D28 by resistance R49; The first end of resistance R47 connects the positive pole of diode D28, and the second end connects power supply+1.5V; The collector of triode T9 connects power supply-VP by resistance R53; The collector of the base stage connecting triode T8 of triode T10, the emitter of triode T10 connects power supply+VP by resistance R52, the base stage of the collector connecting triode T12 of triode T10, the collector of triode T12 connects power supply+VP, the emitter of the emitter connecting triode T13 of triode T12; The collector of the base stage connecting triode T9 of triode T11, the emitter of triode T11 connects power supply-VP by resistance R55, the base stage of the collector connecting triode T13 of triode T11, the base stage of the base stage of triode T13 also connecting triode T12; The collector of triode T13 connects power supply-VP; The collector of the positive pole connecting triode T11 of voltage stabilizing diode Z6, the negative pole of voltage stabilizing diode Z6 connects the negative pole of voltage stabilizing diode Z5, second end of the positive pole contact resistance R51 of voltage stabilizing diode Z5, between the base stage that resistance R80 is connected across triode T12 and emitter; The output terminal of second end of resistance R51 and the transmitting of triode T12 very Voltag driving circuit.
The principle of work of Voltag driving circuit is similar to current driving circuit, primarily of error amplifying circuit and prime power amplification circuit composition, the bias voltage that host computer sends and the voltage that metering circuit feeds back compare, error amplification is carried out by integrating circuit, drive prime power amplifier, prime power amplifier is then responsible for driving voltage power amplifier.With current driving circuit unlike, Voltag driving circuit is the structure of positive negative sense full symmetric, and the prime power amplifier forward of current driving circuit is a constant current source.
As shown in Figure 4, current amplifier circuit comprises inlet circuit and final circuit, and described inlet circuit comprises resistance R101, resistance R102, resistance R103, resistance R104, resistance R105, resistance R106, resistance R107, resistance R108, triode T101, triode T102, triode T103 and triode T104; The base stage of triode T101 is connected with the base stage of triode T103, and the collector of triode T101 and the collector of triode T103 are all connected to power supply+5V; Between the base stage that resistance R101 is connected across triode T101 and emitter, between the emitter that resistance R105 is connected across triode T103 and base stage; The emitter of the first end connecting triode T101 of resistance R103, second end of the second end contact resistance R107; The emitter of the first end connecting triode T103 of resistance R107, the second end is also connected to final circuit; The base stage of triode T102 is connected with the base stage of triode T104, and the collector of triode T102 and the collector of triode T104 are all connected to power supply-5V; Between the base stage that resistance R102 is connected across triode T102 and emitter, between the emitter that resistance R106 is connected across triode T104 and base stage; The emitter of the first end connecting triode T102 of resistance R104, second end of the second end contact resistance R108; The emitter of the first end connecting triode T104 of resistance R108, the second end is also connected to final circuit; The base stage of triode T101 and the base stage of triode T102 are the input end of current amplifier circuit; Final circuit comprises several triodes and several resistance, the two halves that the triode of final circuit is divided into quantity equal; The all base stages of half triode are connected to second end of resistance R107, and all collectors connect power supply+5V, and all emitters respectively connect the output terminal of current amplifier circuit by a resistance; The all base stages of second half triode are connected to second end of resistance R108, and all collectors connect power supply-5V, and all emitters respectively connect the output terminal of current amplifier circuit by a resistance.
The input end of power amplifier adopts darlington structure, and positive negative sense full symmetric, the multiple pliotron of final stage carries out parallel connection.In order to realize the currents match of voltage source and current source, voltage power amplifier and current amplifier circuit are duplicate, and such configuration can allow voltage source possess the current output capability same with current source.
As shown in Figure 5, current measurement circuit comprises resistance R20, resistance R24, resistance R25, resistance R26, resistance R30, resistance R31, resistance R32, resistance R33, resistance R36, operational amplifier U13, operational amplifier U14, operational amplifier U15, operational amplifier U16, switch U17C and switch U17D; The in-phase input end of described operational amplifier U13 is connected to measured device by resistance R20, and inverting input connects output terminal, and output terminal is also connected to the inverting input of operational amplifier U15 by resistance R24; The in-phase input end of operational amplifier U14 is connected to measured device by resistance R26, and inverting input connects output terminal, and output terminal is also connected to the inverting input of operational amplifier U16 by resistance R30; The output terminal of operational amplifier U15 passes through the inverting input of resistance R31 concatenation operation amplifier U16; The in-phase input end ground connection of operational amplifier U15; Between the inverting input that resistance R25 is connected across operational amplifier U15 and output terminal; The in-phase input end ground connection of operational amplifier U16, the first end of output terminal contact resistance R36, second end of resistance R36 connects current driving circuit; Resistance R33 and switch U17C is connected across between second end of resistance R36 and the inverting input of operational amplifier U16 after connecting; Resistance R32 and switch U17D is connected across between second end of resistance R36 and the inverting input of operational amplifier U16 after connecting.
Metering circuit high pressure follow circuit measures electric current and the voltage of DUT, and last rreturn value is magnitude of voltage, by corresponding scale operation, is maintained in the input voltage range of A/D chip by measured value.Current measurement circuit is also the same with the principle of tension measuring circuit, can carry out the measurement of electric current and voltage simultaneously.
Specific embodiment described herein is only to the innovation explanation for example.This programme person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from the spirit of the innovation or surmount the scope that appended claims defines.
Although more employ the term such as driving circuit, power amplifier herein, do not get rid of the possibility using other term.These terms are used to be only used to describe more easily and explain the essence of this programme; The restriction that they are construed to any one additional is all contrary with the innovation spirit.
Claims (5)
1. the power module circuitry for super-current power unit test macro, it is characterized in that, comprise power driving circuit, power amplifier and metering circuit, described power driving circuit comprises current driving circuit and Voltag driving circuit, described power amplifier comprises current amplifier circuit and voltage power amplifier, described metering circuit comprises current measurement circuit and tension measuring circuit, the output terminal of described current driving circuit is connected to the input end of current amplifier circuit, the output terminal of described Voltag driving circuit is connected to the input end of voltage power amplifier, the output terminal of described current measurement circuit is connected to the input end of current driving circuit, the output terminal of described tension measuring circuit is connected to the input end of Voltag driving circuit, the output terminal of described current amplifier circuit and the output terminal of voltage power amplifier are all connected to measured device, the input end of described current measurement circuit and the input end of tension measuring circuit are all connected to measured device, described current driving circuit is also all connected with host computer with Voltag driving circuit.
2. the power module circuitry for super-current power unit test macro according to claim 1, it is characterized in that, described current driving circuit comprises resistance R5, resistance R6, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, operational amplifier U12, electric capacity C6, triode T1, triode T2, triode T3, triode T4, triode T5 and diode D7; The inverting input of described operational amplifier U12 connects host computer and current measurement circuit, between the inverting input that resistance R6 and electric capacity C6 is connected across operational amplifier U12 after connecting and output terminal, resistance R5 one end ground connection, the in-phase input end of other end concatenation operation amplifier U12; The output terminal of resistance R10 one end concatenation operation amplifier U12, the base stage of other end connecting triode T1; The emitter of triode T1 is by resistance R11 ground connection, and collector is by the base stage of resistance R13 connecting triode T3; The emitter of one end connecting triode T1 of resistance R12, the collector of other end connecting triode T2; The base stage of triode T2 is by resistance R19 ground connection, and emitter connects power supply+VP by resistance R15; The positive pole of diode D7 connects power supply+VP, the base stage of negative pole connecting triode T2; The collector of triode T4 connects power supply+VP, the collector of the base stage connecting triode T2 of triode T4; Between the emitter that resistance R17 is connected across triode T4 and base stage; The collector of triode T2 is also connected to the collector of triode T3; The base stage of triode T3 is connected to power supply-VP by resistance R14, and the emitter of triode T3 is connected to power supply-VP by resistance R16; The collector of the base stage connecting triode T3 of triode T5, the collector of triode T5 connects power supply-VP; Between the emitter that resistance R18 is connected across triode T5 and base stage; The output terminal of the emitter of triode T4 and the transmitting of triode T5 very current driving circuit.
3. the power module circuitry for super-current power unit test macro according to claim 1, it is characterized in that, described Voltag driving circuit comprises resistance R43, resistance R44, resistance R45, resistance R46, resistance R47, resistance R48, resistance R49, resistance R50, resistance R51, resistance R52, resistance R53, resistance R54, resistance R55, resistance R80, electric capacity C22, operational amplifier U18, diode D25, diode D28, triode T8, triode T9, triode T10, triode T11, triode T12, triode T13, voltage stabilizing diode Z5 and voltage stabilizing diode Z6, the inverting input of described operational amplifier U18 connects host computer and current measurement circuit, and in-phase input end is by resistance R44 ground connection, between the inverting input that resistance R43 and electric capacity C22 is connected across operational amplifier U18 after connecting and output terminal, the output terminal of the first end concatenation operation amplifier U18 of resistance R45, the second end connects the base stage of diode T8 and the base stage of diode T9 simultaneously, the collector of diode T8 connects power supply+VP by resistance R50, and emitter connects the negative pole of diode D25 by resistance R48, the plus earth of diode D25, the first end of resistance R46 connects the negative pole of diode D25, and the second end connects power supply-1.5V, the emitter of the first end connecting triode T8 of resistance R51, second end of the second end contact resistance R54, the emitter of the first end connecting triode T9 of resistance R54, the emitter of triode T9 also connects the positive pole of diode D28, the minus earth of diode D28 by resistance R49, the first end of resistance R47 connects the positive pole of diode D28, and the second end connects power supply+1.5V, the collector of triode T9 connects power supply-VP by resistance R53, the collector of the base stage connecting triode T8 of triode T10, the emitter of triode T10 connects power supply+VP by resistance R52, the base stage of the collector connecting triode T12 of triode T10, the collector of triode T12 connects power supply+VP, the emitter of the emitter connecting triode T13 of triode T12, the collector of the base stage connecting triode T9 of triode T11, the emitter of triode T11 connects power supply-VP by resistance R55, the base stage of the collector connecting triode T13 of triode T11, the base stage of the base stage of triode T13 also connecting triode T12, the collector of triode T13 connects power supply-VP, the collector of the positive pole connecting triode T11 of voltage stabilizing diode Z6, the negative pole of voltage stabilizing diode Z6 connects the negative pole of voltage stabilizing diode Z5, second end of the positive pole contact resistance R51 of voltage stabilizing diode Z5, between the base stage that resistance R80 is connected across triode T12 and emitter, the output terminal of second end of resistance R51 and the transmitting of triode T12 very Voltag driving circuit.
4. the power module circuitry for super-current power unit test macro according to claim 1 or 2 or 3, it is characterized in that, described current amplifier circuit comprises inlet circuit and final circuit, and described inlet circuit comprises resistance R101, resistance R102, resistance R103, resistance R104, resistance R105, resistance R106, resistance R107, resistance R108, triode T101, triode T102, triode T103 and triode T104; The base stage of triode T101 is connected with the base stage of triode T103, and the collector of triode T101 and the collector of triode T103 are all connected to power supply+5V; Between the base stage that resistance R101 is connected across triode T101 and emitter, between the emitter that resistance R105 is connected across triode T103 and base stage; The emitter of the first end connecting triode T101 of resistance R103, second end of the second end contact resistance R107; The emitter of the first end connecting triode T103 of resistance R107, the second end is also connected to final circuit; The base stage of triode T102 is connected with the base stage of triode T104, and the collector of triode T102 and the collector of triode T104 are all connected to power supply-5V; Between the base stage that resistance R102 is connected across triode T102 and emitter, between the emitter that resistance R106 is connected across triode T104 and base stage; The emitter of the first end connecting triode T102 of resistance R104, second end of the second end contact resistance R108; The emitter of the first end connecting triode T104 of resistance R108, the second end is also connected to final circuit; The base stage of triode T101 and the base stage of triode T102 are the input end of current amplifier circuit; Final circuit comprises several triodes and several resistance, the two halves that the triode of final circuit is divided into quantity equal; The all base stages of half triode are connected to second end of resistance R107, and all collectors connect power supply+5V, and all emitters respectively connect the output terminal of current amplifier circuit by a resistance; The all base stages of second half triode are connected to second end of resistance R108, and all collectors connect power supply-5V, and all emitters respectively connect the output terminal of current amplifier circuit by a resistance.
5. the power module circuitry for super-current power unit test macro according to claim 4, it is characterized in that, described current measurement circuit comprises resistance R20, resistance R24, resistance R25, resistance R26, resistance R30, resistance R31, resistance R32, resistance R33, resistance R36, operational amplifier U13, operational amplifier U14, operational amplifier U15, operational amplifier U16, switch U17C and switch U17D; The in-phase input end of described operational amplifier U13 is connected to measured device by resistance R20, and inverting input connects output terminal, and output terminal is also connected to the inverting input of operational amplifier U15 by resistance R24; The in-phase input end of operational amplifier U14 is connected to measured device by resistance R26, and inverting input connects output terminal, and output terminal is also connected to the inverting input of operational amplifier U16 by resistance R30; The output terminal of operational amplifier U15 passes through the inverting input of resistance R31 concatenation operation amplifier U16; The in-phase input end ground connection of operational amplifier U15; Between the inverting input that resistance R25 is connected across operational amplifier U15 and output terminal; The in-phase input end ground connection of operational amplifier U16, the first end of output terminal contact resistance R36, second end of resistance R36 connects current driving circuit; Resistance R33 and switch U17C is connected across between second end of resistance R36 and the inverting input of operational amplifier U16 after connecting; Resistance R32 and switch U17D is connected across between second end of resistance R36 and the inverting input of operational amplifier U16 after connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520424233.4U CN204789795U (en) | 2015-06-18 | 2015-06-18 | A power module circuit for heavy current power device test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520424233.4U CN204789795U (en) | 2015-06-18 | 2015-06-18 | A power module circuit for heavy current power device test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204789795U true CN204789795U (en) | 2015-11-18 |
Family
ID=54529812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520424233.4U Active CN204789795U (en) | 2015-06-18 | 2015-06-18 | A power module circuit for heavy current power device test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204789795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977442A (en) * | 2015-06-18 | 2015-10-14 | 杭州长川科技股份有限公司 | Power module circuit for high-current power device test system |
| CN115793770A (en) * | 2023-02-07 | 2023-03-14 | 杭州长川科技股份有限公司 | Current expansion device, power supply board card and automatic test equipment |
-
2015
- 2015-06-18 CN CN201520424233.4U patent/CN204789795U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977442A (en) * | 2015-06-18 | 2015-10-14 | 杭州长川科技股份有限公司 | Power module circuit for high-current power device test system |
| CN115793770A (en) * | 2023-02-07 | 2023-03-14 | 杭州长川科技股份有限公司 | Current expansion device, power supply board card and automatic test equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202693755U (en) | Comprehensive test device for integrated circuit | |
| CN204789795U (en) | A power module circuit for heavy current power device test system | |
| CN104180748A (en) | Detecting circuit of displacement sensor | |
| CN102184272B (en) | Virtual measuring and controlling system | |
| CN104977442A (en) | Power module circuit for high-current power device test system | |
| CN203657732U (en) | Detecting circuit of displacement sensor | |
| CN203870226U (en) | DC electronic load under constant current work mode | |
| CN205016121U (en) | Open sensor teaching experiment case | |
| CN204314406U (en) | Module test fixture and programmable interface circuit thereof | |
| CN204087580U (en) | A kind of teaching EDA and SOPC brassboard of portable four line unifications | |
| CN202330605U (en) | Wiring automatic detection bread board | |
| CN104749078A (en) | PM2.5 concentration detector | |
| CN105162451B (en) | A kind of current transfer device for soft strater | |
| CN201402317Y (en) | Verifying unit for resistive current tester of zinc oxide arrester | |
| CN103929160B (en) | Measuring instrument with clock driver circuit | |
| CN206431078U (en) | The signal processing circuit of harmful gas sensor | |
| CN209513895U (en) | A kind of current sampling circuit for motor control | |
| CN206490664U (en) | Analog quantity modulate circuit | |
| CN202330515U (en) | Multi-measuring range current measurement parallel display unit | |
| CN206147030U (en) | Channel controller multi -serial port short circuit detection circuitry | |
| CN206756915U (en) | A kind of generative circuit of high precision electro flow pattern detection signal | |
| CN212811640U (en) | Multifunctional amplifier | |
| CN201060271Y (en) | Dual laterolog instrument main monitoring thick film circuit | |
| CN205017301U (en) | Data acquisition circuit | |
| CN103699466B (en) | Fan communication test device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |