CN207968334U - A kind of current/voltage converter circuit - Google Patents
A kind of current/voltage converter circuit Download PDFInfo
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- CN207968334U CN207968334U CN201820472157.8U CN201820472157U CN207968334U CN 207968334 U CN207968334 U CN 207968334U CN 201820472157 U CN201820472157 U CN 201820472157U CN 207968334 U CN207968334 U CN 207968334U
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Abstract
The utility model discloses a kind of current/voltage converter circuit, the accuracy for improving current/voltage-converted.The conversion circuit includes：Input terminal, for receiving the externally input current signal converted；Output end, for providing output voltage；The current/voltage converter circuit being connected between input terminal and output end, current/voltage converter circuit include：1 pair of 2 path analoging switch, transformer and conversion sub-circuit, 1 pair of 2 path analoging switch are connected between input terminal and the primary of transformer, and the secondary of transformer is connected to the input terminal of conversion sub-circuit, and the output end of conversion sub-circuit connects output end；The size of current for making transformer secondary output export by the switching of 1 pair of 2 path analoging switch is equal but direction is opposite, so as to realize that DC current signal is changed into ac current signal, circuit isolation is realized with transformer, is realized using conversion sub-circuit V and ac current signal is converted to d. c. voltage signal.
Description
Technical field
The utility model is related to electronic circuit signal switch technology field more particularly to a kind of current/voltage converter circuits.
Background technology
During modern industrial production, it is often necessary to all kinds of non-electrical physical quantitys, such as temperature, flow, pressure, humidity
Etc. measuring.In order to avoid there is the problems such as signal decaying and interference in remote transmission process, it is common practice to by these
Non-electrical physical quantity is converted into current signal and is transmitted at a distance, for example temperature signal is converted into the electric current letter of 0~10mA DC
Number, then the current signal of 0~10mA DC is converted to in overall control center the voltage signal etc. of 0~5V DC again, with further real
Now to the measurement of non-electrical physical quantity, complete this conversion is electric current to voltage (current/voltage) conversion circuit.
Current current/voltage converter circuit is mainly the non-isolated conversion electricity being made of operational amplifier and sample resistance
Road.This circuit is more demanding to the acquisition of electric current and conversion component, due to using non-isolated transfer principle circuit, adding
The imperfection of upper operational amplifier and other elements, with the variation of signal code, the voltage of the reverse side of amplifier can be with
The variation of the not upper zero adjustment voltage of track, causes non-linear increasing, leads to the loop in circuit when carrying out current/voltage-converted
Pole is introduced in characteristic, to increase the phase shift of system, causes the unstable of current/voltage converter circuit, in wideband noise
Interference under generate oscillation, reduce the accuracy of current/voltage-converted.
As it can be seen that current current/voltage converter circuit is mainly non-isolated conversion circuit so that current/voltage-converted
Accuracy is relatively low.
Utility model content
In view of the above-mentioned problems, a kind of current/voltage converter circuit of the utility model, for improving current/voltage-converted
Accuracy.
In order to solve the above technical problems, the utility model provides a kind of current/voltage converter circuit, the conversion circuit packet
It includes：
Input terminal, for receiving the externally input current signal converted；
Output end, for providing output voltage；
The current/voltage converter circuit being connected between the input terminal and the output end, the current/voltage-converted
Circuit includes：1 pair of 2 path analoging switch, transformer and conversion sub-circuit, 1 pair of 2 path analoging switch are connected to the input terminal
Between the primary of the transformer, the secondary of the transformer is connected to the conversion sub-circuit, and the conversion sub-circuit connects
Connect the output end；
Wherein, 1 pair of 2 path analoging switch includes an input terminal, two output ends and a control terminal, described two
The first output end in output end connects primary first point of the transformer, the second output terminal in described two output ends
Connect the primary second point of the transformer.
Optionally, the input terminal has first terminal and Second terminal, the first terminal of the input terminal and the change
The primary intermediate point of depressor connects, and the Second terminal is connect with the input terminal of 1 pair of 2 path analoging switch；
The control terminal of 1 pair of 2 path analoging switch connects externally input square wave control signal, in first output end
Switch between the second output terminal, to provide direction equal in magnitude opposite electric current for the conversion sub-circuit；Wherein, institute
The duty ratio for stating square wave control signal is 1/2.
Optionally, the conversion sub-circuit includes the first operational amplifier, second operational amplifier and the first diode, the
Two diodes and first resistor and second resistance；
Wherein, first point secondary and the first electricity of the in-phase input end of first operational amplifier and the transformer
One end of resistance connects, and the reverse input end of first amplifier is connect with the output end of the conversion sub-circuit, and described first
The output end of operational amplifier is connect with the anode of first diode, the cathode of first diode and conversion
The output end of circuit connects；
The in-phase input end of the second operational amplifier and the secondary second point and second resistance of the transformer
One end connects, and the reverse input end of the second operational amplifier is connect with the output end of the conversion sub-circuit, and described second
The output end of operational amplifier is connect with the anode of second diode, the cathode of second diode and conversion
The output end of circuit connects；
The other end of the first resistor is connected with the other end of the second resistance, and is connected to being total to for the output end
With ground.
Optionally, the resistance value of the first resistor is identical with the resistance value of the second resistance.
Optionally, the conversion circuit further includes：Voltage regulator circuit, the input terminal connection of the voltage regulator circuit
The output end of the output end of the conversion sub-circuit, the voltage regulator circuit connects the output end；
Wherein, the voltage regulator circuit includes variable resistance and fixed resistance, adjusts the variable resistance, to adjust
Save the voltage value of the output end output.
Optionally, the variable resistance and fixed resistance permissible accuracy and the conversion circuit permissible accuracy are high by one
A magnitude.
Optionally, the conversion circuit further includes first filter, and the first filter is connected to described converted
Between current signal and the switch and the primary of the transformer, for being filtered by switching current signal to described.
Optionally, the conversion circuit further includes second filter, and the second filter is connected to the conversion electricity
Between the output end on road and the voltage regulator circuit input terminal, the voltage for being exported to the conversion sub-circuit is filtered
Wave.
Optionally, described by switching current signal is direct current signal, and current value range is 0~10mA, and the output end is defeated
The voltage gone out is DC voltage, ranging from 0~5V of voltage value.
The current/voltage converter circuit that the utility model embodiment provides uses transformer as isolation element so that
Conversion circuit is isolation conversion circuit.Acquisition and conversion member device of the non-isolated conversion circuit to electric current in compared to the prior art
Part is more demanding, and the conversion circuit that the utility model embodiment provides requires relatively low, drop to the acquisition of electric current and conversion component
Influence of the imperfection of low operational amplifier and other elements to entire conversion circuit, to enhance anti-interference,
Improve the accuracy of current/voltage-converted.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for the current/voltage converter circuit that the utility model embodiment provides；
Fig. 2 is a kind of structural schematic diagram for the current/voltage converter circuit that the utility model embodiment provides；
Fig. 3 is a kind of structural schematic diagram for the current/voltage converter circuit that the utility model embodiment provides；
Fig. 4 is a kind of structural schematic diagram for the current/voltage converter circuit that the utility model embodiment provides；
Fig. 5 is a kind of structural schematic diagram for the current/voltage converter circuit operation principle that the utility model embodiment provides；
Fig. 6 is a kind of structural schematic diagram for the current/voltage converter circuit operation principle that the utility model embodiment provides.
Specific implementation mode
Many details are elaborated in the following description in order to fully understand the utility model.But this practicality is new
Type can be much to implement different from the other modes of this description, and those skilled in the art can be without prejudice to the utility model
Similar popularization is done in the case of intension, therefore the utility model is not limited by following public specific embodiment.
In order to make it easy to understand, introducing the current/voltage converter circuit of the prior art first.
Current current/voltage converter circuit is mainly the non-isolated conversion electricity being made of operational amplifier and sample resistance
Road.This circuit is more demanding to the acquisition of electric current and conversion component, due to using non-isolated transfer principle circuit, with
The variation of signal code, the voltage of the reverse side of operational amplifier can not track the variation of zero adjustment voltage, that is,
Zero-point voltage also changes in the variation exported with operational amplifier, thus will increase it is non-linear, cause linear properties compared with
Difference.The accuracy of current/voltage-converted is relatively low.
In consideration of it, the utility model embodiment provides a kind of current/voltage converter circuit, change is used in the conversion circuit
Depressor is as isolation element so that conversion circuit is isolation conversion circuit.Non-isolated conversion circuit in compared to the prior art
It is more demanding to the acquisition and conversion component of electric current, the conversion circuit that the utility model embodiment provides to the acquisition of electric current and
Conversion component requires relatively low, reduces shadow of the imperfection to entire conversion circuit of operational amplifier and other elements
It rings, to enhance anti-interference, improves the accuracy of current/voltage-converted.
Clear, complete description is carried out to the technical solution of the utility model with reference to specific embodiments and the drawings.This
Symbol " * " in Figure of description in utility model embodiment is Same Name of Ends (the i.e. transformation of transformer primary and secondary winding coil
The a points of the primary winding coil of device U and the e points of the secondary winding coil of transformer U are Same Name of Ends, the armature winding of transformer U
The b points of coil and the e points of transformer U secondary winding coils are Same Name of Ends), one half-coil of primary winding and transformer
The turn ratio of grade winding coil is K.
Fig. 1 is referred to, Fig. 1 shows a kind of structure for the current/voltage converter circuit that the utility model embodiment provides
Schematic diagram.As shown in Figure 1, the current/voltage converter circuit that the utility model embodiment provides includes：Input terminal is (by first end
Son 1 and Second terminal 2 are constituted) and output end (being made of third terminal 3 and forth terminal 4), and setting in input terminal (by the
One terminal 1 and Second terminal 2 are constituted) current/voltage turn output end (being made of third terminal 3 and forth terminal 4) between
Change circuit.Wherein, input terminal (being made of first terminal 1 and Second terminal 2) receives the externally input current signal converted
Iin, the current signal I that is convertedinIt is DC current signal.The current signal that current/voltage converter circuit is used to be converted
IinIt is converted to d. c. voltage signal VOUT, exported via output end (being made of third terminal 3 and forth terminal 4), with further real
Now to the measurement of non-electrical physical quantity.
In possible embodiment, current/voltage converter circuit may include 1 couple of 2 path analoging switch G, transformer U and turn
Change sub-circuit V.Wherein, 1 couple of 2 path analoging switch G is connected to input terminal (being made of first terminal 1 and Second terminal 2) and transformation
Between the primary of device U, the secondary of transformer U is connected to the input terminal of conversion sub-circuit V, the output end connection of conversion sub-circuit V
Output end (is made of) third terminal 3 and forth terminal 4.1 couple, 2 path analoging switch G in the utility model embodiment includes one
A input terminal Y, two output terminals As0, A1With a control terminal N.The input terminal Y of 1 couple of 2 path analoging switch G and the second of input terminal
Terminal 2 connects, for receiving the current signal I convertedin, the first terminal 1 of input terminal and the primary intermediate point b points of transformer
It is connected, the first output terminals A in two output ends of 1 couple of 2 path analoging switch G0Primary first point of transformer U is connected, such as
A points in Fig. 1, the second output terminal A in two output ends1The primary second point for connecting transformer U, such as the c points in Fig. 1.
Since 1 couple of 2 path analoging switch G includes an input terminal Y and two output ends, i.e. the first output terminals A0It is defeated with second
Outlet A1, and different from the transformer U primary point connections respectively of the two output ends, this is related to 1 pair of 2 path analoging switch
The control problem of G switchings, i.e. input terminal Y are connect with which output end.In the utility model embodiment, 1 couple of 2 path analoging switch G
The externally input square wave control signal of control terminal N connections, the duty ratio of square wave control signal is 1/2, so that 1 pair of 2 tunnel
Analog switch G is under the control of square wave control signal, in the first output terminals A0With second output terminal A1Between switch.When 1 pair of 2 tunnel
The input terminal Y and the first output terminals A of analog switch G0Conducting, then the input terminal Y's and transformer U of 1 couple of 2 path analoging switch G is first
The a points of grade winding coil are connected, and as the input terminal Y and the first output terminals A of 1 couple of 2 path analoging switch G1It is connected, then 1 pair of 2 road mould
Input terminal Y and the c of the primary winding coil of transformer the U point of quasi- switch G is connected, in this way when 1 couple of 2 path analoging switch G and transformation
The primary difference conducting of device U, due to a points and the secondary winding coil of transformer U of the primary winding coil of transformer U
E points are Same Name of Ends, and the b points of the primary winding coil of transformer U and the e points of transformer U secondary winding coils are Same Name of Ends, therefore
The size of current of U grade of transformer output is equal but direction is on the contrary, so as to realize that DC current signal is changed into exchange letter
Number, realize circuit isolation with transformer U.
The current signal converted may be influenced in transmission process by High-frequency Interference, to eliminate the electric current converted letter
Number High-frequency Interference possible in transmission process refers to Fig. 2, the current/voltage-converted electricity that the utility model embodiment provides
Road further includes first filter, which is connected to by switching current signal and 1 couple of 2 path analoging switch G and transformer U
Primary between, for being filtered by switching current signal.In possible embodiment, first filter may include electricity
Hinder R1With capacitance C1, wherein resistance R1One end connection input terminal first terminal 1, resistance R1Other end connection capacitance C1's
The intermediate point b points of first end and transformer U primary, capacitance C1Second end connection input terminal Second terminal 2, and 1 pair of 2 tunnel
The input terminal Y of analog switch G.The current signal converted is cut after first filter filters by 1 couple of 2 path analoging switch G
The different points of transformer U are changed to, keep the size of current that U grade of transformer exports equal but direction on the contrary, straight so as to realize
Stream current signal is changed into ac current signal, and circuit isolation is realized with transformer, and being realized using conversion sub-circuit V will exchange
Current signal is converted to d. c. voltage signal.
Fig. 3 is referred to, the conversion sub-circuit V that the utility model embodiment provides may include the first operational amplifier A1、
Second operational amplifier A2With the first diode D1, the second diode D2And first resistor R2With second resistance R3.Wherein, the first fortune
Calculate amplifier A1First point of secondary winding coil of in-phase input end and transformer U, such as the e points and first resistor R in Fig. 32
One end connection, the first operational amplifier A1Reverse input end and conversion sub-circuit V output end VOAnd the first diode D1's
Cathode connects, the first operational amplifier A1Output end and the first diode D1Anode connection.Second operational amplifier A2It is same
The second point of phase input terminal and the secondary winding coil of transformer U, such as the f points and second resistance R in Fig. 33One end connection, the
Two operational amplifier As2Reverse input end and conversion sub-circuit V output end VOAnd the second diode D2Cathode connection, second
Operational amplifier A2Output end and the second diode D2Anode connection.First resistor R2The other end and second resistance R3's
The other end is connected, and is connected to output end jointly.Wherein, first resistor R2Resistance value and second resistance R3Resistance value
It is identical.
The electric current of the secondary output of transformer U inputs conversion sub-circuit V, by conversion sub-circuit V by ac current signal
It is converted into d. c. voltage signal output.Required voltage value in order to obtain refers to Fig. 4, what the utility model embodiment provided
Current/voltage converter circuit V can also include voltage regulator circuit, and the input terminal of the voltage regulator circuit connects conversion sub-circuit
The output end of V, the output end connection output end (being made of third terminal 3 and forth terminal 4) of voltage regulator circuit, for adjusting
The voltage value of conversion sub-circuit V outputs.In possible embodiment, voltage regulator circuit includes variable resistance RWWith fixed electricity
Hinder R4, adjust variable resistance RW, so that it may to realize the electricity for adjusting output end (being made of third terminal 3 and forth terminal 4) and exporting
Pressure value.In the current signal converted into direct current signal, and when current value range is 0~10mA, variable resistance R is adjustedWMake
The voltage range for obtaining the correspondence DC voltage of output end (being made of third terminal 3 and forth terminal 4) output is 0~5V.In addition,
In the utility model embodiment, fixed resistance R2, R3 resistance values must equal, variable resistance RW, fixed resistance R2And R3Choosing
Taking can determine according to the conversion accuracy of conversion circuit requirement, fixed resistance R2、R3Precision than conversion circuit require turn
Change the high magnitude of precision.For example, the conversion accuracy that conversion circuit requires is 1%, then variable resistance RW, fixed resistance R2
And R3Permissible accuracy be 0.1%.
Smoother voltage value in order to obtain, the current/voltage converter circuit that the utility model embodiment provides can be with
Including second filter, second filter may include capacitance C2, capacitance C2And it is connected in the output end and voltage of conversion sub-circuit V
Between adjusting circuit input end, the voltage for being exported to conversion sub-circuit V is filtered.
In order to make it easy to understand, continuing with the Current Voltage conversion electricity for introducing the utility model embodiment offer in conjunction with attached drawing
The operation principle on road.
As shown in figure 3, the current signal I convertedinIt is the 0~10mA DC current signals converted, output end output
Be 0~5V d. c. voltage signals.It is 5V that the control terminal N of 1 couple of 2 path analoging switch G, which can connect a high level, and low level is 0V,
The square-wave signal that duty ratio is 1/2, the working frequency of square-wave signal can be selected according to the requirement of conversion accuracy, general work
The high conversion accuracy of working frequency is just high, when the control terminal N of 1 couple of 2 path analoging switch G connects a high level, Y-A0Conducting, works as switch
Input terminate a low level when, Y-A1Conducting.The half of primary winding coil and transformer secondary output winding coil
The turn ratio is K, and " * " is the Same Name of Ends of transformer primary and secondary winding coil.
When the square wave that the control terminal N of 1 couple of 2 path analoging switch G is connect is high level, Y-A0Conducting, the electric current converted
Signal IINThrough resistance R1, the intermediate point of transformer U primary winding coils, i.e. b points, first point of transformer U primary winding coils,
That is a points, flow through the Y-A of 1 pair of 2 path analoging switch0, the secondary current direction of transformer U is first according to transformer U institutes target
Grade Same Name of Ends, secondary current I0Flow through first resistor R2With second resistance R3, transformer U secondary winding coil second points, i.e. f points
To first point, i.e. e points, specific primary and secondary current direction is as shown in Figure 5.As it can be seen that I0=KIIN, then V1=I0R2=KIINR2, V2
=-I0R3=-KIINR3。
Due to V2<0, the second diode D2Cut-off, second operational amplifier A2It is disconnected, does not export.And V1>=0, first
Diode D1It is connected, at this time the first operational amplifier A1With the first diode D1Follower is constituted, amplification factor is 1, therefore,
Output voltage is VO=V1=I0R2=KIINR2。
When the square wave that the control terminal N of 1 couple of 2 path analoging switch G is connect is low level, Y-A1Conducting, electric current to be converted
Signal IINThrough resistance R1, the intermediate point of transformer U primary winding coils, i.e. b points, the second point of transformer U primary winding coils,
That is c points, flow through the Y-A of 1 couple of 2 path analoging switch G1, the secondary current direction of transformer U is first according to transformer U institutes target
Grade Same Name of Ends, secondary current I0Flow through second resistance R3With first resistor R2, first point of transformer U secondary winding coils, i.e. e points
To second point, i.e. f points, specific primary and secondary current direction as shown in Figure 6, I0=KIIN, then V1=-I0R2=-KIINR2, V2
=I0R3=KIINR3。
Due to V1<0, the first diode D1Cut-off, the first operational amplifier A1It is disconnected, does not export, and V2>=0, second
Diode D2It is connected, at this time second operational amplifier A2With the second diode D2Follower is constituted, amplification factor is 1, VO=V2
=I0R3=KIINR3。
Due to R2And R3Resistance value it is identical, R can be enabled2=R3=R, so VO=V1=V2=I0R=KIINR, adjustment can
Variohm RWMake IINWhen being 10mA, Vout is 5V, to realize the I of 0~10mA direct currentsINCurrent signal is converted into 0~5V
Direct current Vout voltage output signal.
In consideration of it, the utility model embodiment provides a kind of current/voltage converter circuit, change is used in the conversion circuit
Depressor is as isolation element so that conversion circuit is isolation conversion circuit.Non-isolated conversion circuit in compared to the prior art
It is more demanding to the acquisition and conversion component of electric current, the conversion circuit that the utility model embodiment provides to the acquisition of electric current and
Conversion component requires relatively low, reduces shadow of the imperfection to entire conversion circuit of operational amplifier and other elements
It rings, to enhance anti-interference, improves the accuracy of current/voltage-converted.
The above descriptions are merely preferred embodiments of the present invention, is not done in any form to the utility model
Limitation, therefore all contents without departing from technical solutions of the utility model, according to the technical essence of the utility model to implementing above
Any simple modification, equivalent change and modification that example is done, are still within the scope of the technical solutions of the present invention.
Claims (9)
1. a kind of current/voltage converter circuit, which is characterized in that including：
Input terminal, for receiving the externally input current signal converted；
Output end, for providing output voltage；
The current/voltage converter circuit being connected between the input terminal and the output end, the current/voltage converter circuit
Including：1 pair of 2 path analoging switch, transformer and conversion sub-circuit, 1 pair of 2 path analoging switch are connected to the input terminal and institute
Between the primary for stating transformer, the secondary of the transformer is connected to the conversion sub-circuit, and the conversion sub-circuit connects institute
State output end；
Wherein, 1 pair of 2 path analoging switch includes an input terminal, two output ends and a control terminal, described two outputs
The first output end in end connects primary first point of the transformer, the second output terminal connection in described two output ends
The primary second point of the transformer.
2. conversion circuit as described in claim 1, which is characterized in that the input terminal has first terminal and Second terminal,
The first terminal of the input terminal is connect with the primary intermediate point of the transformer, and the Second terminal is simulated with 1 pair of 2 tunnel
The input terminal of switch connects；
The control terminal of 1 pair of 2 path analoging switch connects externally input square wave control signal, in first output end and institute
It states and switches between second output terminal, to provide direction equal in magnitude opposite electric current for the conversion sub-circuit；Wherein, the side
The duty ratio of wave control signal is 1/2.
3. conversion circuit as described in claim 1, which is characterized in that the conversion sub-circuit include the first operational amplifier,
Second operational amplifier and the first diode, the second diode and first resistor and second resistance；
Wherein, secondary first point of the in-phase input end of first operational amplifier and the transformer and first resistor
One end connects, and the reverse input end of first amplifier is connect with the output end of the conversion sub-circuit, first operation
The output end of amplifier is connect with the anode of first diode, cathode and the conversion sub-circuit of first diode
Output end connection；
One end of the in-phase input end of the second operational amplifier and the secondary second point and second resistance of the transformer
Connection, the reverse input end of the second operational amplifier are connect with the output end of the conversion sub-circuit, second operation
The output end of amplifier is connect with the anode of second diode, cathode and the conversion sub-circuit of second diode
Output end connection；
The other end of the first resistor is connected with the other end of the second resistance, and is connected to the common of the output end
Ground.
4. conversion circuit as claimed in claim 3, which is characterized in that the resistance value of the first resistor and the second resistance
Resistance value it is identical.
5. the conversion circuit as described in claim 1-4 is any, which is characterized in that further include：Voltage regulator circuit, the voltage
The input terminal for adjusting circuit connects the output end of the conversion sub-circuit, and the output end connection of the voltage regulator circuit is described defeated
Outlet；
Wherein, the voltage regulator circuit includes variable resistance and fixed resistance, the variable resistance is adjusted, to adjust
State the voltage value of output end output.
6. conversion circuit as claimed in claim 5, which is characterized in that the variable resistance and fixed resistance permissible accuracy
With the high magnitude of the conversion circuit permissible accuracy.
7. conversion circuit as claimed in claim 6, which is characterized in that further include first filter, the first filter connects
Be connected on it is described by switching current signal it is described switch and the transformer primary between, for being believed by switching current described
It number is filtered.
8. conversion circuit as claimed in claim 7, which is characterized in that further include second filter, the second filter connects
It is connected between the output end of the conversion sub-circuit and the voltage regulator circuit input terminal, for defeated to the conversion sub-circuit
The voltage gone out is filtered.
9. the conversion circuit as described in claim 7-8 is any, which is characterized in that described to be believed for direct current by switching current signal
Number, current value range is 0~10mA, and the voltage of the output end output is DC voltage, ranging from 0~5V of voltage value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820472157.8U CN207968334U (en) | 2018-03-30 | 2018-03-30 | A kind of current/voltage converter circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820472157.8U CN207968334U (en) | 2018-03-30 | 2018-03-30 | A kind of current/voltage converter circuit |
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| Publication Number | Publication Date |
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| CN207968334U true CN207968334U (en) | 2018-10-12 |
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| CN201820472157.8U Expired - Fee Related CN207968334U (en) | 2018-03-30 | 2018-03-30 | A kind of current/voltage converter circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365759A (en) * | 2018-03-30 | 2018-08-03 | 佛山科学技术学院 | A kind of current/voltage converter circuit |
-
2018
- 2018-03-30 CN CN201820472157.8U patent/CN207968334U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365759A (en) * | 2018-03-30 | 2018-08-03 | 佛山科学技术学院 | A kind of current/voltage converter circuit |
| CN108365759B (en) * | 2018-03-30 | 2024-05-03 | 佛山科学技术学院 | Current/voltage conversion circuit |
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