CN103391088B - Circuit state reversal processor - Google Patents
Circuit state reversal processor Download PDFInfo
- Publication number
- CN103391088B CN103391088B CN201210145151.7A CN201210145151A CN103391088B CN 103391088 B CN103391088 B CN 103391088B CN 201210145151 A CN201210145151 A CN 201210145151A CN 103391088 B CN103391088 B CN 103391088B
- Authority
- CN
- China
- Prior art keywords
- voltage
- operational amplifier
- output
- described operational
- reversal
- 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
Abstract
The invention discloses a kind of circuit state reversal processor.Wherein, this circuit state reversal processor comprises: operational amplifier, comprises positive input, reverse input end and output; Reference voltage generating device, for providing fixing reference voltage for the reverse input end of operational amplifier, reference voltage V
refscope be: 0 < V
ref< V
cC; Voltage conversion device, for the output voltage of operational amplifier is carried out reverse preliminary treatment, to generate reversal voltage; Switching device, for after trigger switch device, feeds back to the positive input of operational amplifier by the reversal voltage that voltage conversion device generates; Feedback device, for directly feeding back to the positive input of operational amplifier by output voltage; Output device, for exporting this output voltage.By the present invention, the cost and complexity that reduce design circuit state inversion processor can be reached.
Description
Technical field
The present invention relates to circuit design field, in particular to a kind of circuit state reversal processor.
Background technology
In some actual use circuit, need to carry out reversion process by button to circuit state, namely make the output state of circuit become low level from high level by button, or make circuit output state become high level from low level.
At present, be: hardware uses microprocessor (as single-chip microcomputer etc.) in prior art for the implementation of realizing circuit state reversion process, recycling software programming process carrys out the reversion of realizing circuit low and high level state.This mode needs to use single-chip microcomputer and software to realize, and relative cost is higher; Even if not considering in cost situation as need aforesaid way being used, more single-chip processor i/o mouth (an I/O mouth is used for judging button, also needs 2 I/O mouths to be used to refer to state in addition) also can be consumed, mcu resource cannot be allowed to accomplish optimum.
At present for complicated for the mode of realizing circuit state reversion in correlation technique, cost is high and the problem of easily makeing mistakes, and not yet proposes effective solution at present.
Summary of the invention
For complicated for the mode of realizing circuit state reversion in correlation technique, cost is high and the problem of easily makeing mistakes, at present effective solution is not yet proposed, for this reason, main purpose of the present invention is to provide a kind of circuit state reversal processor, to solve the problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of circuit state reversal processor, this circuit state reversal processor comprises: operational amplifier, comprises positive input, reverse input end and output; Reference voltage generating device, is connected with the reverse input end of operational amplifier, for providing fixing reference voltage for the reverse input end of operational amplifier, reference voltage V
refscope be: 0 < V
ref< V
cC; Voltage conversion device, is connected with the output of operational amplifier, for the output voltage of operational amplifier is carried out reverse preliminary treatment, to generate reversal voltage; Switching device, one end is connected with the positive input of operational amplifier, and the other end is connected with voltage conversion device, for after trigger switch device, the reversal voltage that voltage conversion device generates is fed back to the positive input of operational amplifier; Feedback device, one end is connected with the positive input of operational amplifier, and the other end is connected with the output of operational amplifier, for output voltage directly being fed back to the positive input of operational amplifier; Output device, is directly connected with the output of operational amplifier, for exporting this output voltage.
Further, output voltage comprises high level voltage or low level voltage, wherein, circuit state reversal processor also comprises:, be connected with the output of operational amplifier, for receiving the output voltage of operational amplifier, and control LED according to output voltage, with display circuit state.
Further, reference voltage generating device comprises at least two resistance, wherein, the first end of the first resistance and the first end of the second resistance are connected to first node, second end of the first resistance is connected with supply voltage, second end ground connection of the second resistance, and the reverse input end of operational amplifier is connected on first node, obtains reference voltage to carry out dividing potential drop by these two resistance to supply voltage.
Further, reversal voltage comprises: high level voltage or low level voltage, voltage conversion device at least comprises a NPN type triode and electric capacity, wherein, the base stage of NPN type triode is connected with the output of operational amplifier, grounded emitter, collector electrode is connected to supply voltage via resistance, the first end of electric capacity is connected to the Section Point between supply voltage and collector electrode via another resistance, second end ground connection, and the first end of switching device is connected to the first end of Section Point and electric capacity, to make when operational amplifier output low level voltage, NPN type triode not conducting is with output high level voltage, when operational amplifier output high level voltage, NPN type triode conducting is with output low level voltage.
Further, the second end of switching device is connected to the positive input of operational amplifier, and after the first end and the second end UNICOM of switching device, the reversal voltage that voltage conversion device generates is fed back to operational amplifier by switching device.
Further, at least comprises two LED, and wherein, when the output voltage of operational amplifier is high level voltage, only the first LED is lighted, and when the output voltage of operational amplifier is low level voltage, only the second LED is lighted.
Further, feedback device at least comprises a diode and the 3rd resistance, wherein, the positive pole of diode is connected with the output of operational amplifier, the negative pole end of diode is connected to the positive input of operational amplifier via resistance, and by one end ground connection of the 3rd resistance, the other end is connected to the positive input of operational amplifier.
Further, when the output voltage of operational amplifier is low level voltage, the reversal voltage that voltage conversion device generates is high voltage, and when the output voltage of operational amplifier is high level voltage, the reversal voltage that voltage conversion device generates is low-voltage; Wherein, after the circuit of circuit state reversal processor powers on, the positive input of operational amplifier is unsettled, and the reverse input end of operational amplifier obtains reference voltage V
ref, to make the output voltage of operational amplifier for low level voltage, and low level voltage is fed back to operational amplifier by feedback device, to ensure that the output voltage of operational amplifier remains low level voltage.
Further, when the output voltage of operational amplifier is low level voltage, the reversal voltage that voltage conversion device generates is high voltage, and when the output voltage of operational amplifier is high level voltage, the reversal voltage that voltage conversion device generates is low-voltage; Wherein, the trigger switch device when the output voltage of operational amplifier is low level voltage, reversed by the voltage conversion device high voltage that obtains of switching device transfers to the positive input of operational amplifier, to make the output voltage of operational amplifier for high level voltage, and high level voltage is fed back to operational amplifier by feedback device, to ensure that the output voltage of operational amplifier remains high level voltage.
Further, when the output voltage of operational amplifier is low level voltage, the reversal voltage that voltage conversion device generates is high voltage, and when the output voltage of operational amplifier is high level voltage, the reversal voltage that voltage conversion device generates is low-voltage; Wherein, the trigger switch device when the output voltage of operational amplifier is high level voltage, reversed by the voltage conversion device low-voltage that obtains of switching device transfers to the positive input of operational amplifier, to make the output voltage of operational amplifier for low level voltage, and low level voltage is fed back to operational amplifier by feedback device, to ensure that the output voltage of operational amplifier remains low level voltage.
By the present invention, adopt operational amplifier, comprise positive input, reverse input end and output; Reference voltage generating device, is connected with the reverse input end of operational amplifier, for providing fixing reference voltage for the reverse input end of operational amplifier, reference voltage V
refscope be: 0 < V
ref< V
cC; Voltage conversion device, is connected with the output of operational amplifier, for the output voltage of operational amplifier is carried out reverse preliminary treatment, to generate reversal voltage; Switching device, one end is connected with the positive input of operational amplifier, and the other end is connected with voltage conversion device, for after trigger switch device, the reversal voltage that voltage conversion device generates is fed back to the positive input of operational amplifier; Feedback device, one end is connected with the positive input of operational amplifier, and the other end is connected with the output of operational amplifier, for output voltage directly being fed back to the positive input of operational amplifier; Output device, directly be connected with the output of operational amplifier, for exporting this output voltage, the above embodiments of the present application achieve the analog circuit of circuit state reversion by simple electronic components, solve complicated for the mode of realizing circuit state reversion in related art, cost is high and the problem of easily makeing mistakes, and then reach and reduce the cost of design circuit state inversion processor and the effect of complexity.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the circuit state reversal processor according to the embodiment of the present invention;
Fig. 2 is the detailed circuit schematic of the embodiment according to Fig. 1;
Fig. 3 is the circuit diagram of the reference voltage generating device according to Fig. 1 and 2 illustrated embodiment;
Fig. 4 is the circuit diagram of the voltage conversion device according to Fig. 1 and 2 illustrated embodiment;
Fig. 5 is the circuit diagram of according to Fig. 1 and 2 illustrated embodiment;
Fig. 6 is the circuit diagram of the feedback device according to Fig. 1 and 2 illustrated embodiment; And
Fig. 7 is the circuit diagram of the output device according to Fig. 1 and 2 illustrated embodiment.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 1 is the structural representation of the circuit state reversal processor according to the embodiment of the present invention; Fig. 2 is the detailed circuit schematic of the embodiment according to Fig. 1.
As shown in Figure 1, the circuit state reversal processor in the above embodiments of the present application comprises: operational amplifier, comprises positive input, reverse input end and output; Reference voltage generating device, is connected with the reverse input end of operational amplifier, for providing fixing reference voltage for the reverse input end of operational amplifier, reference voltage V
refscope be: 0 < V
ref< V
cC; Voltage conversion device, is connected with the output of operational amplifier, for the output voltage of operational amplifier is carried out reverse preliminary treatment, to generate reversal voltage; Switching device, one end is connected with the positive input of operational amplifier, and the other end is connected with voltage conversion device, for after trigger switch device, the reversal voltage that voltage conversion device generates is fed back to the positive input of operational amplifier; Feedback device, one end is connected with the positive input of operational amplifier, and the other end is connected with the output of operational amplifier, for output voltage directly being fed back to the positive input of operational amplifier; Output device, is directly connected with the output of operational amplifier, for exporting this output voltage.
The above embodiment of the present invention is based on positive feedback circuit, circuit transformations is carried out by utilizing the electronic devices and components such as circuit computing amplifier, resistance, electric capacity, switching device (can be key switch), integrated circuit operational amplifier is made to be operated in nonlinear operation district, make circuit realize output state by key switch and become low level from high level, or become high level from low level.It can thus be appreciated that the circuit state reversion analog circuit that the above embodiments of the present application obtain, achieves the reversion of circuit state (low and high level state), and by using LED directly to be shown by circuit state after ball bearing made using conversion.Thus reach the cost of reduction design circuit state inversion processor and the effect of complexity.
Preferably, output voltage in the above embodiments of the present application comprises high level voltage or low level voltage, wherein, circuit state reversal processor can also comprise:, be connected with the output of operational amplifier, for receiving the output voltage of operational amplifier, and control LED according to output voltage, with display circuit state.This embodiment achieves the reversion that not only can utilize simple electronic component realizing circuit state (low and high level state).And ball bearing made using transformation can be carried out by the state of the output to this circuit, the height state LED of circuit directly can be shown.In addition, the state of output also can be received other equipment and carries out using (as accessed the I/O etc. of single-chip microcomputer).
Just each parts in the embodiment shown in the application Fig. 1 and 2 are described in detail below.
Fig. 3 is the circuit diagram of the reference voltage generating device according to Fig. 1 and 2 illustrated embodiment; Fig. 4 is the circuit diagram of the voltage conversion device according to Fig. 1 and 2 illustrated embodiment; Fig. 5 is the circuit diagram of according to Fig. 1 and 2 illustrated embodiment; Fig. 6 is the circuit diagram of the feedback device according to Fig. 1 and 2 illustrated embodiment; And Fig. 7 is the circuit diagram of the output device according to Fig. 1 and 2 illustrated embodiment.
Reference voltage generating device in the above embodiments of the present application can comprise at least two resistance, wherein, the first end of the first resistance and the first end of the second resistance are connected to first node, second end of the first resistance is connected with supply voltage, second end ground connection of the second resistance, and the reverse input end of operational amplifier is connected on first node, obtain reference voltage to carry out dividing potential drop by these two resistance to supply voltage.
Concrete, as shown in Figure 3, reference voltage generating device can realize supply voltage V by using resistance (2 resistance or more than 2 resistance, the present embodiment have employed 3 resistance)
cCcarry out dividing potential drop, the voltage V after dividing potential drop
refreverse input end for operational amplifier provides a fixing reference voltage level, thus ensures that the reverse input end of amplifier remains on a fixed voltage value.R103 in Fig. 3 as shown in Figure 3, also can take down or increase the two ends of resistor coupled in parallel to R101 by resistance connected mode.
Reversal voltage in the above embodiments of the present application comprises: high level voltage or low level voltage, wherein, voltage conversion device at least comprises NPN type triode, resistance and an electric capacity, as shown in Figure 4, the base stage of NPN type triode is connected with the output of operational amplifier, grounded emitter, collector electrode is connected to supply voltage V via resistance
cCthe first end of electric capacity is connected to the Section Point between supply voltage VCC and collector electrode via another resistance, second end ground connection, and the first end of switching device is connected to the first end of Section Point and electric capacity, to make when operational amplifier output low level voltage, NPN type triode not conducting is with output high level voltage, and when operational amplifier output high level voltage, NPN type triode conducting is with output low level voltage.
Concrete, as shown in Figures 2 and 4, the level signal that operational amplifier output terminal exports by voltage conversion device carries out the reverse preliminary treatment of high-low pressure (as V
in1for then V during high level
out1for low level, as V
in1for then V during low level
out1for high level), realize the conversion of voltage level and obtain reversal voltage, and reversal voltage is turned back to key switch part, be i.e. V
in1v is become after the process of voltage conversion device
out1(note: V
in1for the input signal of voltage conversion device, be provided by the output of operational amplifier, i.e. V
in1equal the output voltage V of operational amplifier
out, V
out1output signal for voltage conversion device).
Preferably, as shown in Figure 2, second end of the switching device in the above embodiments of the present application is connected to the positive input of operational amplifier, and after the first end and the second end UNICOM of switching device, the reversal voltage that voltage conversion device generates is fed back to operational amplifier by switching device.
In the above embodiments of the present application at least comprises two LED, wherein, as the output voltage V of operational amplifier
outduring for high level voltage, only the first LED is lighted, as the output voltage V of operational amplifier
outduring for low level voltage, only the second LED is lighted.
Concrete, the detailed circuit schematic of as shown in Figure 5, this is used for display circuit state, if as the output voltage signal V of operational amplifier voltage
outfor during high level, one of them LED is bright, if operational amplifier V
outduring output high level, another LED is bright, can specify display circuit output state (note: V
in2for the input signal of, and V
in2equal V
out);
Feedback device in the above embodiments of the present application at least comprises a diode and the 3rd resistance, wherein, the positive pole of diode is connected with the output of operational amplifier, the negative pole end of diode is connected to the positive input of operational amplifier via the 4th resistance, and by one end ground connection of the 3rd resistance, the other end is connected to the positive input of operational amplifier.
Concrete, as shown in Figure 6, the voltage signal V that operational amplifier exports by the feedback device in the above embodiments of the present application
outpositive input (the note: V of operational amplifier is directly fed back to by the diode of more than 1 or 1 and resistance
in3for the input signal of this feedback device, and V
in3equal V
out, V
out3output signal for this feedback device).
Preferably, as shown in Figure 7, the output device in the above embodiments of the present application is used for the output voltage signal V of operational amplifier
outother application scenarios (note: V is outputted to by diode-isolated
in4for the input signal of this output device, and V
in4equal V
out, V
out4output signal for this output device).
As follows based on the known application mode of the present invention of the application's each embodiment above-mentioned:
When the output voltage of operational amplifier is low level voltage, the reversal voltage that voltage conversion device generates is high voltage, and when the output voltage of operational amplifier is high level voltage, the reversal voltage that voltage conversion device generates is low-voltage; Wherein, after the circuit of circuit state reversal processor powers on, the positive input of operational amplifier is unsettled, and the reverse input end of operational amplifier obtains reference voltage V
ref, to make the output voltage of operational amplifier for low level voltage, and low level voltage is fed back to operational amplifier by feedback device, to ensure that the output voltage of operational amplifier remains low level voltage.
The trigger switch device when the output voltage of operational amplifier is low level voltage, reversed by the voltage conversion device high voltage that obtains of switching device transfers to the positive input of operational amplifier, to make the output voltage of operational amplifier for high level voltage, and high level voltage is fed back to operational amplifier by feedback device, to ensure that the output voltage of operational amplifier remains high level voltage.
The trigger switch device when the output voltage of operational amplifier is high level voltage, reversed by the voltage conversion device low-voltage that obtains of switching device transfers to the positive input of operational amplifier, to make the output voltage of operational amplifier for low level voltage, and low level voltage is fed back to operational amplifier by feedback device, to ensure that the output voltage of operational amplifier remains low level voltage.
Concrete, known in conjunction with the circuit diagram shown in the application Fig. 1-7, above-described embodiment utilizes regenerative circuit principle in analog circuit and the element design such as integrated circuit operational amplifier, resistance capacitance.
As shown in Figures 2 and 3, the reference voltage generating device in the embodiment of the present application can be made up of R101, R102, R103 resistance, and this circuit is to supply voltage V
cCcarry out dividing potential drop, and by the voltage V after dividing potential drop
refdeliver to the reverse input end of operational amplifier A PM1A, thus make the reverse input end voltage V of APM1A
in (-)remain on voltage V
ref, i.e. V
in (-)=V
ref, and V
ref<V
cC.
After circuit powers on, as seen in figs, the positive input voltage V of operational amplifier A PM1A
in (+)for low level V
in (+)=0, lower than the reverse input end voltage V of operational amplifier A PM1A
in (-), i.e. V
in (+)<V
in (-), at this moment operational amplifier A PM1A output voltage V
outfor low level, i.e. V
out=0.The low level V exported
outthe positive input of operational amplifier A PM1A cannot be fed back to by D101, D102, R106, thus keep the positive input voltage V of operational amplifier A PM1A
in (+)for low level (V
in (+)=0), thus lower than the reverse input end voltage V of operational amplifier A PM1A
in (-), therefore, in these cases, operational amplifier A PM1A output voltage V
outlow level (V will be continued
out=0).
Work as V
outfor low level (V
out=0), time, Q101, Q103, Q104 all not conductings, Q102 conducting, now the LED1 of D104 lights, and LED2 does not work.
As shown in Figure 2, when triode Q101 not conducting, 2 ends of K switch 101 are high level, if now press K switch 101, and the positive input voltage V of operational amplifier A PM1A
in (+)sport height (V
in (+)=V
cC), higher than the reverse input end voltage V of operational amplifier A PM1A
in (-)(V
in (+)=V
cC>V
in (-)), at this moment operational amplifier A PM1A output voltage V
outfor high level, i.e. V
out=V
cC, the V of output
outhigh level feeds back to the positive input of operational amplifier A PM1A by D101, D102, R106, meanwhile, by choosing the suitable resistance of R105, keeps the positive input voltage V of operational amplifier A PM1A
in (+)higher than the reverse input end voltage V of operational amplifier A PM1A
in (-), i.e. (V
in (+)>V
in (-)), therefore, in these cases, operational amplifier A PM1A output voltage V
outby permanent High level (V
out=V
cC).
Work as V
outfor high level (V
out=V
cC) time, the equal conducting of Q101, Q103, Q104, Q102 not conducting, now the LED2 of D104 lights, and LED1 does not work.
As shown in Figure 2, when triode Q101 conducting, 2 ends of K switch 101 are low level, if now press K switch 101, and the positive input voltage V of operational amplifier A PM1A
in (+)sport low (V
in (+)=0), lower than the reverse input end voltage V of operational amplifier A PM1A
in (-), i.e. V
in (+)<V
in (-), at this moment operational amplifier A PM1A output voltage V
outfor low level, i.e. V
out=0, the V of output
outlow level cannot feed back to the positive input of operational amplifier A PM1A by D101, D102, R106, the positive input voltage V of operational amplifier A PM1A
in (+)keep below the reverse input end voltage V of operational amplifier A PM1A
in (-), i.e. V
in (+)<V
in (-), therefore, in these cases, operational amplifier A PM1A output voltage V
outlow level (V will be continued
out=0).
Above-described embodiment process, carrys out by button the circulation conversion that circuits for triggering realize high low level voltage, the output voltage V of voltage conversion circuit
outwill at V
cCcarry out between the two switching (namely circuit switches in high or low level state) with 0 voltage, the once switching of every button completing circuit state (low and high level state).And the changing voltage V exported
outby being applied in other circuit after diode-isolated.
As can be seen from the above description, present invention achieves following technique effect: the present invention utilizes the electronic devices and components such as circuit computing amplifier, resistance, electric capacity, key switch, carrys out the reversion of realizing circuit state (low and high level state).The state of this output can receive other local uses (as accessed the I/O etc. of single-chip microcomputer).In addition, carry out ball bearing made using transformation by the state of the output to this circuit, the height state LED of circuit directly can be shown.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a circuit state reversal processor, is characterized in that, comprising:
Operational amplifier, comprises positive input, reverse input end and output;
Reference voltage generating device, is connected with the reverse input end of described operational amplifier, for providing fixing reference voltage for the reverse input end of described operational amplifier, and described reference voltage V
refscope be: 0 < V
ref< V
cC;
Voltage conversion device, is connected with the output of described operational amplifier, for the output voltage of described operational amplifier is carried out reverse preliminary treatment, to generate reversal voltage;
Switching device, one end is connected with the positive input of described operational amplifier, the other end is connected with described voltage conversion device, for after the described switching device of triggering, the reversal voltage that described voltage conversion device generates is fed back to the positive input of described operational amplifier;
Feedback device, one end is connected with the positive input of described operational amplifier, and the other end is connected with the output of described operational amplifier, for described output voltage directly being fed back to the positive input of described operational amplifier;
Output device, is directly connected with the output of described operational amplifier, for exporting described output voltage.
2. circuit state reversal processor according to claim 1, is characterized in that, described output voltage comprises high level voltage or low level voltage, and wherein, described circuit state reversal processor also comprises:
, is connected with the output of described operational amplifier, for receiving the output voltage of described operational amplifier, and controls LED according to described output voltage, with display circuit state.
3. circuit state reversal processor according to claim 1 and 2, is characterized in that, described reference voltage generating device comprises at least two resistance, wherein,
The first end of the first resistance and the first end of the second resistance are connected to first node, second end of described first resistance is connected with supply voltage, second end ground connection of described second resistance, and the reverse input end of described operational amplifier is connected on described first node, obtain described reference voltage to carry out dividing potential drop by these two resistance to described supply voltage.
4. circuit state reversal processor according to claim 1 and 2, is characterized in that, described reversal voltage comprises: high level voltage or low level voltage, and described voltage conversion device at least comprises a NPN type triode and electric capacity, wherein,
The base stage of described NPN type triode is connected with the output of described operational amplifier, grounded emitter, collector electrode is connected to supply voltage via resistance, the first end of described electric capacity is connected to the Section Point between described supply voltage and described collector electrode via another resistance, second end ground connection, and the first end of described switching device is connected to the first end of described Section Point and described electric capacity, to make when described operational amplifier output low level voltage, the not conducting of described NPN type triode is with output high level voltage, when described operational amplifier output high level voltage, described NPN type triode conducting is with output low level voltage.
5. circuit state reversal processor according to claim 4, it is characterized in that, second end of described switching device is connected to the positive input of described operational amplifier, after the first end and the second end UNICOM of described switching device, the described reversal voltage that described voltage conversion device generates by described switching device feeds back to described operational amplifier.
6. circuit state reversal processor according to claim 2, it is characterized in that, described at least comprises two LED, wherein, when the output voltage of described operational amplifier is high level voltage, only the first LED is lighted, and when the output voltage of described operational amplifier is low level voltage, only the second LED is lighted.
7. circuit state reversal processor according to claim 1 and 2, it is characterized in that, described feedback device at least comprises a diode and the 3rd resistance, wherein, the positive pole of described diode is connected with the output of described operational amplifier, the negative pole end of described diode is connected to the positive input of described operational amplifier via resistance, and by one end ground connection of described 3rd resistance, the other end is connected to the positive input of described operational amplifier.
8. circuit state reversal processor according to claim 1, it is characterized in that, when the output voltage of described operational amplifier is low level voltage, the reversal voltage that described voltage conversion device generates is high voltage, when the output voltage of described operational amplifier is high level voltage, the reversal voltage that described voltage conversion device generates is low-voltage; Wherein,
After the circuit of described circuit state reversal processor powers on, the positive input of described operational amplifier is unsettled, and the reverse input end of described operational amplifier obtains described reference voltage V
ref, to make the output voltage of described operational amplifier for low level voltage, and described low level voltage is fed back to described operational amplifier by described feedback device, to ensure that the output voltage of described operational amplifier remains low level voltage.
9. circuit state reversal processor according to claim 1, it is characterized in that, when the output voltage of described operational amplifier is low level voltage, the reversal voltage that described voltage conversion device generates is high voltage, when the output voltage of described operational amplifier is high level voltage, the reversal voltage that described voltage conversion device generates is low-voltage; Wherein,
Described switching device is triggered when the output voltage of described operational amplifier is low level voltage, reversed by the described voltage conversion device high voltage that obtains of described switching device transfers to the positive input of described operational amplifier, to make the output voltage of described operational amplifier for high level voltage, and described high level voltage is fed back to described operational amplifier by described feedback device, to ensure that the output voltage of described operational amplifier remains high level voltage.
10. circuit state reversal processor according to claim 1, it is characterized in that, when the output voltage of described operational amplifier is low level voltage, the reversal voltage that described voltage conversion device generates is high voltage, when the output voltage of described operational amplifier is high level voltage, the reversal voltage that described voltage conversion device generates is low-voltage; Wherein,
Described switching device is triggered when the output voltage of described operational amplifier is high level voltage, reversed by the described voltage conversion device low-voltage that obtains of described switching device transfers to the positive input of described operational amplifier, to make the output voltage of described operational amplifier for low level voltage, and described low level voltage is fed back to described operational amplifier by described feedback device, to ensure that the output voltage of described operational amplifier remains low level voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145151.7A CN103391088B (en) | 2012-05-10 | 2012-05-10 | Circuit state reversal processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145151.7A CN103391088B (en) | 2012-05-10 | 2012-05-10 | Circuit state reversal processor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103391088A CN103391088A (en) | 2013-11-13 |
| CN103391088B true CN103391088B (en) | 2016-02-03 |
Family
ID=49535264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210145151.7A Active CN103391088B (en) | 2012-05-10 | 2012-05-10 | Circuit state reversal processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103391088B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10209837A (en) * | 1997-01-17 | 1998-08-07 | Omron Corp | Level converter |
| CN1256757A (en) * | 1998-02-19 | 2000-06-14 | 住友金属工业株式会社 | Capacitance detection system and method |
| CN1783717A (en) * | 2004-11-29 | 2006-06-07 | 株式会社瑞萨科技 | Power supply driver circuit |
| CN101102102A (en) * | 2006-07-07 | 2008-01-09 | 恩益禧电子股份有限公司 | Input interface circuit adapted to both of analog and digital signals |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010193431A (en) * | 2009-01-26 | 2010-09-02 | Rohm Co Ltd | Output circuit and motor drive apparatus |
-
2012
- 2012-05-10 CN CN201210145151.7A patent/CN103391088B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10209837A (en) * | 1997-01-17 | 1998-08-07 | Omron Corp | Level converter |
| CN1256757A (en) * | 1998-02-19 | 2000-06-14 | 住友金属工业株式会社 | Capacitance detection system and method |
| CN1783717A (en) * | 2004-11-29 | 2006-06-07 | 株式会社瑞萨科技 | Power supply driver circuit |
| CN101102102A (en) * | 2006-07-07 | 2008-01-09 | 恩益禧电子股份有限公司 | Input interface circuit adapted to both of analog and digital signals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103391088A (en) | 2013-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR970002763B1 (en) | Remote control system | |
| CN204090230U (en) | Indicator light brightness automatic circuit and electronic installation | |
| CN102231087A (en) | Keyboard | |
| CN103051317A (en) | On-off switch circuit triggered by wireless signal | |
| CN103391088B (en) | Circuit state reversal processor | |
| CN105099415A (en) | Complete power-off opening/closing circuit | |
| CN204928784U (en) | Can realize turn -offing completely switching on and shutting down circuit of power | |
| CN202602614U (en) | Circuit state counter-rotating processor | |
| CN204087756U (en) | A kind of laser cartoon emitter | |
| CN108597265A (en) | Animation interactive system based on preschool education | |
| CN116248093A (en) | High-voltage level shift module and gate driving circuit | |
| CN104753145B (en) | A kind of on and off switch with auto-lock function | |
| CN203324366U (en) | Power supply voltage detection circuit | |
| CN209787037U (en) | IGBT drive signal conversion device and converter | |
| CN202455582U (en) | Signal generating circuit of nuclear marker light | |
| CN206224372U (en) | Automatic boot circuit | |
| CN110347064B (en) | Power supply control circuit | |
| CN203691521U (en) | Television with double buttons | |
| CN216490434U (en) | Preceding stage driving circuit for switching high-power high-frequency switch | |
| CN216531282U (en) | Driving and scanning circuit and electronic equipment | |
| CN216390965U (en) | Multiplexing circuit and electronic equipment | |
| CN211018787U (en) | Switching circuit and electronic equipment | |
| CN203465834U (en) | Computer switch remote controller circuit | |
| CN204244073U (en) | A kind of controllable direct current power supply circuit | |
| CN212305482U (en) | Audio signal activation circuit for visual talkback doorbell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |