CN106155153A - The system of anti-voltage impulse disturbances - Google Patents
The system of anti-voltage impulse disturbances Download PDFInfo
- Publication number
- CN106155153A CN106155153A CN201510149122.1A CN201510149122A CN106155153A CN 106155153 A CN106155153 A CN 106155153A CN 201510149122 A CN201510149122 A CN 201510149122A CN 106155153 A CN106155153 A CN 106155153A
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- signal
- input
- impulse disturbances
- 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.)
- Granted
Links
Abstract
The present invention relates to electronic technology field, be specifically related to a kind of Circuits System.The system of anti-voltage impulse disturbances, including, a reference voltage generating circuit, for producing a reference voltage, the earth terminal of reference voltage generating circuit connects a benchmark signal；Benchmark signal is produced by a benchmark signal generating circuit, and benchmark signal generating circuit includes, an operational amplifier, produces benchmark signal under the effect of a positive voltage and a negative supply voltage；One charge pump circuit, is used for producing negative supply voltage.The present invention produces the benchmark signal of a standard by benchmark signal generating circuit, it is provided that to reference voltage generating circuit, circuit can be avoided to be disturbed by pulse signal, it is ensured that stablizing of reference voltage.
Description
Technical field
The present invention relates to electronic technology field, be specifically related to a kind of Circuits System.
Background technology
High-quality internal source of stable pressure is usually needed, to provide stable bias voltage or work at chip internal
For the reference voltage of comparator, produce reference as linear voltage regulator (LDO) passes through basis reference circuit
Voltage, utilizes this reference voltage and a sampling to carry out from the voltage feedback signal of linear stabilizer output voltage
Relatively adjust element, with regulated output voltage to drive；Typically require that basis reference circuit in circuit can
Enough provide stable voltage, it should do not affected by supply voltage and operating temperature, but in actual application
Finding, basis reference circuit usually can be disturbed by pulse signal, in particular with analog-digital hybrid
The large-scale use of system, the pulse signal of digital circuit produces interference often through power supply to analog circuit,
Have impact on the normal work of basis reference voltage.
Summary of the invention
It is an object of the invention to, it is provided that the system of a kind of anti-voltage impulse disturbances, solve above technology and ask
Topic；
Technical problem solved by the invention can realize by the following technical solutions:
The system of anti-voltage impulse disturbances, wherein, including,
One reference voltage generating circuit, for producing a reference voltage, described reference voltage generating circuit
Earth terminal connects a benchmark signal；Described benchmark signal passes through a benchmark signal generating circuit
Producing, described benchmark signal generating circuit includes,
One operational amplifier, produces institute under the effect of a positive voltage and a negative supply voltage
State benchmark signal；
One charge pump circuit, is used for producing described negative supply voltage.
The system of the anti-voltage impulse disturbances of the present invention, described operational amplifier includes,
First power end, is used for connecting described positive voltage；
Second source end, is used for connecting described negative supply voltage；
First input end, for connecting one first input signal；
Second input, for connecting one second input signal；
Outfan；
A plurality of metal-oxide-semiconductors composition differential amplifier circuit, be controllably connected to described first power end,
Described second source end, described first input end, between described second input and described outfan, use
With defeated from described outfan after described first input signal and described second input signal are carried out differential amplification
Go out described benchmark signal.
The system of the anti-voltage impulse disturbances of the present invention, described differential amplifier circuit includes,
First NMOS tube, its grid is connected with described first input signal, and drain electrode connects one first and crosses
Node, source electrode connects one second and crosses node；
Second NMOS tube, its grid is connected with described second input signal, and drain electrode connects described outfan,
Source electrode connects described second and crosses node；
First PMOS, its source electrode is connected with described first power end, and drain electrode crosses knot with described first
Point connects, and grid is connected with described drain electrode；
Second PMOS, its source electrode is connected with described first power end, and drain electrode is connected with described outfan,
Grid is connected with the grid of described first PMOS；
3rd NMOS tube, its grid connects a bias voltage, and source electrode is connected with described second source end,
Drain electrode connects described second and crosses node.
The system of the anti-voltage impulse disturbances of the present invention, described charge pump circuit includes:
One switch controlling signal produces circuit, for producing one group of switch controlling signal；
One operating circuit being provided with storage capacitor, including multiple switching branches, it controls end and opens with described
OFF signal produces circuit and connects, and multiple described switching branches combine under described switch controlling signal effect and lead
Lead to and turn off, to obtain described negative supply voltage.
The system of the anti-voltage impulse disturbances of the present invention, described operating circuit includes,
One Input voltage terminal, is connected with a running voltage；
One output voltage terminal；
First switching branches, is connected between described Input voltage terminal and one first reference mode；
Second switch branch road, is connected between described first reference mode and the first earth terminal；
3rd switching branches, is connected between described output voltage terminal and one second reference mode；
4th switching branches, is connected between described second reference mode and the second earth terminal；
One first storage capacitor is connected between described first reference mode and described second reference mode；
One second storage capacitor is connected between described output voltage terminal and described first earth terminal；
Described operating circuit is when charge mode, and described Input voltage terminal is to described first storage capacitor charging；
Described operating circuit is when discharge mode, from described first storage capacitor two ends to described second energy storage electricity
Discharge capacitor.
The system of the anti-voltage impulse disturbances of the present invention, described switch controlling signal produces circuit and includes,
Comparator, in one second reference voltage and a sampling from the voltage feedback signal of described output voltage terminal
Effect is lower produces a comparison signal；
Control electrical appliances for electric charge pump, produces described switch controlling signal under the effect of described comparison signal.
The system of the anti-voltage impulse disturbances of the present invention, described reference voltage generating circuit includes,
One current source；
One resistor voltage divider circuit, is series between described current source and described earth terminal；Described electric resistance partial pressure
Circuit include predetermined number and be connected in series with each other between described current source and described earth terminal point
Piezoresistance, the point-shaped being connected between described divider resistance becomes divider node；Described reference voltage is from predetermined
Divider node at draw.
Beneficial effect: owing to using above technical scheme, the present invention is produced by benchmark signal generating circuit
The benchmark signal of a raw standard, it is provided that to reference voltage generating circuit, can avoid by pulse signal
Interference, it is ensured that reference voltage is stable.
Accompanying drawing explanation
Fig. 1 is the circuit system structure figure of the present invention；
Fig. 2 is the charge pump circuit structural representation of the present invention；
Fig. 3 is the circuit structure diagram of the operational amplifier of the present invention；
The schematic diagram of the reference voltage generating circuit of Fig. 4 present invention；
Circuit waveform schematic diagram when being disturbed by pulse signal of Fig. 5 prior art；
Fig. 6 uses the circuit waveform schematic diagram after the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained on the premise of going out creative work, broadly falls into the scope of protection of the invention.
It should be noted that in the case of not conflicting, the embodiment in the present invention and the spy in embodiment
Levy and can be mutually combined.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as the present invention's
Limit.
Reference Fig. 1, the system of anti-voltage impulse disturbances, wherein, including,
One reference voltage generating circuit 3, for producing reference voltage V ref, reference voltage generating circuit 3
Earth terminal connect a benchmark signal GNDACC；Benchmark signal GNDACC passes through a base
Quasi-earth signal produces circuit and produces, and benchmark signal generating circuit includes,
One operational amplifier 2, in an a positive voltage VDD and negative supply voltage CPVSS
Effect under produce benchmark signal GNDACC；
One charge pump circuit 1, is used for producing negative supply voltage CPVSS.
The present invention produces accurate zero volt by the operational amplifier 2 of positive-negative power power voltage supply
Voltage, as benchmark signal GNDACC, can be avoided being disturbed by pulse signal, it is ensured that base
Quasi-voltage stabilization.
The system of the anti-voltage impulse disturbances of the present invention, with reference to Fig. 2, charge pump circuit 1 may include that
One switch controlling signal produces circuit 12, for producing one group of switch controlling signal；
One operating circuit 13 being provided with storage capacitor, including multiple switching branches, it controls end and switch
Control signal produce circuit 12 connect, multiple switching branches combine under switch controlling signal effect conducting with
Turn off, to obtain negative supply voltage CPVSS.
The system of the anti-voltage impulse disturbances of the present invention, operating circuit 13 includes,
One Input voltage terminal VDD, is connected with a running voltage；
One output voltage terminal VSS；
First switching branches, is connected between Input voltage terminal VDD and one first reference mode x1；
Second switch branch road, is connected between the first reference mode x1 and the first earth terminal GND1；
3rd switching branches, is connected between output voltage terminal VSS and one second reference mode x2；
4th switching branches, is connected between the second reference mode x2 and the second earth terminal GND2；
One first storage capacitor C1 is connected between the first reference mode x1 and the second reference mode x2；
One second storage capacitor C2 is connected between output voltage terminal VSS and the first earth terminal GND1；
Operating circuit 13 is when charge mode, and Input voltage terminal VDD charges to the first storage capacitor C1；
Operating circuit 13 is when discharge mode, from the first storage capacitor C1 two ends to the second storage capacitor C2
Electric discharge.
Charge pump circuit external circuits is simple, and does not use inductance as energy-storage travelling wave tube, thus electromagnetism is done
Disturb little, according to different topological structure and control method, it is possible to achieve boosting, blood pressure lowering and voltage reversal merit
Can, the system of the anti-voltage impulse disturbances of the present invention, it is also possible to include another charge pump circuit, be used for producing
Raw positive voltage VDD.
The system of the anti-voltage impulse disturbances of the present invention, switch controlling signal produces circuit 12 and includes,
Comparator 123, in one second reference voltage V ref1 and a sampling from the electricity of output voltage terminal VSS
A comparison signal is produced under pressure feedback signal effect；
Control electrical appliances for electric charge pump 121, produces switch controlling signal under the effect of comparison signal.
Switch controlling signal produces circuit 12 and uses prior art to realize, and is not belonging to the technology that the present invention improves
Feature, therefore not to repeat here.
The system of the anti-voltage impulse disturbances of the present invention, operational amplifier 2 can include,
First power end VDD, is used for connecting positive voltage；
Second source end VSS, is used for connecting negative supply voltage CPVSS；
First input end Vip, for connecting one first input signal；
Second input Vin, for connecting one second input signal；
Output end vo ut；
A plurality of metal-oxide-semiconductors composition differential amplifier circuit, be controllably connected to the first power end VDD,
Second source end VSS, first input end Vip, between the second input Vin and output end vo ut, use
The first input signal and the second input signal are carried out after differential amplification from output end vo ut output reference
Earth signal GNDACC.
The system of the anti-voltage impulse disturbances of the present invention, differential amplifier circuit includes,
First NMOS tube Mn1, its grid is connected with first input end Vip, and drain electrode connects one first friendship
Converging node A, source electrode connects one second and crosses node B；
Second NMOS tube Mn2, its grid and the second input Vin connect, and drain electrode connects outfan
Vout, source electrode connects second and crosses node B；
First PMOS Mp1, its source electrode and the first power end VDD connect, and drain electrode crosses with first
Node A connects, and grid is connected with drain electrode；
Second PMOS Mp2, its source electrode and the first power end VDD connect, drain electrode and output end vo ut
Connecting, the grid of grid and the first PMOS Mp1 connects；
3rd NMOS tube Mn3, its grid connects a bias voltage Vbias, source electrode and second source end
VSS connects, and drain electrode connects second and crosses node B.
The differential amplifier circuit of the present invention is to make with the first NMOS tube Mn1, the second NMOS tube Mn2
For the input difference amplifier to pipe, its load current mirror is by the first PMOS Mp1 and the 2nd PMOS
Pipe Mp2 forms, and the 3rd NMOS tube Mn3 provides the operating current of differential amplifier circuit.Differential amplification
Circuit, compared with the single ended input circuit such as common-source amplifier, common-drain amplifier, has stronger common mode input letter
Number rejection ability, has a more preferable capacity of resisting disturbance, and input, output signal range are bigger.
The system of the anti-voltage impulse disturbances of the present invention, reference voltage generating circuit 3 includes,
One current source Ibias；
One resistor voltage divider circuit, is series between current source Ibias and earth terminal；Resistor voltage divider circuit includes
Predetermined number and be connected in series with each other the divider resistance between current source Ibias and earth terminal, dividing potential drop
The point-shaped being connected between resistance becomes divider node；Reference voltage V ref is drawn at predetermined divider node
Go out.Earth terminal connects benchmark earth signal GNDACC.
The above-mentioned reference voltage generating circuit 3 using electric resistance partial pressure is a kind of simple reference voltage source
Realize circuit, after comparison diagram 5 and Fig. 6 is it can be seen that use the benchmark signal of the present invention, benchmark electricity
Pressure output is stable, it is achieved the interference of anti-extraneous pulse signal, the present invention can extend to other chip systems
In basis reference source, stable by simple circuit realiration reference voltage.
The foregoing is only preferred embodiment of the present invention, not thereby limit embodiments of the present invention and
Protection domain, to those skilled in the art, it should can appreciate that all utilization description of the invention
And the equivalent done by diagramatic content and the scheme obtained by obvious change, all should comprise
Within the scope of the present invention.
Claims (7)
- The system of the most anti-voltage impulse disturbances, it is characterised in that include,One reference voltage generating circuit, for producing a reference voltage, described reference voltage generating circuit Earth terminal connects a benchmark signal；Described benchmark signal passes through a benchmark signal generating circuit Producing, described benchmark signal generating circuit includes,One operational amplifier, produces institute under the effect of a positive voltage and a negative supply voltage State benchmark signal；One charge pump circuit, is used for producing described negative supply voltage.
- The system of anti-voltage impulse disturbances the most according to claim 1, it is characterised in that described fortune Calculation amplifier includes,First power end, is used for connecting described positive voltage；Second source end, is used for connecting described negative supply voltage；First input end, for connecting one first input signal；Second input, for connecting one second input signal；Outfan；A plurality of metal-oxide-semiconductors composition differential amplifier circuit, be controllably connected to described first power end, Described second source end, described first input end, between described second input and described outfan, use With defeated from described outfan after described first input signal and described second input signal are carried out differential amplification Go out described benchmark signal.
- The system of anti-voltage impulse disturbances the most according to claim 2, it is characterised in that described difference Amplifying circuit is divided to include,First NMOS tube, its grid is connected with described first input signal, and drain electrode connects one first and crosses Node, source electrode connects one second and crosses node；Second NMOS tube, its grid is connected with described second input signal, and drain electrode connects described outfan, Source electrode connects described second and crosses node；First PMOS, its source electrode is connected with described first power end, and drain electrode crosses knot with described first Point connects, and grid is connected with described drain electrode；Second PMOS, its source electrode is connected with described first power end, and drain electrode is connected with described outfan, Grid is connected with the grid of described first PMOS；3rd NMOS tube, its grid connects a bias voltage, and source electrode is connected with described second source end, Drain electrode connects described second and crosses node.
- The system of anti-voltage impulse disturbances the most according to claim 1, it is characterised in that described electricity Lotus pump circuit includes:One switch controlling signal produces circuit, for producing one group of switch controlling signal；One operating circuit being provided with storage capacitor, including multiple switching branches, it controls end and opens with described Closing control signal and produce circuit connection, multiple described switching branches are group under described switch controlling signal effect Close turn-on and turn-off, to obtain described negative supply voltage.
- The system of anti-voltage impulse disturbances the most according to claim 4, it is characterised in that described work Include as circuit,One Input voltage terminal, is connected with a running voltage；One output voltage terminal；First switching branches, is connected between described Input voltage terminal and one first reference mode；Second switch branch road, is connected between described first reference mode and the first earth terminal；3rd switching branches, is connected between described output voltage terminal and one second reference mode；4th switching branches, is connected between described second reference mode and the second earth terminal；One first storage capacitor is connected between described first reference mode and described second reference mode；One second storage capacitor is connected between described output voltage terminal and described first earth terminal；Described operating circuit is when charge mode, and described Input voltage terminal is to described first storage capacitor charging；Described operating circuit is when discharge mode, from described first storage capacitor two ends to described second energy storage electricity Discharge capacitor.
- The system of anti-voltage impulse disturbances the most according to claim 4, it is characterised in that described in open Close control signal generation circuit to include,Comparator, in one second reference voltage and a sampling from the voltage feedback signal of described output voltage terminal Effect is lower produces a comparison signal；Control electrical appliances for electric charge pump, produces described switch controlling signal under the effect of described comparison signal.
- The system of anti-voltage impulse disturbances the most according to claim 1, it is characterised in that described base Quasi-voltage generation circuit includes,One current source；One resistor voltage divider circuit, is series between described current source and described earth terminal；Described electric resistance partial pressure Circuit include predetermined number and be connected in series with each other between described current source and described earth terminal point Piezoresistance, the point-shaped being connected between described divider resistance becomes divider node；Described reference voltage is from predetermined Divider node at draw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149122.1A CN106155153B (en) | 2015-03-31 | 2015-03-31 | The system of anti-voltage impulse disturbances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149122.1A CN106155153B (en) | 2015-03-31 | 2015-03-31 | The system of anti-voltage impulse disturbances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106155153A true CN106155153A (en) | 2016-11-23 |
| CN106155153B CN106155153B (en) | 2018-07-10 |
Family
ID=57338150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510149122.1A Active CN106155153B (en) | 2015-03-31 | 2015-03-31 | The system of anti-voltage impulse disturbances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106155153B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132394A (en) * | 2017-11-28 | 2018-06-08 | 上海芯导电子科技有限公司 | A kind of micro-loading automatic detection circuit |
| CN108983066A (en) * | 2018-04-25 | 2018-12-11 | 上海芯导电子科技有限公司 | A kind of electric current automatic detection circuit |
| CN115542997A (en) * | 2022-11-30 | 2022-12-30 | 杭州芯耘光电科技有限公司 | Linear voltage regulator supporting bidirectional current and control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19608477A1 (en) * | 1995-03-10 | 1996-09-12 | Mitsubishi Electric Corp | MOS type semiconductor device with internal pseudo-ground potential generator circuit |
| CN1334555A (en) * | 2000-07-24 | 2002-02-06 | 夏普株式会社 | Liquid crystal display drive circuit, liquid crystal display and electronic device thereof |
| US20070279032A1 (en) * | 2006-06-02 | 2007-12-06 | Yuyu Chang | Circuit calibration using a time constant |
| CN101102081A (en) * | 2006-07-05 | 2008-01-09 | 松下电器产业株式会社 | Semiconductor integrated circuit |
| CN101266223A (en) * | 2007-03-16 | 2008-09-17 | 天津工程师范学院 | Milk conductance dynamic on-line detection and milk amount metering system |
| CN101394166A (en) * | 2008-10-28 | 2009-03-25 | 深圳市矽普特科技有限公司 | Triangle wave generating circuit, pulse width modulation circuit and audio power amplifying circuit |
| CN101907901A (en) * | 2009-06-05 | 2010-12-08 | 秉亮科技（苏州）有限公司 | Band gap circuit |
-
2015
- 2015-03-31 CN CN201510149122.1A patent/CN106155153B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19608477A1 (en) * | 1995-03-10 | 1996-09-12 | Mitsubishi Electric Corp | MOS type semiconductor device with internal pseudo-ground potential generator circuit |
| CN1334555A (en) * | 2000-07-24 | 2002-02-06 | 夏普株式会社 | Liquid crystal display drive circuit, liquid crystal display and electronic device thereof |
| US20070279032A1 (en) * | 2006-06-02 | 2007-12-06 | Yuyu Chang | Circuit calibration using a time constant |
| CN101102081A (en) * | 2006-07-05 | 2008-01-09 | 松下电器产业株式会社 | Semiconductor integrated circuit |
| CN101266223A (en) * | 2007-03-16 | 2008-09-17 | 天津工程师范学院 | Milk conductance dynamic on-line detection and milk amount metering system |
| CN101394166A (en) * | 2008-10-28 | 2009-03-25 | 深圳市矽普特科技有限公司 | Triangle wave generating circuit, pulse width modulation circuit and audio power amplifying circuit |
| CN101907901A (en) * | 2009-06-05 | 2010-12-08 | 秉亮科技（苏州）有限公司 | Band gap circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132394A (en) * | 2017-11-28 | 2018-06-08 | 上海芯导电子科技有限公司 | A kind of micro-loading automatic detection circuit |
| CN108983066A (en) * | 2018-04-25 | 2018-12-11 | 上海芯导电子科技有限公司 | A kind of electric current automatic detection circuit |
| CN115542997A (en) * | 2022-11-30 | 2022-12-30 | 杭州芯耘光电科技有限公司 | Linear voltage regulator supporting bidirectional current and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106155153B (en) | 2018-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102033560B (en) | Voltage regulator | |
| CN103513688B (en) | Low pressure difference linear voltage regulator | |
| CN103780212A (en) | Operational amplifiers, level switching circuit and programmable gain amplifier | |
| CN106209098A (en) | A kind of digital to analog converter | |
| CN104181968A (en) | LDO (low dropout regulator) provided with slope starting circuit | |
| CN106155153A (en) | The system of anti-voltage impulse disturbances | |
| CN103873032A (en) | Rail to rail input hysteresis comparator | |
| CN104950976B (en) | Voltage stabilizing circuit based on slew rate increasing | |
| Qu et al. | Ultralow‐power fast‐transient output‐capacitor‐less low‐dropout regulator with advanced adaptive biasing circuit | |
| CN108646847A (en) | A kind of temperature protection circuit and band-gap reference voltage circuit of bandgap voltage reference | |
| CN105159382A (en) | Linear voltage regulator | |
| CN101951003B (en) | Charging management device | |
| CN103618456A (en) | Power supply switching circuit for BOOST type DC - DC converter | |
| CN102315852B (en) | Parallel-serial data conversion circuit and parallel-serial data conversion system | |
| CN102594299A (en) | Square-wave generator circuit | |
| CN102591393B (en) | Low-dropout linear regulator | |
| CN106160459B (en) | The charge pump circuit system of fast transient response | |
| CN103117740A (en) | Low-power-consumption level shift circuit | |
| CN105676929A (en) | Novel LDO starting circuit preventing output overshoot | |
| CN104300949A (en) | Low-voltage resetting circuit for radio frequency chip of internet of things | |
| CN106612119A (en) | Comparator and analog-to-digital converter | |
| CN203405751U (en) | Novel voltage stabilizer circuit structure | |
| CN206524828U (en) | A kind of comparator and analog-to-digital conversion device | |
| CN106155150B (en) | The linear voltage stabilization system of transient state enhancing | |
| CN104299647A (en) | Negative pressure converting circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |