CN108847832A - The output comparison circuit of electric pressure converter - Google Patents
The output comparison circuit of electric pressure converter Download PDFInfo
- Publication number
- CN108847832A CN108847832A CN201810766674.0A CN201810766674A CN108847832A CN 108847832 A CN108847832 A CN 108847832A CN 201810766674 A CN201810766674 A CN 201810766674A CN 108847832 A CN108847832 A CN 108847832A
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- China
- Prior art keywords
- circuit
- output
- electric pressure
- pressure converter
- comparator
- Prior art date
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- Pending
Links
- 238000002955 isolation Methods 0.000 claims abstract description 26
- 230000003750 conditioning effect Effects 0.000 claims abstract description 15
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
- H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
- H03K5/2463—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude using diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/017545—Coupling arrangements; Impedance matching circuits
- H03K19/017572—Coupling arrangements; Impedance matching circuits using opto-electronic devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
- H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
- H03K5/2409—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude using bipolar transistors
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention relates to the output comparison circuits of electric pressure converter, including electric pressure converter basic circuit, are connected with pwm control circuit in the basic circuit, it is characterised in that：It further include having input anode, input cathode, negative pole of output end, comparator, isolation optocoupler and zener diode, the comparator backward end connects reference circuit, end is connected with conditioning circuit in the same direction for it, the comparator output terminal is connect with isolation optocoupler, the zener diode is serially connected between comparator output terminal and isolation optocoupler, and beneficial effects of the present invention are：Output electric current, voltage are compared with benchmark, guarantees the output of normal voltage, electric current, guarantees the stability of pwm control circuit.
Description
Technical field
The present invention relates to electrocar electric pressure converter fields, and in particular to the output comparison circuit of electric pressure converter.
Background technique
The illumination of pure electric sedan, instruction, the alert circuit that rings largely are supplied using the voltage after electric pressure converter is converted,
And the main power source of electric vehicle is greater than 36v voltage, thus need the voltage 36v and 36v or more by obtaining after conversion circuit
The circuits work such as required rated operational voltage supply is illuminated, indicated, ring is alert.
Existing pure electric vehicle electric pressure converter includes electric pressure converter basic circuit, is connected in the basic circuit
Pwm control circuit, the PWM are PulseWidthModulation（Pulse width modulation）Abbreviation, in electric pressure converter,
The circuits such as illumination, instruction, ring police show since each connector and connecting line long-time service can generate aging and be also easy to produce short circuit phenomenon
Some electric pressure converters are only equipped with a high frequency transformer in inside and detect operating current, when output end has the failures such as short circuit
When, the electric current of electric pressure converter exports the phenomenon that still remaining unchanged, damaging pwm control circuit.
A kind of output electric current, output voltage are compared with safe current, safe voltage in view of this, needing to develop
Circuit guarantees the stability of output end.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art,
The output comparison circuit of electric pressure converter is provided.
To achieve the above object, the present invention provides following technical solutions：The output comparison circuit of electric pressure converter, including
Electric pressure converter basic circuit is connected with pwm control circuit in the basic circuit, it is characterised in that：It further include having input terminal
Anode, input cathode, negative pole of output end, comparator, isolation optocoupler and zener diode, the comparator backward end linker
Quasi- circuit, end is connected with conditioning circuit in the same direction, and the comparator output terminal is connect with isolation optocoupler, the zener diode string
It is connected between comparator output terminal and isolation optocoupler.
The output comparison circuit of above-mentioned electric pressure converter can be further arranged to：The reference circuit includes concatenated
First reference resistance and the second reference resistance, the conditioning circuit include the first conditioning resistance being arranged in parallel and the second conditioning
Resistance is serially connected with integrating circuit in reference circuit, adds to comparator after amplifying reference signal by the integrating circuit and hold in the same direction.
The output comparison circuit of above-mentioned electric pressure converter can be further arranged to：Zener diode side connects output end
The positive other side is connected with voltage regulation resistance, and the voltage regulation resistance is serially connected with isolation optocoupler pair side, the isolation optocoupler primary side connection
Second diode and outside output voltage.
The output comparison circuit of above-mentioned electric pressure converter can be further arranged to：Isolation optocoupler primary side is connected with third electricity
Resistance, the 3rd resistor other end are connected with input cathode.
The output comparison circuit of above-mentioned electric pressure converter can be further arranged to：Described comparator one end is connected to output end
Cathode.
By adopting the above technical scheme, isolation optocoupler includes to be set to the light emitting diode of primary side and be set to the three of secondary side
Pole pipe, integrating circuit include the first diode being arranged in series with the second conditioning resistance, the first reference resistance and the second benchmark electricity
Resistance concatenation partial pressure forms benchmark and adds to comparator backward end, adds to comparator after the integrated amplification of conditioning circuit and holds in the same direction, works as tune
Comparator output high level driving isolation optocoupler pair side conducting makes chip pin PR be in high level when reason signal is higher than benchmark, instead
Conditioned signal when being lower than benchmark PP be then low level state, while output end output voltage adds to zener diode, pressure stabilizing electricity
Composed by hindering in sequential circuit, when output end voltage is higher than zener diode pressure stabilizing value, electric current is by zener diode, steady
Piezoresistance and the light emitting diode of isolation optocoupler primary side and drive isolation optocoupler pair side triode to export high level to PR；Otherwise it is defeated
PR is in low level state when outlet voltage is lower than zener diode value.
Beneficial effects of the present invention are：Output electric current, voltage is compared with benchmark, guarantees normal voltage, electric current
Output, guarantees the stability of pwm control circuit.
Invention is further described in detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the electrical block diagram of the embodiment of the present invention.
Specific embodiment
It is shown in Figure 1：The output comparison circuit of electric pressure converter, including electric pressure converter basic circuit, it is basic at this
It is connected with pwm control circuit in circuit, further includes having input anode, input cathode, negative pole of output end, comparator 1, isolation
Optocoupler 2 and zener diode 3,1 backward end of comparator connect reference circuit, and end is connected with conditioning circuit in the same direction, and comparator 1 is defeated
Outlet is connect with isolation optocoupler 2, and zener diode 3 is serially connected between 1 output end of comparator and isolation optocoupler 2, reference circuit packet
Concatenated first reference resistance 4 and the second reference resistance 5 are included, conditioning circuit includes the first conditioning resistance 6 being arranged in parallel
And the second conditioning resistance 7, integrating circuit is serially connected in reference circuit, and ratio is added to after amplifying reference signal by the integrating circuit
It is held in the same direction compared with device 1, isolation optocoupler 2 includes the light emitting diode 21 for being set to primary side and the triode 22 for being set to secondary side, product
Parallel circuit includes the first diode 9 being arranged in series with the second conditioning resistance 7, and 3 side of zener diode connects output head anode
The other side is connected with voltage regulation resistance 101, and voltage regulation resistance 101 is serially connected with the secondary side of isolation optocoupler 2,2 primary side of isolation optocoupler connection second
Diode 102 and outside output voltage, 2 primary side of isolation optocoupler are connected with 3rd resistor 23,23 other end of 3rd resistor and input
Cathode is held to be connected, 1 one end of comparator is connected to negative pole of output end.
Claims (5)
1. the output comparison circuit of electric pressure converter, including electric pressure converter basic circuit, are connected with PWM in the basic circuit
Control circuit, it is characterised in that：It further include having input anode, input cathode, negative pole of output end, comparator, isolation optocoupler
And zener diode, the comparator backward end connect reference circuit, end is connected with conditioning circuit in the same direction, and the comparator is defeated
Outlet is connect with isolation optocoupler, and the zener diode is serially connected between comparator output terminal and isolation optocoupler.
2. the output comparison circuit of electric pressure converter according to claim 1, it is characterised in that：The reference circuit includes
Have concatenated first reference resistance and the second reference resistance, the conditioning circuit include the first conditioning resistance being arranged in parallel and
Second improves resistance, is serially connected with integrating circuit in reference circuit, adds to and compare after being amplified reference signal by the integrating circuit
Device is held in the same direction.
3. the output comparison circuit of electric pressure converter according to claim 2, it is characterised in that：Zener diode side connects
It connects the output head anode other side and is connected with voltage regulation resistance, the voltage regulation resistance is serially connected with isolation optocoupler pair side, the isolation optocoupler
Primary side is connected to the second diode and outside output voltage.
4. the output comparison circuit of electric pressure converter according to claim 3, it is characterised in that：The connection of isolation optocoupler primary side
There is 3rd resistor, the 3rd resistor other end is connected with input cathode.
5. the output comparison circuit of electric pressure converter according to claim 4, it is characterised in that：Described comparator one end connects
Logical negative pole of output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766674.0A CN108847832A (en) | 2018-07-13 | 2018-07-13 | The output comparison circuit of electric pressure converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766674.0A CN108847832A (en) | 2018-07-13 | 2018-07-13 | The output comparison circuit of electric pressure converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108847832A true CN108847832A (en) | 2018-11-20 |
Family
ID=64197178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810766674.0A Pending CN108847832A (en) | 2018-07-13 | 2018-07-13 | The output comparison circuit of electric pressure converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108847832A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628889A (en) * | 2012-04-17 | 2012-08-08 | 东莞市精诚电能设备有限公司 | Voltage sampling circuit |
| CN103869144A (en) * | 2014-03-07 | 2014-06-18 | 杭州电子科技大学 | Isolation voltage sampling circuit |
| CN203712048U (en) * | 2013-12-11 | 2014-07-16 | 深圳引擎电子科技有限公司 | No-load step-down circuit of electric welding machine |
| CN105207666A (en) * | 2015-10-30 | 2015-12-30 | 林肯电梯(中国)有限公司 | Signal conversion circuit |
| CN206595973U (en) * | 2016-12-23 | 2017-10-27 | 芜湖国睿兆伏电子有限公司 | A kind of pwm control circuit |
| US20170366273A1 (en) * | 2016-06-16 | 2017-12-21 | Hisene Broadband Multimedia Technologies Co., Ltd. | Optical module |
| CN107911037A (en) * | 2017-12-11 | 2018-04-13 | 成都互聚科技有限公司 | A kind of strong switching power supply of job stability |
| CN208424327U (en) * | 2018-07-13 | 2019-01-22 | 温州德力汽摩部件有限公司 | The output comparison circuit of electric pressure converter |
-
2018
- 2018-07-13 CN CN201810766674.0A patent/CN108847832A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628889A (en) * | 2012-04-17 | 2012-08-08 | 东莞市精诚电能设备有限公司 | Voltage sampling circuit |
| CN203712048U (en) * | 2013-12-11 | 2014-07-16 | 深圳引擎电子科技有限公司 | No-load step-down circuit of electric welding machine |
| CN103869144A (en) * | 2014-03-07 | 2014-06-18 | 杭州电子科技大学 | Isolation voltage sampling circuit |
| CN105207666A (en) * | 2015-10-30 | 2015-12-30 | 林肯电梯(中国)有限公司 | Signal conversion circuit |
| US20170366273A1 (en) * | 2016-06-16 | 2017-12-21 | Hisene Broadband Multimedia Technologies Co., Ltd. | Optical module |
| CN206595973U (en) * | 2016-12-23 | 2017-10-27 | 芜湖国睿兆伏电子有限公司 | A kind of pwm control circuit |
| CN107911037A (en) * | 2017-12-11 | 2018-04-13 | 成都互聚科技有限公司 | A kind of strong switching power supply of job stability |
| CN208424327U (en) * | 2018-07-13 | 2019-01-22 | 温州德力汽摩部件有限公司 | The output comparison circuit of electric pressure converter |
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