CN103595026B - A kind of high-frequency and high-voltage power supply inverter - Google Patents
A kind of high-frequency and high-voltage power supply inverter Download PDFInfo
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- CN103595026B CN103595026B CN201310497149.0A CN201310497149A CN103595026B CN 103595026 B CN103595026 B CN 103595026B CN 201310497149 A CN201310497149 A CN 201310497149A CN 103595026 B CN103595026 B CN 103595026B
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Abstract
The invention discloses a kind of high-frequency and high-voltage power supply inverter, including: inversion unit；The current sampling unit being connected with inversion unit output；The voltage sampling unit being connected with inversion unit output；The power selecting instruction for receiving user's power selects unit；For storing the memory cell of the corresponding relation between power parameter and the first reference voltage, the second reference voltage；Connect power and select unit and the reference voltage setup unit of memory cell；Connect current sampling unit and the first comparing unit of reference voltage setup unit；Connect voltage sampling unit and the second comparing unit of reference voltage setup unit；Connect the first comparing unit output and the second comparing unit output or door；Connect or door and the control unit of inversion unit；Fault reaction speed of the present invention is fast, cost-effective, circuit structure simple, be easy to maintenance.
Description
Technical field
The present invention relates to a kind of high-frequency and high-voltage power supply inverter.
Background technology
Inverter is the important component part of high-frequency and high-voltage power supply, and its function is that direct current is converted to alternating current,
The electric property of inverter and reliability directly affect the stable operation of high-frequency and high-voltage power supply, of the prior art
Inverter often uses and all fault detect branch roads is the most directly fed back signal to control unit, and control unit is then
Need the situation finding out each fault branch in real time to control the duty of inversion unit, both safeguard inconvenience,
Improve cost, reduce fault reaction speed simultaneously.
Summary of the invention
The present invention is directed to the proposition of problem above, and develop a kind of high-frequency and high-voltage power supply inverter.
The technological means of the present invention is as follows:
A kind of high-frequency and high-voltage power supply inverter, including:
Inversion unit；
It is connected with inversion unit output, is used for detecting inversion unit output electric current and exporting and described output
The current sampling unit of the voltage signal that electric current is corresponding；
It is connected with inversion unit output, is used for detecting inversion unit output voltage and exporting and described output
The voltage sampling unit that voltage is corresponding；
The power selecting instruction for receiving user's power selects unit；
For storing corresponding relation between power parameter and the first reference voltage, the second reference voltage
Memory cell；
Connect power and select unit and memory cell, for the power parameter selected according to user and
Corresponding pass between the power parameter that memory cell is stored with the first reference voltage, the second reference voltage
System sets the first reference voltage and the reference voltage setup unit of the second reference voltage；
Connect current sampling unit and reference voltage setup unit, for the output of current sampling unit with defeated
Go out the first reference voltage set by voltage signal corresponding to electric current and reference voltage setup unit to compare,
When the voltage signal corresponding with output electric current of current sampling unit output is more than set by reference voltage setup unit
First comparing unit of output high level during fixed first reference voltage；
Connect voltage sampling unit and reference voltage setup unit, for the output of voltage sampling unit with defeated
Go out the second reference voltage set by voltage signal corresponding to voltage and reference voltage setup unit to compare,
When the voltage signal corresponding with output voltage of voltage sampling unit output is more than set by reference voltage setup unit
Second comparing unit of output high level during fixed second reference voltage；
Connect the first comparing unit output and the second comparing unit output or door；
Connect or door and inversion unit, for when or to control inversion unit during door output high level out-of-work
Control unit；
Further, the output of described first comparing unit and the second comparing unit is connected to by current limliting
Resistance and light emitting diode constitute display branch road；
It addition, also include being connected with reference voltage setup unit, for showing the first reference of current setting
Magnitude of voltage and the display unit of the second reference voltage level.
Owing to have employed technique scheme, a kind of high-frequency and high-voltage power supply inverter that the present invention provides is logical
Overcurrent sampling unit gathers inversion unit output current signal, gathers inversion unit by voltage sampling unit
Output voltage signal, sets first by reference voltage setup unit according to the power parameter of high-frequency and high-voltage power supply
Reference voltage level and the second reference voltage level, the first comparing unit is to output voltage signal corresponding to electric current and the
One reference voltage compares, and when exporting voltage signal corresponding to electric current more than the first reference voltage, first compares
Relatively unit output high level, now explanation output electric current is too high, and over-current phenomenon avoidance, the second comparing unit pair occur
Voltage signal and the second reference voltage that output voltage is corresponding compare, when the voltage letter that output voltage is corresponding
Number more than the second reference voltage time second comparing unit output high level, now explanation output voltage too high, send out
Raw overvoltage phenomenon, the first comparing unit and the second comparing unit are all connected with or door simultaneously, when the first comparing unit
With the second comparing unit arbitrary output high level, then or door output high level, control unit according to or door export
High level learns inversion unit output overcurrent or overvoltage, controls inversion unit in time and quits work, actual application
Time or door input can also collect other fault of inverter, it is to avoid all fault branches of inverter are equal
Feeding back signal to control unit, control unit then needs the situation finding out each fault branch in real time inverse to control
Become the duty of unit, both safeguarded inconvenience, improve cost, reduce fault reaction speed, the present invention simultaneously
Fault reaction speed is fast, cost-effective, circuit structure simple, be easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the present invention.
Detailed description of the invention
A kind of high-frequency and high-voltage power supply inverter as shown in Figure 1, including: inversion unit；With inversion unit
Output is connected, for detecting inversion unit output electric current and exporting the electricity corresponding with described output electric current
The current sampling unit of pressure signal；It is connected with inversion unit output, is used for detecting inversion unit output electricity
Press and export the voltage sampling unit corresponding with described output voltage；Select for receiving user's power
The power of instruction selects unit；For storing power parameter and the first reference voltage, the second reference
The memory cell of the corresponding relation between voltage；Connect power and select unit and memory cell, for root
The power parameter that the power parameter selected according to user and memory cell are stored and the first reference electricity
Corresponding relation between pressure, the second reference voltage sets the reference electricity of the first reference voltage and the second reference voltage
Pressure setup unit；Connect current sampling unit and reference voltage setup unit, for defeated to current sampling unit
The first reference voltage set by the voltage signal corresponding with output electric current gone out and reference voltage setup unit enters
Row compares, when the voltage signal corresponding with output electric current of current sampling unit output sets more than reference voltage
First comparing unit of output high level during the first reference voltage set by unit；Connect voltage sampling unit
With reference voltage setup unit, it is used for the voltage signal corresponding with output voltage to the output of voltage sampling unit
Compare with the second reference voltage set by reference voltage setup unit, when the output of voltage sampling unit
The voltage signal corresponding with output voltage is more than during the second reference voltage set by reference voltage setup unit defeated
Go out the second comparing unit of high level；Connect the first comparing unit output and the second comparing unit output
Or door；Connect or door and inversion unit, for when or control inversion unit during door output high level and quit work
Control unit；Further, the output of described first comparing unit and the second comparing unit connects respectively
Have and constituted display branch road by current-limiting resistance and light emitting diode；It addition, also include and reference voltage setup unit
It is connected, for showing the first reference voltage level and the display unit of the second reference voltage level of current setting.
A kind of high-frequency and high-voltage power supply inverter of the present invention, it is also possible to include and current sampling unit and electricity
Pressure sampling unit is connected, for according to inversion unit output electric current and the PWM of voltage-regulation output pwm signal
Control unit, and connect PWM control unit and the driver element of inversion unit；The present invention is taken by electric current
Sample unit gathers inversion unit output current signal, gathers inversion unit output voltage by voltage sampling unit
Signal, sets the first reference voltage by reference voltage setup unit according to the power parameter of high-frequency and high-voltage power supply
Value and the second reference voltage level, the first comparing unit is to exporting voltage signal corresponding to electric current and first with reference to electricity
Pressure compares, and when exporting voltage signal corresponding to electric current more than the first reference voltage, the first comparing unit is defeated
Going out high level, now explanation output electric current is too high, and over-current phenomenon avoidance occurs, and the second comparing unit is to output voltage
Corresponding voltage signal and the second reference voltage compare, when voltage signal corresponding to output voltage is more than the
Second comparing unit output high level during two reference voltages, now explanation output voltage is too high, occurs overvoltage existing
As, the first comparing unit and the second comparing unit are all connected with or door simultaneously, when the first comparing unit and the second ratio
Compared with unit arbitrary output high level, then or door output high level, control unit according to or door export high level obtain
Know inversion unit output overcurrent or overvoltage, control in time inversion unit and quit work, during actual application or door is defeated
Enter end and can also collect other fault of inverter, it is to avoid the equal feedback signal of all fault branches of inverter
To control unit, control unit needs the situation finding out each fault branch in real time to control the work of inversion unit
Make state, both safeguarded inconvenience, improve cost, reduce fault reaction speed simultaneously, be unfavorable for high-frequency high-voltage
The reliability service in source, it addition, the output of the first comparing unit and the second comparing unit is connected to by limiting
Leakage resistance and light emitting diode constitute display branch road, it is possible to achieve when the first comparing unit exports high level its
Light emitting diode in the display branch road connected is bright, and what when the second comparing unit exports high level, it connected shows
Showing that the light emitting diode in branch road is bright, user can know whether to occur according to the light on and off state of light emitting diode
Overvoltage or cross stream, the first reference voltage and the second reference voltage are respectively equivalent to the first comparing unit and the simultaneously
The reference voltage of two comparing units, due to the high-frequency and high-voltage power supply of different output power, included by its inverter
Inversion unit output current value and inversion unit output voltage values the most different, therefore the first comparing unit and second
The reference voltage of comparing unit also should be different, can accurately judge and detect whether inversion unit occurs
Output overvoltage flows with crossing, and sets different reference voltages according to the power parameter of different high-frequency and high-voltage power supplies,
The most more convenient the most practical operation, it is not necessary to be artificially adjusted.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office
Being limited to this, any those familiar with the art is in the technical scope that the invention discloses, according to this
The technical scheme of invention and inventive concept thereof in addition equivalent or change, all should contain the protection in the present invention
Within the scope of.
Claims (3)
1. a high-frequency and high-voltage power supply inverter, it is characterised in that including:
Inversion unit；
It is connected with inversion unit output, is used for detecting inversion unit output electric current and exporting and described output
The current sampling unit of the voltage signal that electric current is corresponding；
It is connected with inversion unit output, is used for detecting inversion unit output voltage and exporting and described output
The voltage sampling unit of the voltage signal that voltage is corresponding；
The power selecting instruction for receiving user's power selects unit；
For storing corresponding relation between power parameter and the first reference voltage, the second reference voltage
Memory cell；
Connect power and select unit and memory cell, for the power parameter selected according to user and
Corresponding pass between the power parameter that memory cell is stored with the first reference voltage, the second reference voltage
System sets the first reference voltage and the reference voltage setup unit of the second reference voltage；
Connect current sampling unit and reference voltage setup unit, for the output of current sampling unit with defeated
Go out the first reference voltage set by voltage signal corresponding to electric current and reference voltage setup unit to compare,
When the voltage signal corresponding with output electric current of current sampling unit output is more than set by reference voltage setup unit
First comparing unit of output high level during fixed first reference voltage；
Connect voltage sampling unit and reference voltage setup unit, for the output of voltage sampling unit with defeated
Go out the second reference voltage set by voltage signal corresponding to voltage and reference voltage setup unit to compare,
When the voltage signal corresponding with output voltage of voltage sampling unit output is more than set by reference voltage setup unit
Second comparing unit of output high level during fixed second reference voltage；
Connect the first comparing unit output and the second comparing unit output or door；
Connect or door and inversion unit, for when or to control inversion unit during door output high level out-of-work
Control unit.
A kind of high-frequency and high-voltage power supply inverter the most according to claim 1, it is characterised in that described the
The output of one comparing unit and the second comparing unit is connected to be made up of current-limiting resistance and light emitting diode
Display branch road.
A kind of high-frequency and high-voltage power supply inverter the most according to claim 1, it is characterised in that also include
It is connected with reference voltage setup unit, for showing the first reference voltage level and second reference of current setting
The display unit of magnitude of voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310497149.0A CN103595026B (en) | 2013-10-21 | 2013-10-21 | A kind of high-frequency and high-voltage power supply inverter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310497149.0A CN103595026B (en) | 2013-10-21 | 2013-10-21 | A kind of high-frequency and high-voltage power supply inverter |
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| CN103595026A CN103595026A (en) | 2014-02-19 |
| CN103595026B true CN103595026B (en) | 2016-08-31 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201623651U (en) * | 2010-01-22 | 2010-11-03 | 扬州晶旭电源有限公司 | Single-stage three-phase solar photovoltaic grid-connected inverter |
| CN102124639A (en) * | 2008-12-25 | 2011-07-13 | 株式会社日立制作所 | Apparatus for protecting power supply circuit of three-phase inverter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011078228A (en) * | 2009-09-30 | 2011-04-14 | Minebea Co Ltd | Overcurrent protection circuit |
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- 2013-10-21 CN CN201310497149.0A patent/CN103595026B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102124639A (en) * | 2008-12-25 | 2011-07-13 | 株式会社日立制作所 | Apparatus for protecting power supply circuit of three-phase inverter |
| CN201623651U (en) * | 2010-01-22 | 2010-11-03 | 扬州晶旭电源有限公司 | Single-stage three-phase solar photovoltaic grid-connected inverter |
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| CN103595026A (en) | 2014-02-19 |
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Effective date of registration: 20170607 Address after: 321031 Zhejiang province Jinhua City Jindong Cao Zhai Zhen West Industrial Park, building 3, 1, 2 Patentee after: ZHEJIANG DOWAY ADVANCED TECHNOLOGY CO., LTD. Address before: 116085, No. 7, No. 26, 1 Yin Jie street, Dalian hi tech Industrial Park, Liaoning, China Patentee before: Jinhua Dawei Electronic Technology (Dalian) Co., Ltd. |
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Denomination of invention: Inverter used for high-frequency high-voltage power supply Effective date of registration: 20191016 Granted publication date: 20160831 Pledgee: China Co truction Bank Corp Jinhua branch Pledgor: ZHEJIANG DOWAY ADVANCED TECHNOLOGY CO., LTD. Registration number: Y2019330000116 |
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Date of cancellation: 20201229 Granted publication date: 20160831 Pledgee: China Co. truction Bank Corp Jinhua branch Pledgor: ZHEJIANG DOWAY ADVANCED TECHNOLOGY Co.,Ltd. Registration number: Y2019330000116 |
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Denomination of invention: An inverter for high frequency and high voltage power supply Effective date of registration: 20201231 Granted publication date: 20160831 Pledgee: China Co. truction Bank Corp Jinhua branch Pledgor: ZHEJIANG DOWAY ADVANCED TECHNOLOGY Co.,Ltd. Registration number: Y2020330001357 |
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