CN105141127A - Electric power conversion device - Google Patents
Electric power conversion device Download PDFInfo
- Publication number
- CN105141127A CN105141127A CN201510620841.7A CN201510620841A CN105141127A CN 105141127 A CN105141127 A CN 105141127A CN 201510620841 A CN201510620841 A CN 201510620841A CN 105141127 A CN105141127 A CN 105141127A
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- converter section
- direct current
- switch element
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- diode
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Abstract
The invention discloses an electric power conversion device. The device comprises a direct current conversion part used for converting input power voltage into direct current voltage. A current disconnection part is arranged between the direct current conversion part and an output conversion part and is used for controlling on and off of output electric power of the direct current conversion part. One end of a voltage detection part is arranged on two ends of the current disconnection part, and the other end is connected with the direct current conversion part and the output conversion part. An input end of a control part is connected with a monitoring part and the output end is connected with the direct current conversion part and the output conversion part so as to control a switch element Q1 and a switch element Q2. The device is proper in design and convenient to use; required direct-current voltage value can be set; alternating current can be converted into direct current; and the device is provided with the voltage detection part, so working states of the device can be displayed in real time and dangers like electric shocks are effectively avoided.
Description
Technical field
The present invention relates to a kind of power inverter, belong to technical field of electric power.
Background technology
At present, along with direct current and alternating current are applied in different instrument and equipments, in industrial circle or even field of household appliances, power inverter obtains as electrodynamic speed control unit and uses widely.As using voltage source inverter the most widely at present, convert alternating current to dc point with rectifier.But traditional power inverter often just considers feasibility and the stability of transfer process, and have ignored the danger that power inverter exists electric shock in make and break process.
Summary of the invention
In order to solve above-mentioned Problems existing, the invention provides a kind of power inverter.
Technical scheme of the present invention is: a kind of power inverter, comprise control part, direct current converter section, export converter section, voltage detection department, current interruption portion, monitoring portion, load, described direct current converter section converts the supply voltage of input to direct voltage, and direct current converter section is provided with full-wave rectifier ERC and boost chopper; Described buck chopper is made up of inductance, diode and electrochemical capacitor, and direct current converter section inside is provided with switch element Q1, and its switch element Q1 controls by control part; Described output converter section is provided with switch element Q2 and boost chopper, and boost chopper is made up of inductance, diode; Described current interruption portion is arranged on direct current converter section and exports between converter section, controls the break-make of direct current converter section output power; Described voltage detection department one end is arranged on the two ends in current interruption portion, and the other end connects direct current converter section and exports converter section; Described monitoring portion is arranged on the two ends of load, and the voltage of load is exported in monitoring; Described control part input connects monitoring portion, and output connects direct current converter section and exports converter section, the switch element Q2 controlling the switch element Q1 in direct current converter section and export in converter section.
Preferably, the output voltage that described control part monitors supply load by reference voltage and the monitoring portion of setting contrasts, thus the disconnection of control switch element Q1 and switch element Q2 and closing.
Preferably, described voltage detection department is in series by diode, resistance and light-emitting diode three.
Preferably, described power supply E is a kind of AC power, and the output of power supply E is connected with full-wave rectifier ERC, and the output of full-wave rectifier ERC is connected with buck chopper.
Preferably, described buck chopper is connected with switch element Q1 by inductance, simultaneously in parallelly with diode and electrochemical capacitor formed, and its output is arranged on diode and electrochemical capacitor one end.
Preferably, described boost chopper is by switch element Q2 and Diode series, and forming with inductance in parallel, its output is arranged on inductance and diode one end simultaneously.
Compared with prior art, effect of the present invention and effect are: this power inverter is reasonable in design, easy to use, can set the DC voltage value of needs, convert alternating current to direct current.Be provided with voltage detection department simultaneously, the operating state of power inverter can be shown in real time, effectively avoid the dangerous generations such as electric shock.
Accompanying drawing explanation
Fig. 1 is circuit structure diagram of the present invention;
Fig. 2 is the structure chart of voltage detection department of the present invention;
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
As shown in Figure 1-2, a kind of power inverter, comprise direct current converter section 2 and convert the supply voltage of input to direct voltage, direct current converter section is provided with full-wave rectifier ERC6 and boost chopper; Buck chopper is made up of inductance 4, diode 7 and electrochemical capacitor 8, and direct current converter section 2 inside is provided with switch element Q13, and its switch element Q13 controls by control part 1; Export converter section 12 and be provided with switch element Q211 and boost chopper, boost chopper is made up of inductance 4, diode 7; Current interruption portion 9 is arranged on direct current converter section 2 and exports between converter section 12, controls the break-make of direct current converter section 2 output power; Voltage detection department 10 one end is arranged on the two ends in current interruption portion 9, and the other end connects direct current converter section 2 and exports converter section 12; Monitoring portion 13 is arranged on the two ends of load 14, and the voltage of load 14 is exported in monitoring; Control part 1 input connects monitoring portion 13, and output connects direct current converter section 2 and exports converter section 12, the switch element Q211 controlling the switch element Q13 in direct current converter section 2 and export in converter section 12.
Wherein, the output voltage that control part 1 monitors supply load 14 by the reference voltage of setting and monitoring portion 13 contrasts, thus the disconnection of control switch element Q13 and switch element Q211 and closing.Voltage detection department 10 is in series by diode 7, resistance 15 and light-emitting diode 16 three.Buck chopper is connected with switch element Q13 by inductance 4, and simultaneously with diode 7 with electrochemical capacitor 8 is in parallel formed, its output is arranged on diode 7 and electrochemical capacitor 8 one end.Boost chopper is connected by switch element Q211 and diode 7, and forming with inductance in parallel, its output is arranged on inductance 4 and diode 7 one end simultaneously.
The input of direct current converter section 2 is power supply E5, convert the alternating current of power supply E5 to direct current, this direct current, by current interruption portion 9, flows to and exports conversion portion 12, export converter section 12 direct voltage after conversion is regulated, after obtaining the direct voltage needed, flow to load 14.Wherein, current interruption portion 9 can control the break-make of transfer process, plays the effect of switch.When not needing to power to load 14, current interruption portion 9 is in off-state; When needs are powered to load 14, current interruption portion 9 is in closure state.
Meanwhile, the two ends in current interruption portion are provided with voltage detection department 10, detect the voltage that flows through to current interruption portion 9 from direct current converter section 2 and from current interruption portion 9 to the voltage exporting converter section 12 and flow through.When current interruption portion 9 is in off-state, power inverter quits work, and the light-emitting diode 16 in voltage detection department 10 is in luminance; When current interruption portion 9 is in closure state, power inverter operation, the light-emitting diode 16 in voltage detection department 10 is in OFF state.Therefore prompting personnel note whether having and apply voltage to output converter section 12, avoid the danger of getting an electric shock.
More than by the introduction to described execution mode, general principle of the present invention and design are set forth.But the present invention is never limited to execution mode described above, every similar changes and improvements done based on technical scheme of the present invention, these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (6)
1. a power inverter, comprise control part (1), direct current converter section (2), export converter section (12), voltage detection department (10), current interruption portion (9), monitoring portion (13), load (14), it is characterized in that: described direct current converter section (2) converts the supply voltage of input to direct voltage, and direct current converter section is provided with full-wave rectifier ERC (6) and boost chopper; Described buck chopper is made up of inductance (4), diode (7) and electrochemical capacitor (8), and direct current converter section (2) inside is provided with switch element Q1 (3), its switch element Q1 (3) controls by control part (1); Described output converter section (12) is provided with switch element Q2 (11) and boost chopper, and boost chopper is made up of inductance (4), diode (7); Described current interruption portion (9) is arranged on direct current converter section (2) and exports between converter section (12), controls the break-make of direct current converter section (2) output power; Described voltage detection department (10) one end is arranged on the two ends of current interruption portion (9), and the other end connects direct current converter section (2) and exports converter section (12); Described monitoring portion (13) is arranged on the two ends of load (14), and the voltage of load (14) is exported in monitoring; Described control part (1) input connects monitoring portion (13), output connects direct current converter section (2) and exports converter section (12), the switch element Q2 (11) controlling the switch element Q1 (3) in direct current converter section (2) and export in converter section (12).
2. a kind of power inverter according to claim 1, it is characterized in that: the output voltage that described control part (1) monitors supply load (14) by reference voltage and monitoring portion (13) of setting contrasts, thus the disconnection of control switch element Q1 (3) and switch element Q2 (11) and closing.
3. a kind of power inverter according to claim 1, is characterized in that: described voltage detection department (10) is in series by diode (7), resistance (15) and light-emitting diode (16) three.
4. a kind of power inverter according to claim 1, is characterized in that; Described power supply E (5) is a kind of AC power, and the output of power supply E (5) is connected with full-wave rectifier ERC (6), and the output of full-wave rectifier ERC (6) is connected with buck chopper.
5. a kind of power inverter according to claim 1, it is characterized in that: described buck chopper is connected with switch element Q1 (3) by inductance (4), simultaneously with diode (7) with electrochemical capacitor (8) is in parallel formed, its output is arranged on diode (7) and electrochemical capacitor (8) one end.
6. a kind of power inverter according to claim 1, it is characterized in that: described boost chopper is connected by switch element Q2 (11) and diode (7), forming with inductance in parallel, its output is arranged on inductance (4) and diode (7) one end simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510620841.7A CN105141127A (en) | 2015-09-28 | 2015-09-28 | Electric power conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510620841.7A CN105141127A (en) | 2015-09-28 | 2015-09-28 | Electric power conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105141127A true CN105141127A (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510620841.7A Pending CN105141127A (en) | 2015-09-28 | 2015-09-28 | Electric power conversion device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105141127A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201230634A (en) * | 2010-10-07 | 2012-07-16 | Semiconductor Energy Lab | DCDC converter, semiconductor device, and power generation device |
| CN102820768A (en) * | 2011-06-09 | 2012-12-12 | 富士电机株式会社 | Power conversion apparatus |
| CN103178707A (en) * | 2011-12-26 | 2013-06-26 | 东芝照明技术株式会社 | Electrical power conversion device |
| KR20150006307A (en) * | 2013-07-08 | 2015-01-16 | 페어차일드코리아반도체 주식회사 | Switch control device, power supply device comprising the same, and driving method of power supply device |
-
2015
- 2015-09-28 CN CN201510620841.7A patent/CN105141127A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201230634A (en) * | 2010-10-07 | 2012-07-16 | Semiconductor Energy Lab | DCDC converter, semiconductor device, and power generation device |
| CN102820768A (en) * | 2011-06-09 | 2012-12-12 | 富士电机株式会社 | Power conversion apparatus |
| CN103178707A (en) * | 2011-12-26 | 2013-06-26 | 东芝照明技术株式会社 | Electrical power conversion device |
| KR20150006307A (en) * | 2013-07-08 | 2015-01-16 | 페어차일드코리아반도체 주식회사 | Switch control device, power supply device comprising the same, and driving method of power supply device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |