CN202856651U - Power inverter based on monostable multivibrator - Google Patents
Power inverter based on monostable multivibrator Download PDFInfo
- Publication number
- CN202856651U CN202856651U CN 201220453462 CN201220453462U CN202856651U CN 202856651 U CN202856651 U CN 202856651U CN 201220453462 CN201220453462 CN 201220453462 CN 201220453462 U CN201220453462 U CN 201220453462U CN 202856651 U CN202856651 U CN 202856651U
- Authority
- CN
- China
- Prior art keywords
- triode
- resistance
- shot multivibrator
- diode
- transformer
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model discloses a power inverter based on a monostable multivibrator. The power inverter comprises a monostable multivibrator, a transformer, a first capacitor, a second capacitor, a switch, a potentiometer, a first diode, a second diode, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first triode, a second triode, a third triode, a fourth triode, a fifth triode and a sixth triode. According to the utility model, the monostable multivibrator is used as a control element, a secondary winding of the transformer has a tap, the transformer is subjected to alternative forward and reverse excitations by a switch circuit, so that, as the switch circuit is insulated, the straight-through and bias problems which are mostly likely to happen in a bridge-type inverter are eradicated and the reliability of the inverter is greatly improved. Besides, the inverter provided by the utility model has the advantages of high working efficiency, small size and light weight.
Description
Technical field
The utility model relates to a kind of power inverter, relates in particular to a kind of power inverter based on one-shot multivibrator.
Background technology
What at present, inverter of the prior art was commonly used has: monofocal inverter, semi-bridge type inverter, push-pull dc-to-ac, full-bridge type inverter etc.; Wherein: the good reliability of monofocal inverter, but efficient is low, usually only is used for low power electric appliance; The efficient of push-pull type and bridge-type inverter is high, but poor reliability exists easily straight-through, the shortcomings such as shutoff voltage stress is high, magnetic bias, thereby in actual applications, has to adopt some other electronic original parts as safeguard measure, yet increased cost like this.
Summary of the invention
The purpose of this utility model provides a kind of power inverter based on one-shot multivibrator with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises one-shot multivibrator, transformer, the first electric capacity, the second electric capacity, switch, potentiometer, the first diode, the second diode, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the first triode, the second triode, the 3rd triode, the 4th triode, the 5th triode and the 6th triode, the one end while of described switch and the first end of described the second electric capacity, the negative pole of described the second diode, the positive pole of power supply, the first unstable state trigger end of described one-shot multivibrator, the second unstable state trigger end of described one-shot multivibrator be connected the trailing edge of one-shot multivibrator and trigger input and connect, the centre of the secondary winding of described transformer leads to tap, the two ends of described primary winding are the output of described power inverter, the second end of described switch simultaneously with the negative pole of described the first diode be connected the tap of transformer and be connected, the collector electrode of the first end of described transformer secondary output winding and described the first triode, the collector electrode of described the 3rd triode be connected the collector electrode of the 4th triode and connect, the second end while of the inferior utmost point winding of described transformer and the collector electrode of described the 6th triode, the collector electrode of described the 5th triode be connected the collector electrode of the second triode and connect, the anodal while of described the first diode and the first end of described the 3rd resistance, the first end of described the 4th resistance, the first end of described the 5th resistance, the first end of described the 6th resistance, the negative pole of described power supply, the second end of described the second electric capacity, the positive pole of described the second diode, the negative input of described one-shot multivibrator, the rising edge of described one-shot multivibrator triggers input and is connected the reset terminal of one-shot multivibrator and connects, the second end of described the 3rd resistance is connected with the emitter of described the 3rd triode, the second end of described the 4th resistance is connected with the emitter of described the 4th triode, the second end of described the 5th resistance is connected with the emitter of described the 5th triode, the second end of described the 6th resistance is connected with the emitter of described the 6th triode, the base stage of described the 3rd triode simultaneously with the emitter of described the first triode be connected the base stage of the 4th triode and be connected, the base stage of described the 5th triode simultaneously with the base stage of described the 6th triode be connected the emitter of the second triode and be connected, the base stage of described the first triode is connected with the first end of described the first resistance, the base stage of described the second triode is connected with the first end of described the second resistance, the second end of described the first resistance is connected with the monostable pulses input of described one-shot multivibrator, the second end of described the second resistance is connected with the monostable pulses complementary input end of described one-shot multivibrator, the external capacitor end of described monostable multivibrator is connected with the first end of described the first electric capacity, the second end of described the first electric capacity simultaneously with the first end of described potentiometer be connected the external capacitor of one-shot multivibrator/resistance common port and be connected, the outer meeting resistance end while of described monostable multi resonant oscillator and the second end of described potentiometer be connected the sliding end of potentiometer and be connected.
The beneficial effects of the utility model are:
Adopt one-shot multivibrator to be the control original paper in the utility model circuit, and the transformer secondary output winding has individual tap, switching circuit replaces forward and reverse excitation to transformer, because isolation insulated from each other between the switching circuit, thereby the most incidental straight-through top night of bridge-type inverter and magnetic bias problem have been eradicated, improved significantly the reliability of inverter, in addition, the utility model inverter also has high efficiency, little, the lightweight advantage of volume.
Description of drawings
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1: the utility model comprises one-shot multivibrator IC1, transformer T, the first capacitor C 1, the second capacitor C 2, K switch, potentiometer RP, the first diode VD1, the second diode VD2, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the first triode VT1, the second triode VT2, the 3rd triode VT3, the 4th triode VT4, the 5th triode VT5 and the 6th triode VT6, the one end while of K switch and the first end of the second capacitor C 2, the negative pole of the second diode VT2, the positive pole of power supply, the first unstable state trigger end of one-shot multivibrator IC1, the second unstable state trigger end of one-shot multivibrator IC1 is connected trailing edge and is triggered input and connect with one-shot multivibrator IC1, the centre of the secondary winding of transformer T leads to tap, the two ends of transformer T armature winding are the output of power inverter, the second end of K switch simultaneously and the negative pole of the first diode VD1 be connected tap with transformer T and be connected, the first end of transformer T secondary winding and the collector electrode of the first triode VT1, the collector electrode of the collector electrode of the 3rd triode VT3 and the 4th triode VT4 connects, the second end while of the secondary winding of transformer T and the collector electrode of the 6th triode VT6, the collector electrode of the 5th triode VT5 be connected the collector electrode of triode VT2 and connect, the anodal while of the first diode VD1 and the first end of the 3rd resistance R 3, the first end of the 4th resistance R 4, the first end of the 5th resistance R 5, the first end of the 6th resistance R 6, the negative pole of power supply, the second end of the second capacitor C 2, the positive pole of the second diode VD2, the negative input of one-shot multivibrator IC1, the rising edge of one-shot multivibrator IC1 triggers input is connected reset terminal and connects with one-shot multivibrator IC1, the second end of the 3rd resistance R 3 is connected with the emitter of the 3rd triode VT3, the second end of the 4th resistance R 4 is connected with the emitter of the 4th triode VT4, the second end of the 5th resistance R 5 is connected with the emitter of the 5th triode VT5, the second end of the 6th resistance R 6 is connected with the emitter of the 6th triode VT6, the base stage of the 3rd triode VT3 is connected with the emitter of the first triode VT1 and the base stage of the 4th triode VT4 simultaneously, the base stage of the 5th triode VT5 simultaneously with the base stage of the 6th triode VT6 be connected the emitter of triode VT2 and be connected, the base stage of the first triode VT1 is connected with the first end of the first resistance R 1, the base stage of the second triode VT2 is connected with the first end of the second resistance R 2, the second end of the first resistance R 1 is connected with the monostable pulses input of one-shot multivibrator IC1, the second end of the second resistance R 2 is connected with the monostable pulses complementary input end of one-shot multivibrator IC1, the external capacitor end of one-shot multivibrator IC1 is connected with the first end of the first capacitor C 1, the second end of the first capacitor C 1 simultaneously and the first end of potentiometer RP be connected external capacitor/resistance common port with one-shot multivibrator IC1 and be connected, the outer meeting resistance end while of one-shot multivibrator IC1 and the second end of potentiometer RP are connected sliding end and are connected with potentiometer RP.
As shown in Figure 1: the utility model is 12 V power inverters, and inverter is that direct current energy is transformed into AC power, emergency power supply; Generally dc battery jar is reverse into 220V and exchanges, popular says, inverter is a kind of device that direct current is converted into alternating current.It is comprised of inverter bridge, control logic and filter circuit.Be widely used in air-conditioning, home theater, electric wheel, electric tool, sewing machine, DVD, VCD, computer, TV, washing machine, smoke exhaust ventilator, refrigerator, video tape recorder, massager, fan, illumination etc.It is that 100 W use the 10CT step-down transformer that the DC power supply inverter can be used for processing upper load limit.When the larger load capacity of one of needs, you can customization type transistor use transformer in last strength and ability, at DC power supply inverter schematic diagram, one-shot multivibrator IC1 is the oscillator of model C D4047, input voltage source is connected to one-shot multivibrator IC1, and a unsettled multivibrator produces 1/50 hertz of pulse signal of two 180 degree out-phase.Drive contravariant transformer T through amplifying through four triodes (the 3rd triode VT3 to the six triode VT6) behind two triodes (the first transistor VT1 and transistor seconds VT2) before these pulse signals, the 220V alternating current just can be in the elementary output of transformer again.
Claims (1)
1. power inverter based on one-shot multivibrator, it is characterized in that: comprise one-shot multivibrator, transformer, the first electric capacity, the second electric capacity, switch, potentiometer, the first diode, the second diode, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the first triode, the second triode, the 3rd triode, the 4th triode, the 5th triode and the 6th triode, the one end while of described switch and the first end of described the second electric capacity, the negative pole of described the second diode, the positive pole of power supply, the first unstable state trigger end of described one-shot multivibrator, the second unstable state trigger end of described one-shot multivibrator be connected the trailing edge of one-shot multivibrator and trigger input and connect, the centre of the secondary winding of described transformer leads to tap, the two ends of described primary winding are the output of described power inverter, the second end of described switch simultaneously with the negative pole of described the first diode be connected the tap of transformer and be connected, the collector electrode of the first end of described transformer secondary output winding and described the first triode, the collector electrode of described the 3rd triode, with be connected the collector electrode of the 4th triode and connect, the second end while of the inferior utmost point winding of described transformer and the collector electrode of described the 6th triode, the collector electrode of described the 5th triode be connected the collector electrode of the second triode and connect, the anodal while of described the first diode and the first end of described the 3rd resistance, the first end of described the 4th resistance, the first end of described the 5th resistance, the first end of described the 6th resistance, the negative pole of described power supply, the second end of described the second electric capacity, the positive pole of described the second diode, the negative input of described one-shot multivibrator, the rising edge of described one-shot multivibrator triggers input and is connected the reset terminal of one-shot multivibrator and connects, the second end of described the 3rd resistance is connected with the emitter of described the 3rd triode, the second end of described the 4th resistance is connected with the emitter of described the 4th triode, the second end of described the 5th resistance is connected with the emitter of described the 5th triode, the second end of described the 6th resistance is connected with the emitter of described the 6th triode, the base stage of described the 3rd triode simultaneously with the emitter of described the first triode be connected the base stage of the 4th triode and be connected, the base stage of described the 5th triode simultaneously with the base stage of described the 6th triode be connected the emitter of the second triode and be connected, the base stage of described the first triode is connected with the first end of described the first resistance, the base stage of described the second triode is connected with the first end of described the second resistance, the second end of described the first resistance is connected with the monostable pulses input of described one-shot multivibrator, the second end of described the second resistance is connected with the monostable pulses complementary input end of described one-shot multivibrator, the external capacitor end of described monostable multivibrator is connected with the first end of described the first electric capacity, the second end of described the first electric capacity simultaneously with the first end of described potentiometer be connected the external capacitor of one-shot multivibrator/resistance common port and be connected, the outer meeting resistance end while of described monostable multi resonant oscillator and the second end of described potentiometer be connected the sliding end of potentiometer and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220453462 CN202856651U (en) | 2012-09-07 | 2012-09-07 | Power inverter based on monostable multivibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220453462 CN202856651U (en) | 2012-09-07 | 2012-09-07 | Power inverter based on monostable multivibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202856651U true CN202856651U (en) | 2013-04-03 |
Family
ID=47987797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220453462 Expired - Fee Related CN202856651U (en) | 2012-09-07 | 2012-09-07 | Power inverter based on monostable multivibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202856651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684026A (en) * | 2012-09-07 | 2014-03-26 | 成都默一科技有限公司 | Monostable multivibrator-based power inverter |
| CN103746586A (en) * | 2014-02-16 | 2014-04-23 | 吴建堂 | Four hundred watt direct current inverter |
-
2012
- 2012-09-07 CN CN 201220453462 patent/CN202856651U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684026A (en) * | 2012-09-07 | 2014-03-26 | 成都默一科技有限公司 | Monostable multivibrator-based power inverter |
| CN103746586A (en) * | 2014-02-16 | 2014-04-23 | 吴建堂 | Four hundred watt direct current inverter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021003886A1 (en) | Drive control circuit and home appliance | |
| CN204044961U (en) | A kind of sun power forest fire protection alarm | |
| CN201867443U (en) | Home appliance and mains supply strong current signal detection circuit thereof | |
| CN202856651U (en) | Power inverter based on monostable multivibrator | |
| CN104901573A (en) | Low-pass-filtering-based pulse amplification type inversion system | |
| CN103684026A (en) | Monostable multivibrator-based power inverter | |
| CN103973134A (en) | Direct-current power device and PWM (pulse width modulation) pulse control method for improving power factor thereof | |
| CN203233334U (en) | Inverter based on monostable trigger | |
| CN104467386A (en) | High-stability low-pass filter inverter system | |
| CN204304827U (en) | Based on the inversion system of low-pass filtering | |
| CN104410314A (en) | Phase-shift processing based low-pass filtering inverter system | |
| CN103117671B (en) | Inverter | |
| CN104901571A (en) | Pulse amplification triggering circuit-based efficient inversion system | |
| CN201910739U (en) | Full-bridge phase-shift soft switching circuit | |
| CN104467504A (en) | Low-pass filtering inverter system based on linear driving | |
| CN101997332A (en) | Simple charger circuit of electric vehicle | |
| CN205407623U (en) | Power inverter | |
| CN105391148B (en) | A kind of wind-powered electricity generation control circuit | |
| CN104506030A (en) | Fast inverter system | |
| CN203491778U (en) | Alternating voltage automatic switching circuit of integrated power supply circuit | |
| CN203166508U (en) | Reversed connection-preventing protective circuit for inverter power supply | |
| CN214205340U (en) | Single-tube resonant inverter | |
| CN203858469U (en) | Automobile air conditioner controller using integrated motor driving circuit based on discrete components | |
| CN206948281U (en) | A kind of intelligent electricity-saving on-off device | |
| CN112542972B (en) | Vector control high-voltage synchronous motor driving system for deviation rectifying controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20130907 |