CN105281595A - Inverter power supply circuit - Google Patents
Inverter power supply circuit Download PDFInfo
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- CN105281595A CN105281595A CN201510885842.4A CN201510885842A CN105281595A CN 105281595 A CN105281595 A CN 105281595A CN 201510885842 A CN201510885842 A CN 201510885842A CN 105281595 A CN105281595 A CN 105281595A
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Abstract
The invention provides an inverter power supply circuit. Fast conversion from the direct current to the alternating current is achieved by the matching of a field-effect tube Q1 and a field-effect tube Q2, the breakover current of the Q2 is directly lowered through the Q1 before the Q2 is connected, and thus a winding on the right side can generate induced electromotive force. The polarity of the voltage on the left side is positive and the polarity of the voltage on the right side is negative. The current arrives at a resistor R4 on the left side through the winding intersection, and then arrives at the tail portion of the winding after reaching the grid electrode of the Q2, and hence a circuit is formed. In this way, the Q2 is connected, the starting of oscillation is achieved from the Q, and therefore the problem of overlong delay is solved. By means of the inverter power supply circuit, and fast oscillation starting can be achieved; besides, the problem that currents are too high under the condition of too-high load power is solved.
Description
Technical field
The present invention relates to technical field of electric power, particularly relate to a kind of inversion power supply circuits.
Background technology
By DC power supply being converted to alternating current, to come that electric light powers be thing common in production process, but in the load that some power is higher, how to overcome the problem that electric current under high power is excessive, and how to realize direct current fast and deliver stream and avoid postponing long situation, this is the problem needing those skilled in the art to be overcome.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of inversion power supply circuits, how to overcome the excessive problem of electric current under high power for solving, and how to realize the problem that direct current fast delivers stream and avoid postponing long situation.
For achieving the above object and other relevant objects, the invention provides following technical scheme:
A kind of inversion power supply circuits, comprise resistance R1, resistance R2, resistance R3, resistance R4 and electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, diode D2, Transformer Winding T1 and field effect transistor Q1 and field effect transistor Q2, as shown in the figure, the grid of field effect transistor Q1 is by resistance R1 ground connection, the source ground of field effect transistor Q1, the first end of one side winding in the drain electrode connection transformer winding T1 of field effect transistor Q1, and the grid of field effect transistor Q2 is connected by resistance R4, the grid of field effect transistor Q2 is by resistance R2 ground connection, the grounded drain of field effect transistor Q2, second end of one side winding in the source electrode connection transformer winding T1 of field effect transistor Q2, and by resistance R3 ground connection, on one side a tap voltage (+12V) is connected with between the first end of winding and the second end in Transformer Winding T1, in addition, an electric capacity C1 is parallel with between 3rd end of another side winding and the 4th end in Transformer Winding T1, one end of electric capacity C1 connects one end of electric capacity C2 and electric capacity C3 respectively, the other end of electric capacity C1 connects the positive pole of diode D1 and the negative pole of diode D2 respectively, the other end of electric capacity C2 connects the negative pole of diode D1, the other end of electric capacity C3 connects the positive pole of diode D2, one end of electric capacity C4 is connected to the negative pole of diode D1, the other end of electric capacity C4 is connected to the positive pole of diode D2, and the two ends of electric capacity C4 are parallel with an electric light L1.
Preferably, field effect transistor Q2 and field effect transistor Q1 is the field effect transistor integrated chip of IRF1010 type.
Preferably, field effect transistor Q2 is the field effect transistor of N raceway groove, and field effect transistor Q1 is the field effect transistor of P raceway groove.
Preferably, the resistance of resistance R1 and resistance 2 is 100 ohm.
Preferably, the resistance of resistance R3 and resistance R4 is 150 ohm.
As mentioned above, complete denomination of invention of the present invention, has following beneficial effect: the present invention can realize starting of oscillation fast, and overcomes when bearing power is too high, causes the problem that electric current is too high.
Accompanying drawing explanation
Fig. 1 is shown as a kind of schematic diagram of inversion power supply circuits.
Fig. 2 is shown as a kind of principle key diagram of inversion power supply circuits.
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.It should be noted that, when not conflicting, the feature in following examples and embodiment can combine mutually.
It should be noted that, the diagram provided in following examples only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Refer to Fig. 1, the invention provides a kind of schematic diagram of inversion power supply circuits, as shown in the figure, comprise resistance R1, resistance R2, resistance R3, resistance R4 and electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, diode D2, Transformer Winding T1 and field effect transistor Q1 and field effect transistor Q2, as shown in the figure, the grid of field effect transistor Q1 is by resistance R1 ground connection, the source ground of field effect transistor Q1, the first end of one side winding in the drain electrode connection transformer winding T1 of field effect transistor Q1, and the grid of field effect transistor Q2 is connected by resistance R4, the grid of field effect transistor Q2 is by resistance R2 ground connection, the grounded drain of field effect transistor Q2, second end of one side winding in the source electrode connection transformer winding T1 of field effect transistor Q2, and by resistance R3 ground connection, on one side a tap voltage (+12V) is connected with between the first end of winding and the second end in Transformer Winding T1, in addition, an electric capacity C1 is parallel with between 3rd end of another side winding and the 4th end in Transformer Winding T1, one end of electric capacity C1 connects one end of electric capacity C2 and electric capacity C3 respectively, the other end of electric capacity C1 connects the positive pole of diode D1 and the negative pole of diode D2 respectively, the other end of electric capacity C2 connects the negative pole of diode D1, the other end of electric capacity C3 connects the positive pole of diode D2, one end of electric capacity C4 is connected to the negative pole of diode D1, the other end of electric capacity C4 is connected to the positive pole of diode D2, and the two ends of electric capacity C4 are parallel with an electric light L1.
Refer to Fig. 2, the principle of foregoing circuit is: first power supply+12V enters Q1, because Q1 is low level conducting, such Q1 step faster than the conducting of Q2, before Q2 conducting, Q1 has directly dragged down the On current of Q2, the winding on such the right produces induced electromotive force, the polarity of voltage is left positive right negative, and electric current is by the resistance R4 of winding intersection point to the left side, and the grid arriving Q2 arrives the afterbody of winding again, thus forming loop, such Q2 is with regard to conducting; The electric current of Q1 like this must decline, and Q2 has electric current to flow through, and electric current has the situation of sudden change, and can produce left negative right positive voltage on the left side of winding, the resistance R3 of electric current from intersection point to the right enters grid to resistance R1 and get back to power cathode, such Q1 cut-off.But this is cut-off just temporarily, because this induced current can not too for a long time once disappear, Q1 gets back to conducting state again, produces induced voltage, resonance like this at the right-hand member of winding, after be all shake always, starting of oscillation be Q1.
In concrete enforcement, in the load of foregoing circuit, be in series with electric capacity C2 and electric capacity C3, the object arranged like this is to make interchange in conducting attitude between electric capacity C2 and electric capacity C3, to avoid the problem that electric current is too high when power output is higher.It should be noted that, above-mentioned electric capacity C2 and electric capacity C3 should be preferably polarity free capacitor, and polarity free capacitor here should not adopt ceramic disc capacitor, and should adopt high frequency capacitance.
In concrete enforcement, field effect transistor Q2 and field effect transistor Q1 can be adopted as the field effect transistor of integrated chip IRF1010.
In concrete enforcement, field effect transistor Q2 is the field effect transistor of N raceway groove, and field effect transistor Q1 is the field effect transistor of P raceway groove.
In concrete enforcement, the resistance of resistance R1 and resistance 2 is 100 ohm, and when the resistance of resistance R3 and resistance R4 is 150 ohm, effect is best.
In sum, the present invention can realize starting of oscillation fast, and overcomes when bearing power is too high, causes the problem that electric current is too high.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (5)
1. inversion power supply circuits, it is characterized in that: comprise resistance R1, resistance R2, resistance R3, resistance R4 and electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, diode D2, Transformer Winding T1 and field effect transistor Q1 and field effect transistor Q2, as shown in the figure, the grid of field effect transistor Q1 is by resistance R1 ground connection, the source ground of field effect transistor Q1, the first end of one side winding in the drain electrode connection transformer winding T1 of field effect transistor Q1, and the grid of field effect transistor Q2 is connected by resistance R4, the grid of field effect transistor Q2 is by resistance R2 ground connection, the grounded drain of field effect transistor Q2, second end of one side winding in the source electrode connection transformer winding T1 of field effect transistor Q2, and by resistance R3 ground connection, on one side a tap voltage is connected with between the first end of winding and the second end in Transformer Winding T1, in addition, an electric capacity C1 is parallel with between 3rd end of another side winding and the 4th end in Transformer Winding T1, one end of electric capacity C1 connects one end of electric capacity C2 and electric capacity C3 respectively, the other end of electric capacity C1 connects the positive pole of diode D1 and the negative pole of diode D2 respectively, the other end of electric capacity C2 connects the negative pole of diode D1, the other end of electric capacity C3 connects the positive pole of diode D2, one end of electric capacity C4 is connected to the negative pole of diode D1, the other end of electric capacity C4 is connected to the positive pole of diode D2, and the two ends of electric capacity C4 are parallel with an electric light L1.
2. inversion power supply circuits according to claim 1, is characterized in that: field effect transistor Q2 and field effect transistor Q1 is the field effect transistor integrated chip of IRF1010 type.
3. inversion power supply circuits according to claim 1, is characterized in that: field effect transistor Q2 is the field effect transistor of N raceway groove, and field effect transistor Q1 is the field effect transistor of P raceway groove.
4. inversion power supply circuits according to claim 1, is characterized in that: the resistance of resistance R1 and resistance 2 is 100 ohm.
5. inversion power supply circuits according to claim 4, is characterized in that: the resistance of resistance R3 and resistance R4 is 150 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885842.4A CN105281595A (en) | 2015-12-04 | 2015-12-04 | Inverter power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885842.4A CN105281595A (en) | 2015-12-04 | 2015-12-04 | Inverter power supply circuit |
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| Publication Number | Publication Date |
|---|---|
| CN105281595A true CN105281595A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510885842.4A Pending CN105281595A (en) | 2015-12-04 | 2015-12-04 | Inverter power supply circuit |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11289768A (en) * | 1998-04-03 | 1999-10-19 | Toko Inc | Self-exciting resonance type power source |
| JP2008061371A (en) * | 2006-08-31 | 2008-03-13 | Toko Inc | Self-excited resonant switching power supply |
| CN202713129U (en) * | 2012-05-31 | 2013-01-30 | 洛阳隆盛科技有限责任公司 | Accelerating oscillation starting circuit |
| CN103401466A (en) * | 2013-06-24 | 2013-11-20 | 华为技术有限公司 | Inversion power supply system |
| CN103460589A (en) * | 2011-03-29 | 2013-12-18 | 索尼公司 | An AC tied inverter, system and method |
| CN103683941A (en) * | 2013-12-12 | 2014-03-26 | 南京航空航天大学 | Isolation type resonance high step-up ratio circuit |
| CN205584580U (en) * | 2015-12-04 | 2016-09-14 | 重庆臻远电气有限公司 | Contravariant supply circuit |
-
2015
- 2015-12-04 CN CN201510885842.4A patent/CN105281595A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11289768A (en) * | 1998-04-03 | 1999-10-19 | Toko Inc | Self-exciting resonance type power source |
| JP2008061371A (en) * | 2006-08-31 | 2008-03-13 | Toko Inc | Self-excited resonant switching power supply |
| CN103460589A (en) * | 2011-03-29 | 2013-12-18 | 索尼公司 | An AC tied inverter, system and method |
| CN202713129U (en) * | 2012-05-31 | 2013-01-30 | 洛阳隆盛科技有限责任公司 | Accelerating oscillation starting circuit |
| CN103401466A (en) * | 2013-06-24 | 2013-11-20 | 华为技术有限公司 | Inversion power supply system |
| CN103683941A (en) * | 2013-12-12 | 2014-03-26 | 南京航空航天大学 | Isolation type resonance high step-up ratio circuit |
| CN205584580U (en) * | 2015-12-04 | 2016-09-14 | 重庆臻远电气有限公司 | Contravariant supply circuit |
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Application publication date: 20160127 |
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