CN102420521A - Capacitor and inductor conjugated voltage-dropping circuit - Google Patents
Capacitor and inductor conjugated voltage-dropping circuit Download PDFInfo
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- CN102420521A CN102420521A CN2010102944673A CN201010294467A CN102420521A CN 102420521 A CN102420521 A CN 102420521A CN 2010102944673 A CN2010102944673 A CN 2010102944673A CN 201010294467 A CN201010294467 A CN 201010294467A CN 102420521 A CN102420521 A CN 102420521A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 73
- 230000006837 decompression Effects 0.000 claims description 32
- 239000004065 semiconductor Substances 0.000 claims description 31
- 230000003321 amplification Effects 0.000 claims description 26
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 26
- 238000001914 filtration Methods 0.000 claims description 22
- 230000021615 conjugation Effects 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 15
- 238000004134 energy conservation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The invention relates to a capacitor and inductor conjugated voltage-dropping circuit. As is known, the modes of the alternating-current power supply voltage-dropping circuit include resistor voltage-dropping, capacitor voltage-dropping and inductor voltage-dropping; the resistor voltage-dropping mode is usually used in a small power status due to the high power consumption; the capacitor voltage-dropping and the inductor voltage-dropping modes are also usually used in a small power status due to poor power factors; when the capacitor voltage-dropping and the inductor voltage-dropping modes are used in a slightly higher power status, compensation circuits are required to be added, otherwise, the loss of the circuit can be increased. In order to solve the problem on applying the capacitor voltage-dropping and the inductor voltage-dropping modes in the prior art to a high power status, in the invention, the capacitor voltage-dropping and the inductor voltage-dropping modes are combined together, and are conjugated and mutually matched, therefore, the power factor is greatly increased, the circuit loss is reduced, and simultaneously the advantages of energy saving, reliability, low cost and long service life of the capacitor voltage-dropping and the inductor voltage-dropping modes are retained.
Description
Technical field
The present invention relates to the technical field of AC power step-down, particularly relate to a kind of capacitor and inductor conjugation reduction voltage circuit.
Background technology
The AC power reduction voltage circuit, known have resistance step-down, a capacitance decompression; The inductance step-down, the resistance step-down is big because of its power consumption, only when small-power, adopts; Capacitance decompression, the inductance step-down, because of its power factor poor; Also when small-power, adopt, just needing when high-power slightly increases compensating circuit, otherwise can increase the loss of circuit.
Summary of the invention
In order to solve capacitance decompression in the prior art, the inductance step-down, the application in high-power, the invention provides a kind of efficient, energy-conservation, reliable, a kind of capacitor and inductor conjugation reduction voltage circuit that power factor is high.The present invention proposes following technical scheme:
1, a kind of capacitor and inductor conjugation reduction voltage circuit comprises capacity voltage dropping circuit (1); Load one (2), inductance reduction voltage circuit (3), load two (4); AC power two termination capacitor reduction voltage circuits (1) two input; While also connects inductance reduction voltage circuit (3) two inputs, capacity voltage dropping circuit (1) two output termination load one (2) two end, inductance reduction voltage circuit (3) two output termination loads two (4) two ends.
2, described capacity voltage dropping circuit (1) and inductance reduction voltage circuit (3) should conjugate impedance match, make the power factor of entire circuit reach maximum.
3, described capacity voltage dropping circuit (1) comprises decompression capacitor (5), current rectifying and wave filtering circuit (6); Prevent surge circuit (7), behind the AC power one end serial connection decompression capacitor (5), with another input of AC power; Together connect current rectifying and wave filtering circuit (6) two inputs; Current rectifying and wave filtering circuit (6) two outputs are together taken over control only surge circuit (7) two inputs, prevent (7) the two output termination loads one (2) of surge circuit.
4, described inductance reduction voltage circuit (1) comprises buck inductor (8), current rectifying and wave filtering circuit (9); Behind the AC power one end serial connection buck inductor (8),, together connect current rectifying and wave filtering circuit (6) two inputs with another input of AC power; Current rectifying and wave filtering circuit (6) two outputs connect load two (4).
5, described load one (2), load two (4) is a LED lamp pearl, can be single, also can be through string, and, many compositions of series-parallel connection.
6, described capacity voltage dropping circuit (1), decompression capacitor (5) are decompression capacitor (C), and current rectifying and wave filtering circuit (6) is by diode (D1); (D2), (D3), (D4) and filter capacitor (C1) form; Prevent surge circuit (7) by semiconductor device with amplification characteristic (BG) and resistance (R2), (R3), (R4) form; Behind the AC power one end serial connection decompression capacitor (C), together connect by diode (D1), (D2) with another input of AC power; (D3), the bridge rectifier input of (D4) forming, bridge rectifier output and connect filter capacitor (C1) after; One end series resistor (R2) connects an end of the semiconductor device (BG) with amplification characteristic again, as the end output of capacity voltage dropping circuit (1); Another termination of bridge rectifier output has the other end of the semiconductor device (BG) of amplification characteristic, and series resistor (R3) back is as the other end output of capacity voltage dropping circuit (1) again, and the control utmost point of series resistor (R4) to the semiconductor device with amplification characteristic (BG) gone back in this end output.
7, described capacity voltage dropping circuit (1), decompression capacitor wherein (C), parallel connection resistance (R1), resistance (R2) resistance is 0 to have cancelled, resistance (R3) parallel connection have a semiconductor device (D5) of stabilized voltage characteristic.
8, described capacity voltage dropping circuit (1), decompression capacitor (5) are decompression capacitor (C); Current rectifying and wave filtering circuit (6) is by diode (D1), (D2), and (D3); (D4) and filter capacitor (C1) form, prevent surge circuit (7) by the semiconductor device with amplification characteristic (BG), have the diode (D6) and the resistance (R5) of stabilized voltage characteristic; (R6), form, behind the AC power one end serial connection decompression capacitor (C); Together connect by diode (D1) with another input of AC power, (D2), (D3); (D4) the bridge rectifier input of forming, bridge rectifier output and connect filter capacitor (C1) after, an end is as an output of capacity voltage dropping circuit (1); This output series resistor (R5) is connected to the control utmost point of the semiconductor device (BG) with amplification characteristic, and this control utmost point is connected in series the diode (D6) with stabilized voltage characteristic again, is connected to the other end of bridge rectifier output; This end series resistor (R6) is connected to an end of the semiconductor device (BG) with amplification characteristic, has the other end of the semiconductor device (BG) of amplification characteristic, as another output of capacity voltage dropping circuit (1).
9, described capacity voltage dropping circuit (1), decompression capacitor wherein (C), parallel connection resistance (R1), filter capacitor (C2) and on load LED lamp.
10, described inductance reduction voltage circuit (1) is buck inductor (8), and current rectifying and wave filtering circuit (9) is by diode (D1), (D2); (D3), (D4) and filter capacitor (C1) form, behind the AC power one end serial connection buck inductor (L); Together connect by diode (D1) with another input of AC power, (D2), (D3); (D4) the bridge rectifier input of forming, bridge rectifier output and connect filter capacitor (C1) after, two ends are as two outputs of capacity voltage dropping circuit (1).
Beneficial effect of the present invention
The present invention combines capacitance decompression and inductance step-down, because conjugate impedance match has improved power factor greatly, has reduced line loss, has kept the energy-conservation of capacitance decompression and inductance step-down simultaneously, and reliable, cost is low, the advantage that the life-span is long.
Description of drawings
Fig. 1 is an electric functional-block diagram of the present invention
Fig. 2 is the electric functional-block diagram of capacity voltage dropping circuit
Fig. 3 is the electric functional-block diagram of inductance reduction voltage circuit
Fig. 4 is one of electrical schematic diagram of capacity voltage dropping circuit
Fig. 5 be capacity voltage dropping circuit electrical schematic diagram two
Fig. 6 be capacity voltage dropping circuit electrical schematic diagram three
Fig. 7 be capacity voltage dropping circuit electrical schematic diagram four
Fig. 8 is the electrical schematic diagram of inductance reduction voltage circuit
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
At first combine Fig. 1 that overall technological scheme of the present invention is laid down a definition.
A kind of capacitor and inductor conjugation of the present invention reduction voltage circuit; Shown in Figure 1: AC power two termination capacitor reduction voltage circuits (1) two input; While also connects inductance reduction voltage circuit (3) two inputs; Capacity voltage dropping circuit (1) two output termination load one (2) two end, inductance reduction voltage circuit (3) two output termination loads two (4) two ends.Electric current in the capacity voltage dropping circuit is ahead of voltage; Electric current in the inductance reduction voltage circuit lags behind voltage; And capacity voltage dropping circuit and inductance reduction voltage circuit are parallelly connected, and when two kinds of reduction voltage circuits made it conjugate impedance match, the electric current of the two was suitable; Can be compensated, thereby improve power factor greatly.
Again further technical scheme is laid down a definition.
Fig. 2 is the electric functional-block diagram of capacity voltage dropping circuit; Behind the AC power one end serial connection decompression capacitor (5); With another input of AC power, together connect current rectifying and wave filtering circuit (6) two inputs, current rectifying and wave filtering circuit (6) two outputs; Together take over control only surge circuit (7) two inputs, prevent (7) the two output termination loads one (2) of surge circuit.In common capacity voltage dropping circuit, increased and prevented the surge circuit, the surge current when having eliminated voltage jump and Switching Power Supply.
Fig. 3 is the electric functional-block diagram of inductance reduction voltage circuit, behind the AC power one end serial connection buck inductor (8), with another input of AC power, together connects current rectifying and wave filtering circuit (6) two inputs, and current rectifying and wave filtering circuit (6) two outputs connect load two (4).
Fig. 4 is one of electrical schematic diagram of capacity voltage dropping circuit, behind the AC power one end serial connection decompression capacitor (C), together connects by diode (D1) with another input of AC power; (D2); (D3), the bridge rectifier input of (D4) forming, bridge rectifier output and connect filter capacitor (C1) after; One end series resistor (R2); Connect an end of the semiconductor device (BG) with amplification characteristic again, as the end output of capacity voltage dropping circuit (1), another termination of bridge rectifier output has the other end of the semiconductor device (BG) of amplification characteristic; Series resistor (R3) back is as the other end output of capacity voltage dropping circuit (1) again, and the control utmost point of series resistor (R4) to the semiconductor device with amplification characteristic (BG) gone back in this end output.Wherein resistance (R3) is sampling resistor; Surge current passes through resistance (R4) through the signal that sampling resistor produces; Semiconductor device (BG) conducting that control has amplification characteristic absorbs surge current, and resistance (R2) is that the excessive electric current of current-limiting resistance restriction damages the semiconductor device (BG) with amplification characteristic.
Fig. 5 be capacity voltage dropping circuit electrical schematic diagram two, be with Fig. 4 difference: decompression capacitor wherein (C), parallel connection resistance (R1), resistance (R2) resistance is 0 to have cancelled, resistance (R3) parallel connection have a semiconductor device (D5) of stabilized voltage characteristic.Parallel resistance (R1); Be that dielectric loss when electric capacity is very little; Insulation resistance has discharge loop when very big, cancellation resistance (R2) be when the internal resistance of source and rectification circuit internal resistance bigger, when surge current can not damage the semiconductor device (BG) with amplification characteristic; Resistance (R2) can be 0; Resistance (R3) parallel connection have a stabilized voltage characteristic semiconductor device (D5) be that resistance (R3) has excessive voltage and damages the semiconductor device (BG) with amplification characteristic because during the external circuit short circuit, the semiconductor device (D5) with stabilized voltage characteristic has limited the voltage on the resistance (R3).
Fig. 6 be capacity voltage dropping circuit electrical schematic diagram three, behind the AC power one end serial connection decompression capacitor (C), together connect by diode (D1) with another input of AC power; (D2), (D3), the bridge rectifier input of (D4) forming; Bridge rectifier output and connect filter capacitor (C1) after; One end is as an output of capacity voltage dropping circuit (1), and this output series resistor (R5) is connected to the control utmost point of the semiconductor device (BG) with amplification characteristic, and this control utmost point is connected in series the diode (D6) with stabilized voltage characteristic again; Be connected to the other end of bridge rectifier output; This end series resistor (R6) is connected to an end of the semiconductor device (BG) with amplification characteristic, has the other end of the semiconductor device (BG) of amplification characteristic, as another output of capacity voltage dropping circuit (1).Wherein resistance (R6) has limited surge current, plays the effect of antisurge.
Fig. 7 be capacity voltage dropping circuit electrical schematic diagram four, be with Fig. 6 difference: decompression capacitor wherein (C), parallel connection resistance (R1), filter capacitor (C2) and on load LED lamp.With Fig. 5 decompression capacitor (C) parallel resistance (R1), be that the dielectric loss when electric capacity is very little, insulation resistance has discharge loop when very big, and filter capacitor (C2) also can be impacted when very big at the rectification output surge of being taken in, and on load LED lamp, can eliminate.
Fig. 8 is the electrical schematic diagram of inductance reduction voltage circuit; Behind the AC power one end serial connection buck inductor (L), together connect by diode (D1), (D2) with another input of AC power; (D3); (D4) the bridge rectifier input of forming, bridge rectifier output and connect filter capacitor (C1) after, two ends are as two outputs of capacity voltage dropping circuit (1).The buck inductor of inductance reduction voltage circuit (L) must with decompression capacitor (C) conjugate impedance match of capacity voltage dropping circuit, to improve power factor.
Capacitor and inductor conjugation reduction voltage circuit is reliable, energy-conservation because of it is simple in sum, the long-life, will be widely used.
Claims (10)
1. a capacitor and inductor conjugation reduction voltage circuit is characterized in that comprising capacity voltage dropping circuit (1), load one (2); Inductance reduction voltage circuit (3); Load two (4), AC power two termination capacitor reduction voltage circuits (1) two input, the while also connects inductance reduction voltage circuit (3) two inputs; Capacity voltage dropping circuit (1) two output termination load one (2) two end, inductance reduction voltage circuit (3) two output termination loads two (4) two ends.
2. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 1 is characterized in that described capacity voltage dropping circuit (1) and inductance reduction voltage circuit (3) should conjugate impedance match, makes the power factor of entire circuit reach maximum.
3. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 1 is characterized in that described capacity voltage dropping circuit (1) comprises decompression capacitor (5), current rectifying and wave filtering circuit (6); Prevent surge circuit (7), behind the AC power one end serial connection decompression capacitor (5), with another input of AC power; Together connect current rectifying and wave filtering circuit (6) two inputs; Current rectifying and wave filtering circuit (6) two outputs are together taken over control only surge circuit (7) two inputs, prevent (7) the two output termination loads one (2) of surge circuit.
4. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 1; It is characterized in that described inductance reduction voltage circuit (1) comprises buck inductor (8), current rectifying and wave filtering circuit (9) is behind the AC power one end serial connection buck inductor (8); With another input of AC power; Together connect current rectifying and wave filtering circuit (6) two inputs, current rectifying and wave filtering circuit (6) two outputs connect load two (4).
5. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 1 is characterized in that described load one (2), and load two (4) is a LED lamp pearl, can be single, also can be through string, and, many compositions of series-parallel connection.
6. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 1 is characterized in that described capacity voltage dropping circuit (1), and decompression capacitor (5) is decompression capacitor (C); Current rectifying and wave filtering circuit (6) is by diode (D1), (D2), and (D3); (D4) and filter capacitor (C1) form,, prevent that surge circuit (7) is by semiconductor device with amplification characteristic (BG) and resistance (R2); (R3), (R4) form AC power one end serial connection decompression capacitor (behind the C); Together connect by diode (D1) with another input of AC power, (D2), (D3); (D4) the bridge rectifier input of forming, bridge rectifier output and connect filter capacitor (C1) after, an end series resistor (R2); Connect an end of the semiconductor device (BG) with amplification characteristic again, as the end output of capacity voltage dropping circuit (1), another termination of bridge rectifier output has the other end of the semiconductor device (BG) of amplification characteristic; Series resistor (R3) back is as the other end output of capacity voltage dropping circuit (1) again, and the control utmost point of series resistor (R4) to the semiconductor device with amplification characteristic (BG) gone back in this end output.
7. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 1; It is characterized in that described capacity voltage dropping circuit (1), decompression capacitor wherein (C), the parallel connection resistance (R1); Resistance (R2) resistance is 0 to have cancelled, resistance (R3) parallel connection have a semiconductor device (D5) of stabilized voltage characteristic.
8. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 1 is characterized in that described capacity voltage dropping circuit (1), and decompression capacitor (5) is decompression capacitor (C); Current rectifying and wave filtering circuit (6) is by diode (D1), (D2), and (D3); (D4) and filter capacitor (C1) form, prevent surge circuit (7) by the semiconductor device with amplification characteristic (BG), have the diode (D6) and the resistance (R5) of stabilized voltage characteristic; (R6), form, behind the AC power one end serial connection decompression capacitor (C); Together connect by diode (D1) with another input of AC power, (D2), (D3); (D4) the bridge rectifier input of forming, bridge rectifier output and connect filter capacitor (C1) after, an end is as an output of capacity voltage dropping circuit (1); This output series resistor (R5) is connected to the control utmost point of the semiconductor device (BG) with amplification characteristic, and this control utmost point is connected in series the diode (D6) with stabilized voltage characteristic again, is connected to the other end of bridge rectifier output; This end series resistor (R6) is connected to an end of the semiconductor device (BG) with amplification characteristic, has the other end of the semiconductor device (BG) of amplification characteristic, as another output of capacity voltage dropping circuit (1).
9. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 1 is characterized in that described capacity voltage dropping circuit (1), decompression capacitor wherein (C), parallel connection resistance (R1), filter capacitor (C2) and on load LED lamp.
10. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 1 is characterized in that described inductance reduction voltage circuit (1) is buck inductor (8), and current rectifying and wave filtering circuit (9) is by diode (D1); (D2), (D3), (D4) and filter capacitor (C1) form; Behind the AC power one end serial connection buck inductor (L), together connect by diode (D1), (D2) with another input of AC power; (D3); (D4) the bridge rectifier input of forming, bridge rectifier output and connect filter capacitor (C1) after, two ends are as two outputs of capacity voltage dropping circuit (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010294467.3A CN102420521B (en) | 2010-09-28 | 2010-09-28 | Capacitor and inductor conjugated voltage-dropping circuit |
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|---|---|---|---|
| CN201010294467.3A CN102420521B (en) | 2010-09-28 | 2010-09-28 | Capacitor and inductor conjugated voltage-dropping circuit |
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| CN102420521A true CN102420521A (en) | 2012-04-18 |
| CN102420521B CN102420521B (en) | 2014-11-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102573244A (en) * | 2012-02-28 | 2012-07-11 | 福建农林大学 | High-power factor low-aberration rate high-power light-emitting diode (LED) driving circuit |
| CN102665362A (en) * | 2012-05-28 | 2012-09-12 | 济南九恒实业有限公司 | Earthing type protective infrared human-sensing LED smart lamp |
| CN104253472A (en) * | 2014-10-11 | 2014-12-31 | 福建农林大学 | Novel charging method for storage batteries of electric automobile and device of novel charging method |
| CN104753325A (en) * | 2013-12-31 | 2015-07-01 | 欧普照明股份有限公司 | Boost-buck type direct current converting circuit |
| CN106993354A (en) * | 2017-03-31 | 2017-07-28 | 苏州市霜地节能科技有限公司 | Capacitance decompression inductance anti-surge circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102573244A (en) * | 2012-02-28 | 2012-07-11 | 福建农林大学 | High-power factor low-aberration rate high-power light-emitting diode (LED) driving circuit |
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| CN104753325A (en) * | 2013-12-31 | 2015-07-01 | 欧普照明股份有限公司 | Boost-buck type direct current converting circuit |
| CN104753325B (en) * | 2013-12-31 | 2017-11-10 | 欧普照明股份有限公司 | A kind of step-down/up type DC transfer circuit |
| CN104253472A (en) * | 2014-10-11 | 2014-12-31 | 福建农林大学 | Novel charging method for storage batteries of electric automobile and device of novel charging method |
| CN104253472B (en) * | 2014-10-11 | 2017-02-15 | 福建农林大学 | Charging method for storage batteries of electric automobile |
| CN106993354A (en) * | 2017-03-31 | 2017-07-28 | 苏州市霜地节能科技有限公司 | Capacitance decompression inductance anti-surge circuit |
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|---|---|
| CN102420521B (en) | 2014-11-05 |
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