CN102420521B - Capacitor and inductor conjugated voltage-dropping circuit - Google Patents
Capacitor and inductor conjugated voltage-dropping circuit Download PDFInfo
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- CN102420521B CN102420521B CN201010294467.3A CN201010294467A CN102420521B CN 102420521 B CN102420521 B CN 102420521B CN 201010294467 A CN201010294467 A CN 201010294467A CN 102420521 B CN102420521 B CN 102420521B
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- 239000003990 capacitor Substances 0.000 title claims abstract description 74
- 230000006837 decompression Effects 0.000 claims description 35
- 239000004065 semiconductor Substances 0.000 claims description 35
- 230000003321 amplification Effects 0.000 claims description 30
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 30
- 238000001914 filtration Methods 0.000 claims description 23
- 230000021615 conjugation Effects 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 2
- 239000011049 pearl Substances 0.000 claims 3
- 230000000717 retained effect Effects 0.000 abstract description 2
- 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
AC power reduction voltage circuit, known have resistance step-down, capacitance decompression, an inductance step-down, resistance step-down because of its power consumption large, only when small-power, adopt capacitance decompression, inductance step-down, because of its power factor poor, also when small-power, adopt, when slightly high-power, just needing increases compensating circuit, otherwise can increase the loss of circuit.
Summary of the invention
In order to solve capacitance decompression in prior art, 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, comprise capacity voltage dropping circuit (1), load one (2), inductance reduction voltage circuit (3), load two (4), AC power two termination capacitor reduction voltage circuit (1) two inputs, 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 load 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 whole 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), after 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 surge circuit (7) two output termination loads one (2).
4, described inductance reduction voltage circuit (1) comprises buck inductor (8), current rectifying and wave filtering circuit (9), after 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, described load one (2), load two (4), is LED lamp pearl, can be single, can be also through string, and, many compositions of series-parallel connection.
6, described capacity voltage dropping circuit (1), decompression capacitor (5) is decompression capacitor (C), current rectifying and wave filtering circuit (6) is by diode (D1), (D2), (D3), (D4) and filter capacitor (C1) form, , prevent that surge circuit (7) is by semiconductor device (BG) and the resistance (R2) with amplification characteristic, (R3), (R4) form, after 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 forming, bridge rectifier is exported and is connect after filter capacitor (C1), one end series resistor (R2), connect again one end of the semiconductor device (BG) with amplification characteristic, one end output as capacity voltage dropping circuit (1), another termination of bridge rectifier output has the other end of the semiconductor device (BG) of amplification characteristic, after series resistor (R3), the other end as capacity voltage dropping circuit (1) is exported again, this end output is gone back series resistor (R4) to the control utmost point with the semiconductor device (BG) of amplification characteristic.
7, described capacity voltage dropping circuit (1), decompression capacitor wherein (C), in parallel resistance (R1), and resistance (R2) resistance is 0 to have cancelled, resistance (R3) is in parallel has the semiconductor device (D5) of stabilized voltage characteristic.
8, described capacity voltage dropping circuit (1), decompression capacitor (5) is decompression capacitor (C), current rectifying and wave filtering circuit (6) is by diode (D1), (D2), (D3), (D4) and filter capacitor (C1) form, prevent that surge circuit (7) is by the semiconductor device (BG) with amplification characteristic, diode (D6) and the resistance (R5) with stabilized voltage characteristic, (R6), form, after 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 forming, bridge rectifier is exported and is connect after filter capacitor (C1), one 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, 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 one end of the semiconductor device (BG) with amplification characteristic, the other end with the semiconductor device (BG) of amplification characteristic, another output as capacity voltage dropping circuit (1).
9, described capacity voltage dropping circuit (1), decompression capacitor wherein (C), in parallel resistance (R1), filter capacitor (C2) on load LED lamp.
10, described inductance reduction voltage circuit (1) is buck inductor (8), current rectifying and wave filtering circuit (9) is by diode (D1), (D2), (D3), (D4) and filter capacitor (C1) form, after AC power one end serial connection buck inductor (L), together connect by diode (D1) with another input of AC power, (D2), (D3), the bridge rectifier input (D4) forming, bridge rectifier is exported and is connect after filter capacitor (C1), and 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, due to conjugate impedance match, has greatly improved power factor, has reduced line loss, has retained the energy-conservation of capacitance decompression and inductance step-down simultaneously, and reliable, cost is low, the advantage that the life-span is long.
Accompanying drawing explanation
Fig. 1 is 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 the drawings and specific embodiments, the present invention is elaborated.
First in conjunction with Fig. 1, 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 Fig. 1: AC power two termination capacitor reduction voltage circuit (1) two inputs, 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 load two (4) two ends.Electric current in capacity voltage dropping circuit is ahead of voltage, electric current in inductance reduction voltage circuit lags behind voltage, and capacity voltage dropping circuit and inductance reduction voltage circuit are in parallel, when two kinds of reduction voltage circuits make it conjugate impedance match, the electric current of the two is suitable, can be compensated, thereby greatly improve power factor.
Again further technical scheme is laid down a definition.
Fig. 2 is the electric functional-block diagram of capacity voltage dropping circuit, after 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 surge circuit (7) two output termination loads one (2).In common capacity voltage dropping circuit, increased and prevented surge circuit, the surge current while having eliminated voltage jump and Switching Power Supply.
Fig. 3 is the electric functional-block diagram of inductance reduction voltage circuit, after 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).
Fig. 4 is one of electrical schematic diagram of capacity voltage dropping circuit, after 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 forming, bridge rectifier is exported and is connect after filter capacitor (C1), one end series resistor (R2), connect again one end of the semiconductor device (BG) with amplification characteristic, one end output as capacity voltage dropping circuit (1), another termination of bridge rectifier output has the other end of the semiconductor device (BG) of amplification characteristic, after series resistor (R3), the other end as capacity voltage dropping circuit (1) is exported again, this end output is gone back series resistor (R4) to the control utmost point with the semiconductor device (BG) of amplification characteristic.Wherein resistance (R3) is sampling resistor, the signal that surge current produces by sampling resistor is by resistance (R4), semiconductor device (BG) conducting that control has amplification characteristic absorbs surge current, and resistance (R2) is that current-limiting resistance limits the semiconductor device (BG) that excessive electric current damage has amplification characteristic.
Fig. 5 be capacity voltage dropping circuit electrical schematic diagram two, be with Fig. 4 difference: decompression capacitor wherein (C), in parallel resistance (R1), resistance (R2) resistance is 0 to have cancelled, resistance (R3) is in parallel has the semiconductor device (D5) of stabilized voltage characteristic.Parallel resistance (R1), that dielectric loss when electric capacity is very little, insulation resistance has discharge loop when very large, cancel resistance (R2) and be when the internal resistance of source and rectification circuit internal resistance larger, when surge current can not damage the semiconductor device (BG) with amplification characteristic, resistance (R2) can be 0, the semiconductor device (D5) that resistance (R3) is in parallel has a stabilized voltage characteristic is because during external circuit short circuit, resistance (R3) has excessive voltage and damages the semiconductor device (BG) with amplification characteristic, and the semiconductor device (D5) with stabilized voltage characteristic has limited the voltage on resistance (R3).
Fig. 6 be capacity voltage dropping circuit electrical schematic diagram three, after 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 forming, bridge rectifier is exported and is connect after filter capacitor (C1), one 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, 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 one end of the semiconductor device (BG) with amplification characteristic, the other end with the semiconductor device (BG) of amplification characteristic, another output as 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), in parallel resistance (R1), filter capacitor (C2) on load LED lamp.With Fig. 5 decompression capacitor (C) parallel resistance (R1), that dielectric loss when electric capacity is very little, insulation resistance has discharge loop when very large, filter capacitor (C2) also can be impacted, and can eliminate on load LED lamp when the fooled surge of rectification output is very large.
Fig. 8 is the electrical schematic diagram of inductance reduction voltage circuit, after 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 forming, bridge rectifier is exported and is connect after filter capacitor (C1), and 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, because it is simple, reliable, energy-conservation in sum, the long-life, will be widely used.
Claims (8)
1. a capacitor and inductor conjugation reduction voltage circuit, it 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 circuit (1) two inputs, 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 load two (4) two ends; Described capacity voltage dropping circuit (1) and inductance reduction voltage circuit (3) conjugate impedance match, make the power factor of whole circuit reach maximum; Described load one (2), load two (4) are all LED lamp pearls, described LED lamp pearl be single or through string, and, many compositions of series-parallel connection.
2. 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) comprises decompression capacitor (5), current rectifying and wave filtering circuit (6), prevent surge circuit (7), after 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 surge circuit (7) two output termination loads one (2).
3. 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), after AC power one end serial connection buck inductor (8), with another input of AC power, together connect current rectifying and wave filtering circuit (9) two inputs, current rectifying and wave filtering circuit (9) two output termination loads two (4).
4. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 2, it is characterized in that in described capacity voltage dropping circuit (1), decompression capacitor (5) is decompression capacitor C, current rectifying and wave filtering circuit (6) is by diode D1, diode D2, diode D3, diode D4 and filter capacitor C1 form, prevent that surge circuit (7) is by semiconductor device BG and the resistance R 2 with amplification characteristic, resistance R 3, resistance R 4 forms, after the serial connection decompression capacitor C of AC power one end, together connect by diode D1 with another input of AC power, diode D2, diode D3, the bridge rectifier input that diode D4 forms, bridge rectifier is exported and is connect after filter capacitor C1, one end series resistor R2, connect again the one end of the semiconductor device BG with amplification characteristic, one end output as capacity voltage dropping circuit (1), another termination of bridge rectifier output has the other end of the semiconductor device BG of amplification characteristic, after series resistor R3, the other end as capacity voltage dropping circuit (1) is exported again, this end output is gone back series resistor R4 to the control utmost point with the semiconductor device BG of amplification characteristic.
5. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 4, it is characterized in that described capacity voltage dropping circuit (1), decompression capacitor C parallel connection wherein resistance R 1, resistance R 2 resistances are 0, resistance R 3 parallel connections there is the semiconductor device D5 of stabilized voltage characteristic.
6. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 2, it is characterized in that in described capacity voltage dropping circuit (1), decompression capacitor (5) is decompression capacitor C, current rectifying and wave filtering circuit (6) is by diode D1, diode D2, diode D3, diode D4 and filter capacitor C1 form, prevent that surge circuit (7) is by the semiconductor device BG with amplification characteristic, diode D6 and the resistance R 5 with stabilized voltage characteristic, resistance R 6, form, after the serial connection decompression capacitor C of AC power one end, together connect by diode D1 with another input of AC power, diode D2, diode D3, the bridge rectifier input that diode D4 forms, bridge rectifier is exported and is connect after filter capacitor C1, one 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, 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 the one end of the semiconductor device BG with amplification characteristic, there is the other end of semiconductor device BG of amplification characteristic as another output of capacity voltage dropping circuit (1).
7. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 2, it is characterized in that in described capacity voltage dropping circuit (1), decompression capacitor (5) is decompression capacitor C, current rectifying and wave filtering circuit (6) is by diode D1, diode D2, diode D3, diode D4 forms, prevent that surge circuit (7) is by the semiconductor device BG with amplification characteristic, diode D6 and the resistance R 5 with stabilized voltage characteristic, resistance R 6, form, after the serial connection decompression capacitor C of AC power one end, together connect by diode D1 with another input of AC power, diode D2, diode D3, the bridge rectifier input that diode D4 forms, bridge rectifier output one 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, 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 the one end of the semiconductor device BG with amplification characteristic, there is the other end of semiconductor device BG of amplification characteristic as another output of capacity voltage dropping circuit (1),
Decompression capacitor C parallel connection wherein resistance R 1, filter capacitor C1 on load LED lamp pearl.
8. a kind of capacitor and inductor conjugation reduction voltage circuit according to claim 3, it is characterized in that described inductance reduction voltage circuit (1) is buck inductor (8), current rectifying and wave filtering circuit (9) is by diode D1, diode D2, diode D3, diode D4 and filter capacitor C1 form, after the serial connection buck inductor L of AC power one end, together connect by diode D1 with another input of AC power, diode D2, diode D3, the bridge rectifier input that diode D4 forms, bridge rectifier is exported and is connect after filter capacitor C1, two ends are as two outputs of capacity voltage dropping circuit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010294467.3A CN102420521B (en) | 2010-09-28 | 2010-09-28 | Capacitor and inductor conjugated voltage-dropping circuit |
Applications Claiming Priority (1)
| 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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| Publication Number | Publication Date |
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| CN102420521A CN102420521A (en) | 2012-04-18 |
| CN102420521B true CN102420521B (en) | 2014-11-05 |
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| CN201010294467.3A Expired - Fee Related CN102420521B (en) | 2010-09-28 | 2010-09-28 | Capacitor and inductor conjugated voltage-dropping circuit |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102573244B (en) * | 2012-02-28 | 2015-04-29 | 福建农林大学 | High-power factor low-aberration rate high-power light-emitting diode (LED) driving circuit |
| CN102665362B (en) * | 2012-05-28 | 2014-04-09 | 济南九恒实业有限公司 | Earthing type protective infrared human-sensing LED smart lamp |
| 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 |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB635304A (en) * | 1939-05-06 | 1950-04-05 | Sylvania Electric Prod | Non-stroboscopic discharge lamp units |
| CN2884777Y (en) * | 2006-01-10 | 2007-03-28 | 田明放 | LED lamp driving circuit |
| CN101001016A (en) * | 2006-01-13 | 2007-07-18 | 汤征宁 | Capacity voltage dropping surge absorption circuit |
| CN101553064A (en) * | 2009-04-28 | 2009-10-07 | 普照光电科技股份有限公司 | Drive circuit of LED |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5436553A (en) * | 1993-09-24 | 1995-07-25 | Tektronix, Inc. | Optical power conversion |
| CN2405392Y (en) * | 1999-11-02 | 2000-11-08 | 西安无线电二厂 | Conjugated inductance ballast for double gas discharge lamp |
| CN101841951B (en) * | 2010-01-12 | 2014-04-02 | 北京星网锐捷网络技术有限公司 | LED driving circuit |
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2010
- 2010-09-28 CN CN201010294467.3A patent/CN102420521B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB635304A (en) * | 1939-05-06 | 1950-04-05 | Sylvania Electric Prod | Non-stroboscopic discharge lamp units |
| CN2884777Y (en) * | 2006-01-10 | 2007-03-28 | 田明放 | LED lamp driving circuit |
| CN101001016A (en) * | 2006-01-13 | 2007-07-18 | 汤征宁 | Capacity voltage dropping surge absorption circuit |
| CN101553064A (en) * | 2009-04-28 | 2009-10-07 | 普照光电科技股份有限公司 | Drive circuit of LED |
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| CN102420521A (en) | 2012-04-18 |
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