CN201491356U - A kind of energy-saving lamp circuit - Google Patents
A kind of energy-saving lamp circuit Download PDFInfo
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- CN201491356U CN201491356U CN2009201487404U CN200920148740U CN201491356U CN 201491356 U CN201491356 U CN 201491356U CN 2009201487404 U CN2009201487404 U CN 2009201487404U CN 200920148740 U CN200920148740 U CN 200920148740U CN 201491356 U CN201491356 U CN 201491356U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 24
- 229910052710 silicon Inorganic materials 0.000 claims description 24
- 239000010703 silicon Substances 0.000 claims description 24
- 239000003990 capacitor Substances 0.000 claims description 23
- 239000004065 semiconductor Substances 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 14
- 230000006378 damage Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
本实用新型涉及一种具负载保护功能的节能灯电路，包括EMC电路、并联连接的整流电路、逆变电路、储能电路，负载，还包括一保护电路，该保护电路与所述负载通过电磁线圈耦合连接，与所述逆变电路采用直接连接方式进行连接，实现对负载电流的检测和对逆变电路的控制，由本实用新型电路装配成的电子节能灯，在输入电源电压波动，负载电流发生较大变化时能对电路输出电流进行控制，从而保护功率管不至因过流而长时间发热损坏，并实现灯管的明亮度自动快速调节，始终保持节能灯的光亮度在恒定水平，保证并延长节能灯及灯管的使用寿命。
The utility model relates to an energy-saving lamp circuit with a load protection function, comprising an EMC circuit, a rectifier circuit, an inverter circuit, an energy storage circuit connected in parallel, a load, and a protection circuit. The protection circuit is coupled to the load through an electromagnetic coil and is directly connected to the inverter circuit to realize detection of the load current and control of the inverter circuit. The electronic energy-saving lamp assembled by the circuit of the utility model can control the circuit output current when the input power supply voltage fluctuates and the load current changes greatly, thereby protecting the power tube from long-term heating damage due to overcurrent, and realizing automatic and rapid adjustment of the brightness of the lamp tube, always keeping the brightness of the energy-saving lamp at a constant level, ensuring and extending the service life of the energy-saving lamp and the lamp tube.
Description
Technical field
The utility model relates to a kind of energy-saving lamp circuit, specifically, and particularly a kind of electronic energy-saving lamp circuit of tool defencive function.
Background technology
Electricity-saving lamp has lot of advantages such as energy-saving and environmental protection, use more and more widely now, kind is also more and more, along with electricity-saving lamp replaces incandescent lamp gradually, market will be increasing to the demand of electricity-saving lamp and fluorescent tube thereof, but also find in being to use, electricity-saving lamp hazard rate on the market is very high, the recovery maintenance cost height of manufacturer influences the user quality evaluation and the use of electricity-saving lamp product is selected, on the other hand the trouble of bringing extra economic loss and using to the user really on the one hand; Simultaneously, a large amount of uses of electricity-saving lamp product, as the load carriers of electricity-saving lamp product, the use amount of power saving fluorescent lamps will be doubled and redoubled.At present, the power saving fluorescent lamps quality on the market is uneven, and the life-span is generally on the low side.On the one hand be that manufacturer production forms when making, this part ratio is less, another aspect then be the user when using the operational environment of fluorescent tube cause.China's wide geographic area power utilization environment is abominable, voltage instability, the suffered electromagnetic interference of circuit is very big, and the electricity-saving lamp product on the market does not have the corresponding strategy of these variations of reply now, and usually the brightness light and shade of fluorescent tube changes, phenomenon can appear flashing, can't bring into play the illumination effect, fluorescent tube is because of frequently being subjected to rush of current simultaneously, and long-term work also can reduce the useful life of fluorescent tube greatly under the limiting condition condition, accelerate the replacing frequency of fluorescent tube, more even can therefore damage the Circuits System of electricity-saving lamp product.Find also in the maintenance that most electricity-saving lamp product circuit fault comes across inversion, the power drive part of circuit more, the overwhelming majority wherein for power tube because of the overcurrent cause thermal damage, user's maintenanceability is very poor, has to change, even abandons.So, all social resources have been caused great waste.
The utility model content
The purpose of this utility model is; a kind of energy-saving lamp circuit that overcomes above-mentioned weakness is provided; this energy-saving lamp circuit product fluctuates at input supply voltage; or load can realize the control to load current when changing; power device is realized overcurrent protection; and to the lightness quick adjustment of fluorescent tube, the brightness that remains electricity-saving lamp guarantees and prolongs the useful life of electricity-saving lamp and fluorescent tube in constant level.
For above-mentioned purpose, the concrete technical scheme that the utility model provides is:
A kind of energy-saving lamp circuit; comprise a load; one is used for the power supply in the circuit disturbed and EMC circuit that external electromagnetic wave interference composition effectively leaches; one is converted into galvanic rectification circuit with alternating current; one is converted into alternating current that frequency is 20～40KHZ so that start the inverter circuit of power saving fluorescent lamps with direct current; described rectification circuit and described inverter circuit are connected in parallel; between described rectification circuit and inverter circuit, be parallel with accumulator; it is characterized in that: it also comprises a protective circuit; this protective circuit and described load are of coupled connections; adopt direct connected mode to be connected with described inverter circuit, realize controlling to the detection of load current with to the protection of inverter circuit.
Described protective circuit comprises resistance R 12～R17, capacitor C 11, C12, diode D16, bi-directional voltage stabilizing diode D18, controllable silicon Q3, triode Q4, solenoid T5 and delivery outlet J2, its optimum connected mode is: resistance R 16, R17 are connected in series and are parallel to rectification circuit, accumulator and inverter circuit; The negative electrode of controllable silicon Q3 is connected with the base stage of triode Q4; Resistance R 15 is parallel to base stage and the emitter two ends of triode Q4; The anode of controllable silicon Q3 is parallel to resistance R 16, the R17 contact of connecting; The elementary windings in series of bi-directional voltage stabilizing diode D18, resistance R 14, resistance R 12, diode D16, solenoid T5 is connected in the emitter two ends of the control utmost point and the triode Q4 of controllable silicon Q3; Secondary winding one end of solenoid T5 connects described accumulator, and the other end is connected to delivery outlet J2; Resistance R 12, capacitor C 11 are parallel to the emitter two ends of the control utmost point and the triode Q4 of controllable silicon Q3; Resistance R 13, capacitor C 12 are parallel to the emitter two ends of the series connection contact and the triode Q4 of bi-directional voltage stabilizing diode D18, resistance R 14; The collector electrode of triode Q4 is connected with the grid of the metal-oxide-semiconductor Q2 of above-mentioned inverter circuit;
Owing to added described protective circuit; and after connecting according to above-mentioned connected mode; when supply voltage raises unusually; lighting tube brightness is bright excessively; it is big that load current becomes; the electrorheological that flows through of the secondary winding of Chuan Lian solenoid T5 is big with it; the electric current that is coupled to its elementary winding also will become big; then the voltage of the control utmost point of controllable silicon Q3 will raise; the conducting electric current of controllable silicon Q3 also will become big because of controlled; the absorption current that is attached thereto the collector electrode of the triode Q4 that connects becomes big; thereby drag down the grid voltage of inverter circuit metal-oxide-semiconductor Q2, weaken its conducting intensity, the conducting intensity of the metal-oxide-semiconductor Q1 that is attached thereto also will weaken; thereby reduce the output current of inverter circuit; the electric current that flows through load diminishes, and makes the basic maintenance in electric current front and back constant like this, thus protection inverter power tube Q1; Q2 is unlikely because of the long-time heating damage of overcurrent; and make the brightness of electricity-saving lamp remain unanimity, prolong the useful life of power saving fluorescent lamps effectively.
When the unusual step-down of supply voltage; lighting tube brightness is crossed when dark; load current diminishes; the electric current that flows through of the secondary winding of Chuan Lian solenoid T5 diminishes with it; the electric current that is coupled to its elementary winding also will diminish; then the voltage of the control utmost point of controllable silicon Q3 will reduce; the conducting electric current of controllable silicon Q3 also will diminish because of controlled; the absorption current that is attached thereto the collector electrode of the triode Q4 that connects will diminish; thereby raise the grid voltage of inverter circuit metal-oxide-semiconductor Q2, strengthen its conducting intensity, the conducting intensity of the metal-oxide-semiconductor Q1 that is attached thereto also will be strengthened; thereby strengthen the output current of inverter circuit; the electrorheological that flows through load is big, makes the basic maintenance in electric current front and back constant like this, thus protection inverter power tube Q1; Q2; and make the brightness of electricity-saving lamp remain unanimity, prolong the useful life of power saving fluorescent lamps effectively.
Below in conjunction with drawings and Examples the utility model is done progressive explanation.
Description of drawings
Fig. 1 is the utility model energy-saving lamp circuit theory diagram;
Fig. 2 is the utility model energy-saving lamp circuit embodiment circuit theory diagrams;
Among the figure: D1～D11, D16 are diode, and D12～D15 is a voltage stabilizing didoe, and D17, D18 are the bi-directional voltage stabilizing diode; C1～C16 is an electric capacity, and R1～R18 is a resistance, and RV1 is an adjustable resistance; Q1, Q2 are metal-oxide-semiconductor, and Q3 is a controllable silicon, and Q4 is a triode; T4A, T4B, T4C, T1, T5 are solenoid, and J1 connects power supply, J2, J4 two termination power saving fluorescent lampss; the I.EMC circuit, II. rectification circuit, III. accumulator; IV. inverter circuit, V. protective circuit, VI. load.
Embodiment
Referring to Fig. 1 and Fig. 2, the energy-saving lamp circuit that the utility model provides, the rectification circuit II that comprise the EMC circuit I, is connected in parallel, inverter circuit IV, between current rectifying and wave filtering circuit II and inverter circuit IV, be parallel with accumulator III, it also comprises a protective circuit V, this protective circuit V and supported V I are of coupled connections, and IV directly is connected with inverter circuit, realize controlling to the detection of load current with to the protection of inverter circuit IV; Power saving fluorescent lamps can adopt existing electronic energy-saving lamp tube, is connected between output interface J2 in the circuit and the J4 as load; By capacitor C 13～C16 and resistance R 18, the EMC circuit I that RV1, inductance T1 form is connected in the circuit, and the interfering components in the circuit is effectively leached; The rectification circuit II that is made up of diode D1～D4 will be converted into direct current through the alternating current behind the EMC circuit I filtering interfering noise; Described inverter circuit IV mainly is made up of metal-oxide-semiconductor Q1, Q2, be used for direct current is converted into the alternating current that frequency is 20～40KHZ, to be fit to electronic energy-saving lamp work, it comprises resistance R 1～R11, diode D9～D11, voltage stabilizing didoe D12～D15, bi-directional voltage stabilizing diode D17, solenoid T4B and T4C, metal-oxide-semiconductor Q1 and Q2, and said elements has been formed inverter circuit common in the prior art; Described rectification circuit II and described inverter circuit IV are connected in parallel, accumulator III in parallel between rectification circuit II and inverter circuit IV, provide inversion needed electric flux, this accumulator III mainly is made up of diode and electric capacity, comprise diode D5～D8 and capacitor C 1～C5, diode D5～D8 is connected in series, capacitor C 1 is connected in parallel and adopts the diode D7 that is connected in series, the D8 two ends, capacitor C 2 is connected in parallel and adopts the diode D5 that is connected in series, the D6 two ends, capacitor C 3 is connected in parallel and adopts the diode D6 that is connected in series, D7, the D8 two ends, capacitor C 4 is connected in parallel and adopts the diode D6 that is connected in series, D7 two ends, capacitor C 5 are connected in parallel adopts the diode D5 that is connected in series, D6, the D7 two ends; Described protective circuit V comprises resistance R 12～R17, capacitor C 11, C12, diode D16, bi-directional voltage stabilizing diode D18, controllable silicon Q3, triode Q4, solenoid T5 and output interface J2, its optimum connected mode is: resistance R 16, R17 are connected in series and are parallel to rectification circuit II, accumulator III and inverter circuit IV; The negative electrode of controllable silicon Q3 is connected with the base stage of triode Q4; Resistance R 15 is parallel to base stage and the emitter two ends of triode Q4; The anode of controllable silicon Q3 is parallel to resistance R 16, the R17 contact of connecting; The elementary windings in series of bi-directional voltage stabilizing diode D18, resistance R 14, resistance R 12, diode D16, solenoid T5 is connected in the emitter two ends of the control utmost point and the triode Q4 of controllable silicon Q3; Secondary winding one end of solenoid T5 connects described accumulator, and the other end is connected to delivery outlet J2; Resistance R 12, capacitor C 11 are parallel to the emitter two ends of the control utmost point and the triode Q4 of controllable silicon Q3; Resistance R 13, capacitor C 12 are parallel to the emitter two ends of the series connection contact and the triode Q4 of bi-directional voltage stabilizing diode D18, resistance R 14; The collector electrode of triode Q4 is connected with the grid of the metal-oxide-semiconductor Q2 of above-mentioned inverter circuit; This protective circuit V adopts direct connected mode to be connected with described inverter circuit IV.Be of coupled connections by solenoid T5 with supported V I, certainly, the utility model only for this kind mode that is of coupled connections, for example can not adopt the resistance-capacitance coupling mode to carry out lotus root and connect.
As previously mentioned; in circuit, added above-mentioned protective circuit V; and after connecting according to above-mentioned connected mode; when supply voltage raises unusually; lighting tube brightness is bright excessively; it is big that load current becomes; the electrorheological that flows through of the secondary winding of Chuan Lian solenoid T5 is big with it; the electric current that is coupled to its elementary winding also will become big; then the voltage of the control utmost point of controllable silicon Q3 will raise; the conducting electric current of controllable silicon Q3 also will become big because of controlled, and the absorption current that is attached thereto the collector electrode of the triode Q4 that connects becomes big, thereby drag down the grid voltage of inverter circuit metal-oxide-semiconductor Q2; weaken its conducting intensity; the conducting intensity of the metal-oxide-semiconductor Q2 that is attached thereto also will weaken, thereby reduce the output current of inverter circuit, and the electric current that flows through load diminishes; basic maintenance is constant before and after making electric current like this; thereby protection inverter power tube Q1; Q2 is unlikely because of the long-time heating of overcurrent damages, and makes the brightness of electricity-saving lamp remain unanimity, prolongs the useful life of power saving fluorescent lamps effectively.
When the unusual step-down of supply voltage; lighting tube brightness is crossed when dark; load current diminishes; the electric current that flows through of Chuan Lian solenoid T5 secondary winding diminishes with it; the electric current that is coupled to elementary winding also will diminish; then the voltage of the control utmost point of controllable silicon Q3 will reduce; the conducting electric current of controllable silicon Q3 also will diminish because of controlled; the absorption current that is attached thereto the collector electrode of the triode Q4 that connects will diminish; thereby raise the grid voltage of inverter circuit metal-oxide-semiconductor Q2; strengthen its conducting intensity; the conducting intensity of the metal-oxide-semiconductor Q1 that is attached thereto also will be strengthened; thereby strengthen the output current of inverter circuit; the electrorheological that flows through load is big, makes the basic maintenance in electric current front and back constant like this, thereby realizes power device Q1; the overcurrent protection of Q2; the protection energy-saving lamp circuit also makes the brightness of electricity-saving lamp remain unanimity, prolongs the useful life of power saving fluorescent lamps effectively.
Certainly, for one of ordinary skill in the art, do not spend performing creative labour;, on the basis of the foregoing description, can do multiple variation, can realize the purpose of this utility model equally; but this variation obviously should be in the protection range of claims of the present utility model.
Claims (5)
1. energy-saving lamp circuit; rectification circuit (II), accumulator (III), inverter circuit (IV) that it comprises EMC circuit (I), is connected in parallel; load (VI); it is characterized in that; it also comprises protective circuit (V); this protective circuit (V) is of coupled connections with described load (VI), adopts direct connected mode to be connected with described inverter circuit (IV).
2. energy-saving lamp circuit according to claim 1, it is characterized in that, described protective circuit (V) comprises resistance R 12～R17, capacitor C 11 and C12, diode D16, bi-directional voltage stabilizing diode D18, controllable silicon Q3 and triode Q4, solenoid T5 and delivery outlet J2, and its connected mode is: resistance R 16, R17 are connected in series in parallel with inverter circuit (IV) with described rectification circuit (II), accumulator (III); The negative electrode of controllable silicon Q3 is connected with the base stage of triode Q4; Resistance R 15 is parallel to base stage and the emitter two ends of triode Q4; The anode of controllable silicon Q3 is parallel to resistance R 16, the R17 contact of connecting; The elementary windings in series of bi-directional voltage stabilizing diode D18, resistance R 14, resistance R 12, diode D16, solenoid T5 is connected in the emitter two ends of the control utmost point and the triode Q4 of controllable silicon Q3; Secondary winding one end of solenoid T5 connects described accumulator, and the other end is connected to delivery outlet J2; Resistance R 12, capacitor C 11 are parallel to the emitter two ends of the control utmost point and the triode Q4 of controllable silicon Q3; Resistance R 13, capacitor C 12 are parallel to the emitter two ends of the series connection contact and the triode Q4 of bi-directional voltage stabilizing diode D18, resistance R 14; The collector electrode of triode Q4 is connected with the grid of the metal-oxide-semiconductor Q2 of described inverter circuit (IV).
3. energy-saving lamp circuit according to claim 1, it is characterized in that, described accumulator (III) comprises diode D5～D8 and capacitor C 1～C5, its connected mode is: diode D5～D8 is connected in series, capacitor C 1 is connected in parallel and adopts the diode D7 that is connected in series, the D8 two ends, capacitor C 2 is connected in parallel and adopts the diode D5 that is connected in series, the D6 two ends, capacitor C 3 is connected in parallel and adopts the diode D6 that is connected in series, D7, the D8 two ends, capacitor C 4 is connected in parallel and adopts the diode D6 that is connected in series, D7 two ends, capacitor C 5 are connected in parallel adopts the diode D5 that is connected in series, D6, the D7 two ends.
4. energy-saving lamp circuit according to claim 2, it is characterized in that, described inverter circuit (IV) comprises resistance R 1～R11, capacitor C 10 and C6, diode D9～D11, voltage stabilizing didoe D12～D15, bi-directional voltage stabilizing diode D17, solenoid T4A, T4B and T4C, and it also comprises metal-oxide-semiconductor Q1 and Q2, inversion output interface J4.
5. energy-saving lamp circuit according to claim 4 is characterized in that, described load (VI) is connected between described J2, the J4, and it is of coupled connections by described solenoid T5 and described protective circuit (V).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201487404U CN201491356U (en) | 2009-03-27 | 2009-03-27 | A kind of energy-saving lamp circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201487404U CN201491356U (en) | 2009-03-27 | 2009-03-27 | A kind of energy-saving lamp circuit |
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| CN201491356U true CN201491356U (en) | 2010-05-26 |
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| CN2009201487404U Expired - Fee Related CN201491356U (en) | 2009-03-27 | 2009-03-27 | A kind of energy-saving lamp circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104955249A (en) * | 2015-07-28 | 2015-09-30 | 李泽宏 | Anti-flash LED AC driving circuit |
| CN110572918A (en) * | 2019-09-17 | 2019-12-13 | Tcl空调器(中山)有限公司 | remote controller backlight adjusting method and device and storage medium |
-
2009
- 2009-03-27 CN CN2009201487404U patent/CN201491356U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104955249A (en) * | 2015-07-28 | 2015-09-30 | 李泽宏 | Anti-flash LED AC driving circuit |
| CN110572918A (en) * | 2019-09-17 | 2019-12-13 | Tcl空调器(中山)有限公司 | remote controller backlight adjusting method and device and storage medium |
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Granted publication date: 20100526 Termination date: 20120327 |