CN211047299U - Non-inductive lighting driving circuit system - Google Patents
Non-inductive lighting driving circuit system Download PDFInfo
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- CN211047299U CN211047299U CN201921343474.0U CN201921343474U CN211047299U CN 211047299 U CN211047299 U CN 211047299U CN 201921343474 U CN201921343474 U CN 201921343474U CN 211047299 U CN211047299 U CN 211047299U
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Abstract
The utility model provides a noninductive type illumination drive circuit system, including rectifier diode, energy storage electric capacity and lighting apparatus, rectifier diode includes first diode and second diode, the earth connection is even to the negative pole electricity of second diode, energy storage electric capacity includes first electric capacity and second electric capacity, the negative pole of first diode is connected to the one end electricity of first electric capacity, the other end of first electric capacity is used for the electric zero line of connecting alternating current power supply, the one end of second electric capacity is used for the electric zero line of connecting alternating current power supply, the other end of second electric capacity is used for connecting the ground wire, lighting apparatus's positive pole electrical connection first diode's negative pole. The utility model provides a pair of noninductive type illumination drive circuit system adopts two energy storage electric capacity of first electric capacity and second electric capacity to maintain lighting apparatus's stable work, and alternating current power supply passes through the rectifier diode rectification earlier then charges for energy storage electric capacity, and this system simple structure, and do not include the perceptual component to less size has.
Description
Technical Field
The utility model relates to a noninductive type illumination drive circuit system.
Background
With the development of society, people are pursuing more and more efficient and energy-saving lighting modes, and the L ED lighting technology is paid more and more attention, the application of the lighting technology is wider and more extensive, and the number of L ED lighting devices is rapidly increased.
SUMMERY OF THE UTILITY MODEL
One of the objects of the present invention is to provide a non-inductive lighting driving circuit system to overcome the deficiencies in the prior art.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a non-inductive lighting drive circuit system comprises a rectifier diode, an energy storage capacitor and a lighting device, the rectifier diode comprises a first diode and a second diode, the anode of the first diode is used for being electrically connected with the live wire of the alternating current power supply, the cathode of the second diode is used for being electrically connected with a live wire of an alternating current power supply, the cathode of the second diode is electrically connected with a grounding wire, the energy storage capacitor comprises a first capacitor and a second capacitor, one end of the first capacitor is electrically connected with the cathode of the first diode, the other end of the first capacitor is used for being electrically connected with a zero line of an alternating current power supply, one end of the second capacitor is used for being electrically connected with the zero line of the alternating current power supply, the other end of the second capacitor is used for being connected with a ground wire, the anode of the lighting device is electrically connected with the cathode of the first diode, and the cathode of the lighting device is electrically connected with the ground wire.
According to the utility model discloses an embodiment still includes overcurrent protection device, the positive pole of first diode with the negative pole of second diode all passes through overcurrent protection device electricity connects alternating current power supply's live wire.
According to an embodiment of the utility model, lighting apparatus is L ED lamp, L ED lamp is for pasting SMD formula L ED lamp pearl, plug-in components welded formula L ED lamp pearl, integrated COB formula L ED module or L ED filament lamp strip, the quantity of L ED lamp is one or more.
According to an embodiment of the present invention, the capacitance capacity of the first capacitor is the same as the capacitance capacity of the second capacitor.
According to an embodiment of the present invention, the first capacitor is an electrolytic capacitor or a thin film capacitor; the second capacitor is an electrolytic capacitor or a thin film capacitor.
According to an embodiment of the present invention, the voltage above the lighting device is Vf, the voltage of the ac power source is Vin, and the operating voltage of the lighting device is
According to the utility model discloses an embodiment still includes the protection diode, the protection diode includes third diode and fourth diode, the third diode with first electric capacity is parallelly connected, the anodal electric connection alternating current power supply's of third diode zero line, the negative pole electric connection of third diode the negative pole of first diode, the fourth diode with second electric capacity is parallelly connected, the anodal electric connection earth connection of fourth diode, the negative pole electric connection zero line of fourth diode.
According to an embodiment of the utility model, alternating current power supply's live wire and zero line interchange.
According to the utility model discloses an embodiment still includes the discharge resistance, the discharge resistance with lighting apparatus connects in parallel
According to an embodiment of the present invention, the discharge resistor is connected in series or in parallel of a plurality of resistors.
According to the utility model discloses an embodiment still includes filter capacitor, filter capacitor with lighting apparatus connects in parallel.
The utility model provides a noninductive type illumination drive circuit system, adopt two energy storage electric capacity of first electric capacity and second electric capacity to maintain lighting apparatus's stable work, alternating current power supply firstly through the rectifier diode rectification then for energy storage electric capacity charges, the power supply through alternating current power supply and energy storage electric capacity last charge-discharge can provide continuous lightening voltage for lighting apparatus, this system simple structure, and not include the inductive element, the cost is lower, and less size has, the application and the installation of this system are also comparatively simple and convenient.
Drawings
Fig. 1 is a circuit diagram of a non-inductive lighting driving circuit system according to a first embodiment;
FIG. 2 is an equivalent circuit diagram of the energy storage capacitor and the lighting device according to the first embodiment;
fig. 3 is a circuit diagram of a non-inductive lighting driving circuit system according to a second embodiment;
FIG. 4 is a circuit diagram of a third embodiment of the non-inductive lighting driving circuit system;
FIG. 5 is a circuit diagram of a non-inductive lighting driving circuit system according to a fourth embodiment;
fig. 6 is a circuit diagram of a non-inductive lighting driving circuit system according to a fifth embodiment.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example one
As shown in fig. 1, the present embodiment provides a non-inductive lighting driving circuit system, which includes a rectifying diode 10, an energy storage capacitor 20, and a lighting device 30.
In the present embodiment, the rectifier diode 10 includes a first diode D1 and a second diode D2, the anode of the first diode D1 is used for electrically connecting to the live wire of the ac power source, the cathode of the second diode D2 is used for electrically connecting to the live wire of the ac power source, the cathode of the second diode D2 is electrically connected to the ground wire, and the ac power source is typically commercial power or industrial power.
In terms of safety, the non-inductive lighting driving circuit system further comprises an overcurrent protection device F1, the anode of the first diode D1 and the cathode of the second diode D2 are both electrically connected with the live wire of the alternating current power supply through the overcurrent protection device F1, the overcurrent protection device F1 can comprise a fuse (a fuse), a self-recovery fuse, a fusing resistor, a circuit breaker and the like, the overcurrent protection device F1 is usually connected in series in the circuit, the resistance is small, when the circuit works normally, the circuit is just equivalent to a broken lead, the circuit can be stably conducted for a long time, the overcurrent protection device F1 should also be able to withstand a range of overloads in the event of current fluctuations due to power supply or external disturbances, only when a large overload current (fault or short circuit) occurs in the circuit, if the fuse is operated, the safety of the circuit is protected by disconnecting the current, so that the danger of burning the product is avoided.
In this embodiment, the lighting device 30 is an L ED lamp, the L ED lamp is a surface mounted device (smd) L ED lamp bead, a plug-in soldered L ED lamp bead, an integrated COB (Chip On Board L light) L ED module or an L ED filament lamp strip, and the L ED lamp is one or more than one L ED lamp, which can convert electric energy into visible light, has the advantages of small volume, low power consumption, long service life, high brightness, low heat, environmental protection, firmness and durability, and can be widely applied to the production and life of the people.
Optionally, the capacitance of the first capacitor C1 is the same as the capacitance of the second capacitor C2, where the calculated capacitances of the first capacitor C1 and the second capacitor C2 are calculated capacitances of ideal components, the capacitance in an actual application circuit has an upper error and a lower error, and the capacitances within a standard tolerance range should be regarded as the same capacitance. The first capacitor C1 is an electrolytic capacitor or a thin film capacitor, and the second capacitor C2 is also an electrolytic capacitor or a thin film capacitor, or a capacitor made of other materials or specifications.
In this embodiment, Vf is the voltage on the lighting device 30, Vin is the voltage of the ac power source, and Vin is the operating voltage of the lighting device 30
I.e. the voltage of the lighting device may be
And
any value in between.
The specific working principle of the non-inductive lighting driving circuit system comprises the following steps: when the input alternating current is the first positive cycle of a sine wave, the state of the circuit is
The lighting device 30 cannot function properly; when the input alternating current is in the first negative cycle of the sine wave, the alternating current power supply charges the second capacitor C2, and the lighting equipment cannot work normally; when the AC power is applied to the lighting device 30 during the second cycle of the sine wave, the discharge voltage is applied to the lighting device 30 from the second capacitor C2, and the maximum peak voltage across the lighting device is reached
The lighting device 30 starts to operate normally. In the subsequent working process, due to the continuous charging and discharging of the first capacitor C1 and the second capacitor C2, the continuous lighting voltage can be provided for the lighting device.
In this embodiment, in addition to providing a constant lighting voltage to the lighting device, the first capacitor C1 and the second capacitor C2 may also adjust the operating current of the lighting device by setting the capacitance of the first capacitor C1 and the capacitance of the second capacitor C2, and the capacitance of the first capacitor C1 and the capacitance of the second capacitor C2 are in direct proportion to the value of the current flowing through the lighting device, so that the lighting device operates in a relatively stable operating state.
As shown in fig. 2, an equivalent circuit diagram of the energy storage capacitor 20 and the lighting device 30 in fig. 1 is shown, wherein the first capacitor C1 and the second capacitor C2 are equivalent to a dc power source, and the lighting device is equivalent to a zener diode ZD 1. Since the first capacitor C1 and the second capacitor C2 operate under the direct voltage rectified from the alternating current, and the frequency of the alternating current is represented by f, and the frequency of the first capacitor C1 and the frequency of the second capacitor C2 are easily represented by C, the operating frequency of the first capacitor C1 and the operating frequency of the second capacitor C2 are 2 f, and the capacitive reactance formed by connecting the first capacitor C1 and the second capacitor C2 in series
Then the power of the equivalent dc source flows through the first capacitor C1 and the second capacitor C2
The power value is the value of the current flowing through the lighting device, and accordingly, the magnitude of the operating current flowing through the lighting device can be adjusted according to the capacity of the first capacitor C1 and the second capacitor C2, so that the lighting device can operate in a relatively stable state.
Example two
As shown in fig. 3, in this embodiment, the non-inductive lighting driving circuit system further includes a protection diode 40, where the protection diode 40 includes a third diode D3 and a fourth diode D4, the third diode D3 is connected in parallel with the first capacitor C1, an anode of the third diode D3 is electrically connected to a neutral line of an ac power source, a cathode of the third diode D3 is electrically connected to a cathode of the first diode D1, the fourth diode D4 is connected in parallel with the second capacitor C2, an anode of the fourth diode D4 is electrically connected to a ground line, a cathode of the fourth diode D4 is electrically connected to the neutral line, and the third diode D3 and the fourth diode D4 respectively protect the first capacitor C1 and the second capacitor C2, thereby improving reliability of the circuit.
EXAMPLE III
As shown in fig. 4, in this embodiment, the non-inductive lighting driving circuit system further includes a discharge resistor R1, the discharge resistor R1 is connected in parallel with the lighting device, that is, connected in parallel with the energy storage capacitor 20, and is equivalently connected to two ends of the first capacitor C1 and the second capacitor C2, and the discharge resistor R1 plays a role of discharging the first capacitor C1 and the second capacitor C2, so as to ensure that the voltages on the first capacitor C1 and the second capacitor C2 are discharged after power failure, thereby improving the safety and reliability of the circuit. Further, the discharge resistor R1 is a series-parallel connection of a plurality of resistors, that is, the number of discharge resistors R1 may be 1, or a combination of a plurality of resistors connected in series, in parallel, and in series-parallel.
Example four
As shown in fig. 5, in this embodiment, the non-inductive lighting driving circuit system further includes a filter capacitor C3, the filter capacitor C3 is connected in parallel with the lighting device 30, the main function of the filter capacitor C3 includes filtering the voltage and current at two ends of the lighting device 30, reducing ripple current of the lighting device, improving safety and reliability of the circuit, and reducing stroboflash of the lighting device, the number of the filter capacitors C3 may be 1, or may be a plurality of capacitors connected in series and parallel, and the filter capacitor C3 may be not only an electrolytic capacitor, but also capacitors made of other materials or types.
EXAMPLE five
As shown in fig. 6, in this embodiment, the non-inductive lighting driving circuit system includes the protection diode 40, the discharge resistor R1 and the filter capacitor C3, so as to improve the safety and reliability of the circuit and reduce the stroboscopic effect of the lighting device.
Of course, it can be understood that those skilled in the art can combine any two of the technical means in the second embodiment, the third embodiment and the fourth embodiment to form different technical solutions, and the purpose of maintaining stable operation of the lighting device through two capacitors is also achieved, and no inductive element is used, which is also within the protection scope of the present invention.
The utility model provides a noninductive type illumination drive circuit system, adopt two energy storage electric capacity of first electric capacity and second electric capacity to maintain lighting apparatus's stable work, alternating current power supply firstly through the rectifier diode rectification then for energy storage electric capacity charges, the power supply through alternating current power supply and energy storage electric capacity last charge-discharge can provide continuous lightening voltage for lighting apparatus, this system simple structure, and not include the inductive element, the cost is lower, and less size has, the application and the installation of this system are also comparatively simple and convenient.
The embodiments of the present invention are only used for illustration, and do not limit the scope of the claims, and other substantially equivalent alternatives that may be conceived by those skilled in the art are within the scope of the present invention.
Claims (11)
1. A non-inductive lighting driver circuit system, comprising:
the rectifier diode comprises a first diode and a second diode, wherein the anode of the first diode is electrically connected with the live wire of the alternating current power supply, the cathode of the second diode is electrically connected with the live wire of the alternating current power supply, and the cathode of the second diode is electrically connected with the ground wire;
the energy storage capacitor comprises a first capacitor and a second capacitor, one end of the first capacitor is electrically connected with the cathode of the first diode, the other end of the first capacitor is used for electrically connecting a zero line of an alternating current power supply, one end of the second capacitor is used for electrically connecting the zero line of the alternating current power supply, and the other end of the second capacitor is used for connecting a ground wire;
and the anode of the lighting device is electrically connected with the cathode of the first diode, and the cathode of the lighting device is electrically connected with the grounding wire.
2. The non-inductive lighting driving circuit system according to claim 1, further comprising an overcurrent protection device, wherein the anode of the first diode and the cathode of the second diode are both electrically connected to the live line of the ac power source via the overcurrent protection device.
3. The noninductive lighting driving circuit system according to claim 1, wherein the lighting device is an L ED lamp, the L ED lamp is a surface mounted SMD L ED lamp bead, a plug-in soldered L ED lamp bead, an integrated COB L ED module or a L ED filament lamp strip, and the number of the L ED lamps is one or more.
4. The non-inductive lighting driving circuit system according to claim 1, wherein a capacitance capacity of the first capacitor is the same as a capacitance capacity of the second capacitor.
5. The non-inductive lighting driving circuit system according to claim 1 or 4, wherein the first capacitor is an electrolytic capacitor or a thin film capacitor; the second capacitor is an electrolytic capacitor or a thin film capacitor.
6. The non-inductive lighting driving circuit according to claim 1, wherein the voltage across the lighting device is Vf, the voltage of the ac power source is Vin, and the operating voltage of the lighting device is Vin
7. The driving circuit system for non-inductive lighting according to claim 1, further comprising a protection diode, wherein the protection diode comprises a third diode and a fourth diode, the third diode is connected in parallel with the first capacitor, an anode of the third diode is electrically connected to a zero line of an ac power source, a cathode of the third diode is electrically connected to a cathode of the first diode, the fourth diode is connected in parallel with the second capacitor, an anode of the fourth diode is electrically connected to a ground line, and a cathode of the fourth diode is electrically connected to the zero line.
8. The non-inductive lighting driving circuit system according to claim 1, wherein the line and neutral conductors of the ac power source are interchanged.
9. The non-inductive lighting driving circuitry according to claim 1, further comprising a discharge resistor connected in parallel with the lighting device.
10. The non-inductive lighting driving circuit system according to claim 9, wherein the discharge resistor is a series-parallel connection of a plurality of resistors.
11. The non-inductive lighting driving circuitry according to claim 1, further comprising a filter capacitor connected in parallel with the lighting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921343474.0U CN211047299U (en) | 2019-08-19 | 2019-08-19 | Non-inductive lighting driving circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921343474.0U CN211047299U (en) | 2019-08-19 | 2019-08-19 | Non-inductive lighting driving circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211047299U true CN211047299U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921343474.0U Active CN211047299U (en) | 2019-08-19 | 2019-08-19 | Non-inductive lighting driving circuit system |
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| Country | Link |
|---|---|
| CN (1) | CN211047299U (en) |
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- 2019-08-19 CN CN201921343474.0U patent/CN211047299U/en active Active
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