CN210899723U - Glow starting and pre-burning circuit - Google Patents
Glow starting and pre-burning circuit Download PDFInfo
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- CN210899723U CN210899723U CN201921387485.9U CN201921387485U CN210899723U CN 210899723 U CN210899723 U CN 210899723U CN 201921387485 U CN201921387485 U CN 201921387485U CN 210899723 U CN210899723 U CN 210899723U
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Abstract
The utility model provides a glow starting and pre-burning circuit, which comprises a glow starting and pre-burning generator, a resistor, a diode and an electric appliance; the starting and pre-burning generator comprises a first secondary coil used for generating starting voltage and a second secondary coil used for generating pre-burning voltage, and the first secondary coil, the resistor and the electric appliance are sequentially connected in series to form a starting branch circuit; the second secondary coil, the diode and the electric appliance are sequentially connected in series to form a pre-burning branch. The starting and pre-burning circuit effectively solves the problem that the starting and pre-burning circuit in the prior art is complex in structure, and is simple in structure, stable in performance and lower in cost.
Description
Technical Field
The utility model relates to a circuit structure especially relates to a start burning circuit in advance.
Background
Ignition and pre-burning circuits are widely used in the market, for example, gas discharge lamps need to use the ignition and pre-burning circuits.
As shown in fig. 1, the conventional ignition and pre-ignition circuit is composed of five modules, namely, an ignition voltage generator 11, a pre-ignition voltage generator 12, a gas discharge lamp 13, an ignition feedback circuit 14 and a controller 15. The starting voltage generator 11 includes a transformer and a voltage doubling circuit, and the starting voltage generator 11 is an AC power input and a high voltage output for generating a ten thousand volt high voltage to cause the gas discharge lamp 13 to perform glow discharge. After the glow discharge succeeds, the controller 15 is informed of the success of the glow discharge through the glow starting feedback circuit 14, the controller 15 controls the pre-burning voltage generator 12 to work, a pre-burning voltage of about 200 volts is generated, and the glow starting voltage generator 11 is disconnected.
The existing starting and pre-burning circuit is provided with two voltage generators, namely a starting voltage generator 11 and a pre-burning voltage generator 12, wherein the two voltage generators respectively need an independent transformer; meanwhile, the conventional glow starting and pre-burning circuit needs a glow starting feedback circuit 14 and a controller 15, the glow starting feedback circuit 14 transmits the information of successful glow discharge to the controller 15 in the form of an electric signal, and then the controller 15 drives the pre-burning voltage generator 12 to work and stops the operation of the glow starting voltage generator 11. The existing starting and pre-burning circuit has the defect of complex structure due to the plurality of the component modules.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is how to simplify current starting precombustion circuit structure.
In order to solve the above technical problem, in a first aspect, the present invention provides a glow starting and pre-burning method, including: the glow starting branch is communicated, the glow starting voltage of the glow starting and pre-burning generator acts on the electric appliance, and the electric appliance performs glow discharge; the pre-burning branch is communicated, the pre-burning voltage of the glow starting and pre-burning generator acts on the electric appliance, and the electric appliance automatically transits to a pre-burning state from glow discharge.
Preferably, the glow starting branch is communicated, a glow starting voltage of the glow starting and pre-burning generator acts on an electrical appliance, and the glow discharge of the electrical appliance specifically comprises: the first secondary coil of the starting and pre-burning generator, the resistor and the electric appliance are sequentially connected in series to form the starting branch, the starting branch is communicated, the first secondary coil of the starting and pre-burning generator generates a starting voltage, the starting voltage acts on the electric appliance, and the electric appliance performs glow discharge.
Preferably, the pre-burning branch is communicated, a pre-burning voltage of the glow starting and pre-burning generator acts on the electric appliance, and the automatic transition of the electric appliance from glow discharge to the pre-burning state specifically comprises: the second secondary coil of the glow starting and pre-burning generator, the diode and the electric appliance are sequentially connected in series to form a pre-burning branch, the pre-burning branch is communicated, the second secondary coil of the glow starting and pre-burning generator generates pre-burning voltage, the pre-burning voltage of the glow starting and pre-burning generator acts on the electric appliance, and the electric appliance automatically transits from glow discharge to a pre-burning state.
Preferably, the electrical appliance is a gas discharge lamp.
Preferably, the resistance value of the resistor is 100-1000 ohms.
Preferably, the gas discharge lamp is grounded.
Preferably, the starting voltage is not less than 10000V.
Preferably, the pre-ignition voltage is not less than 200V.
In a second aspect, the present invention provides a glow starting and pre-burning circuit, which includes a glow starting and pre-burning generator, a resistor, a diode, and an electrical appliance; the starting and pre-burning generator comprises a first secondary coil used for generating a starting voltage and a second secondary coil used for generating a pre-burning voltage, wherein the first secondary coil, the resistor and the electric appliance are sequentially connected in series to form a starting branch circuit; the second secondary coil, the diode and the electric appliance are sequentially connected in series to form a pre-burning branch.
Preferably, the electrical appliance is a gas discharge lamp.
Preferably, the resistance value of the resistor is 100-1000 ohms.
Preferably, the gas discharge lamp is grounded.
Preferably, the starting voltage is not less than 10000V.
Preferably, the pre-ignition voltage is not less than 200V.
The starting and pre-burning method and the circuit only need a starting and pre-burning generator, a resistor and a diode, do not need a starting feedback circuit and a controller, simplify the structure of the starting and pre-burning circuit in the prior art, and also enable the starting and pre-burning circuit to be more stable; the automatic transition of the starting and pre-burning states is realized by a pure hardware circuit without using controller code control, so that the starting and pre-burning method and the circuit are more stable; the generation of the starting voltage and the pre-burning voltage are integrated into one transformer to realize the starting and the pre-burning voltage, and the circuit structure is simplified again. In summary, the glow starting and pre-burning method and circuit described in this embodiment effectively solve the problem that the glow starting and pre-burning circuit in the prior art is complex in structure, so that the glow starting and pre-burning circuit is simple in structure, stable in performance, smaller in product size, and lower in cost.
Drawings
The drawings illustrate, by way of example, the invention and do not limit the invention. Like reference numerals refer to like elements.
FIG. 1 is a schematic diagram of a prior art ignition and pre-ignition circuit;
FIG. 2 is a schematic flow chart of a method for starting and pre-burning provided in this embodiment;
FIG. 3 is a schematic structural diagram of a glow starting and pre-burning circuit provided in this embodiment;
FIG. 4 is a schematic structural diagram of a glow starting and pre-burning method or circuit glow starting process provided in the present embodiment;
fig. 5 is a schematic structural diagram of a glow starting and pre-burning method or a circuit pre-burning process provided in this embodiment.
Detailed Description
The disclosure may best be understood by reference to the detailed drawings and description set forth herein.
Example one
Fig. 2 is a schematic flow chart of a glow starting and pre-burning method according to an embodiment of the present invention, fig. 3 is a schematic structural diagram of a glow starting and pre-burning circuit according to this embodiment, as shown in fig. 2 and 3, the method includes:
step 110: the glow starting branch is communicated, the glow starting voltage of the glow starting pre-burning generator 21 acts on the electric appliance, and the electric appliance performs glow discharge;
further, as shown in fig. 3, the step 110 specifically includes: the first secondary coil 211 of the starting and pre-burning generator 21, the resistor R1 and the electrical appliance are sequentially connected in series to form the starting branch, the starting branch is communicated, the first secondary coil 211 of the starting and pre-burning generator generates a starting voltage Ua, the starting voltage Ua acts on the electrical appliance, and the electrical appliance performs glow discharge.
Step 120: the precombustion branch is communicated, and the precombustion voltage Ub of the starting precombustion generator 21 acts on the electric appliance, and the electric appliance automatically transits to a precombustion state from glow discharge.
Further, the step 120 specifically includes: the second secondary coil 212 of the ignition and pre-combustion generator 21, the diode D1 and the electric appliance are sequentially connected in series to form a pre-combustion branch, the pre-combustion branch is communicated, the second secondary coil 212 of the ignition and pre-combustion generator generates pre-combustion voltage Ub, the pre-combustion voltage Ub of the ignition and pre-combustion generator 21 acts on the electric appliance, and the electric appliance automatically transits from glow discharge to a pre-combustion state.
Further, the electrical appliance is a gas discharge lamp 22.
Furthermore, the resistor R is a large resistor, and the resistance R1 is 100-1000 ohms.
Further, the gas discharge lamp 22 is grounded.
Further, the starting voltage Ua is not less than 10000V.
Further, the pre-burning voltage Ub is not less than 200V.
The operation principle of the starting and pre-burning method described in this embodiment is as follows:
glow starting process (step 110):
the direction of the current of the glow discharge is shown by the arrow in fig. 4, and when a starting and pre-burning method according to the embodiment starts, there are two independent power supplies, namely, a first secondary coil 211 for generating the starting voltage and a second secondary coil 212 for generating the pre-burning voltage, but since the reaction time of the diode D1 exceeds the resistance R, the starting branch a is analyzed first. Due to the resistance R of the gas discharge lamp 22 when not ignitedLCorresponding to infinity, i.e. RL= ∞; resistance R of the gas discharge lamp 22 according to the superposition theorem and the ohm theoremLDividing voltage with resistor R, resistance of resistor R is R1, voltage U generated by starting voltage Ua at point LLaComprises the following steps:
ULa=Ua*RL/(R1+RL)≈Ua
because of Ua>Ub; so UL>Ub, then the diode D1 is not conducted, and the pre-ignition voltage Ub falls on the voltage U of the gas discharge lamp 22Lb=0。
According to the superposition theorem, UL=ULa+ULb≈Ua+0≈Ua。
Therefore, the voltage U at the point LLApproximately equal to the starting voltage Ua, typically a high voltage of ten thousand volts, the gas discharge lamp 22 succeeds in glow discharge.
Precombustion process (step 120):
the current profile during the pre-ignition process is shown by the arrows in fig. 5, and after the successful glow discharge of the gas discharge lamp 22, the resistance R of the gas discharge lamp 22LRapidly decreasing to the milliohm level, i.e. R L0 is approximately distributed; at this time, the voltage U generated by the starting voltage Ua at the gas discharge lamp 22LaComprises the following steps:
ULa=Ua*RL/(R1+RL)≈0；
at this time Ub>ULWhen the diode D1 is turned on, the voltage on the diode D1 is Ud1，ULa=Ub-Ud1=Ub-0.7V; since the pre-ignition voltage Ub is typically above 200V, the voltage U generated by the pre-ignition voltage Ub at the gas discharge lamp 22 isLb≈Ub。
According to the superposition theorem, UL=ULa+ULb≈Ub；
Therefore, the voltage U at the point LLApproximately equal to the pre-ignition voltage Ub, the gas discharge lamp 22 automatically transitions from a glow discharge to a pre-ignition state.
In summary, the ignition and pre-burning method described in this embodiment only requires the ignition and pre-burning generator 22, the resistor R and the diode D1, and does not require an ignition feedback circuit and a controller, and the gas discharge lamp 22 can automatically transit from the glow discharge to the pre-burning state. The structure of the starting and pre-burning circuit in the prior art is simplified, and the starting and pre-burning circuit is simpler and more stable; the automatic transition of the starting and pre-burning states is realized by a pure hardware circuit without using controller code control, so that the starting and pre-burning circuit is simpler and more stable; the generation of the starting voltage and the pre-burning voltage are integrated into one transformer to realize the starting and the pre-burning voltage, and the circuit structure is simplified again. In conclusion, the starting and pre-burning method provided by the embodiment effectively solves the problem that the starting and pre-burning circuit in the prior art is complex in structure, so that the starting and pre-burning circuit is simple in structure, stable in performance, smaller in product volume and lower in cost.
Example two
As shown in fig. 3, the ignition and pre-combustion circuit of the present embodiment includes an ignition and pre-combustion generator 21, a resistor R, a diode D1 and an electric appliance; the starting and pre-burning generator 21 comprises a first secondary coil 211 for generating a starting voltage and a second secondary coil 212 for generating a pre-burning voltage, wherein the first secondary coil 211, the resistor R and the electric appliance are sequentially connected in series to form a starting branch a; the second secondary coil 212, the diode D1 and the electrical appliance are connected in series in sequence to form a pre-burning branch b.
Further, the electrical appliance is a gas discharge lamp 22.
Furthermore, the resistor R is a large resistor, and the resistance R1 is 100-1000 ohms.
Further, the gas discharge lamp is grounded.
Further, the starting voltage is not less than 10000V.
Further, the pre-burning voltage is not less than 200V.
The operation principle of the ignition and pre-combustion circuit described in this embodiment is as follows:
and (3) starting:
the direction of the glow discharge current is shown by the arrows in fig. 4, and when a starting and pre-burning circuit according to the embodiment starts to operate, there are two independent power supplies, namely, a first secondary coil 211 for generating a starting voltage and a second secondary coil 212 for generating a pre-burning voltage, but since the response time of the diode D1 exceeds the resistance R, the starting branch a is analyzed first. Due to the resistance R of the gas discharge lamp 22 when not ignitedLCorresponding to infinity, i.e. RL= ∞; resistance R of the gas discharge lamp 22 according to the superposition theorem and the ohm theoremLDividing voltage with resistor R, resistance of resistor R is R1, and starting voltage Ua is at LVoltage U generated by a pointLaComprises the following steps:
ULa=Ua*RL/(R1+RL)≈Ua
because of Ua>Ub; so UL>Ub, then the diode D1 is not conducted, and the pre-ignition voltage Ub falls on the voltage U of the gas discharge lamp 22Lb=0。
According to the superposition theorem, UL=ULa+ULb≈Ua+0≈Ua。
Therefore, the voltage U at the point LLApproximately equal to the starting voltage Ua, typically a high voltage of ten thousand volts, the gas discharge lamp 22 succeeds in glow discharge.
Pre-burning process:
the current profile during the pre-ignition process is shown by the arrows in fig. 5, and after the successful glow discharge of the gas discharge lamp 22, the resistance R of the gas discharge lamp 22LRapidly decreasing to the milliohm level, i.e. R L0 is approximately distributed; at this time, the voltage U generated by the starting voltage Ua at the gas discharge lamp 22LaComprises the following steps:
ULa=Ua*RL/(R1+RL)≈0；
at this time Ub>ULWhen the diode D1 is turned on, the voltage on the diode D1 is Ud1，ULa=Ub-Ud1=Ub-0.7V; since the pre-ignition voltage Ub is typically above 200V, the voltage U generated by the pre-ignition voltage Ub at the gas discharge lamp 22 isLb≈Ub。
According to the superposition theorem, UL=ULa+ULb≈Ub；
Therefore, the voltage U at the point LLApproximately equal to the pre-ignition voltage Ub, the gas discharge lamp 22 automatically transitions from a glow discharge to a pre-ignition state.
In summary, the ignition and pre-ignition circuit described in this embodiment only needs the ignition and pre-ignition generator 22, the resistor R, and the diode D1, and does not need the ignition feedback circuit and the controller, thereby simplifying the structure of the ignition and pre-ignition circuit in the prior art, and making the ignition and pre-ignition circuit described in this embodiment more stable; the automatic transition of the starting and pre-burning states is realized by a pure hardware circuit without using controller code control, so that the starting and pre-burning circuit is more stable; the generation of the starting voltage and the pre-burning voltage are integrated into one transformer to realize the starting and the pre-burning voltage, and the circuit structure is simplified again. In conclusion, the starting and pre-burning circuit provided by the embodiment effectively solves the problem that the starting and pre-burning circuit in the prior art is complex in structure, so that the starting and pre-burning circuit is simple in structure, stable in performance, smaller in product volume and lower in cost.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be termed a second element, and, similarly, a second element may be termed a first element, without departing from the scope of example embodiments.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.
The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the method of the present invention, and such modifications and additions are also considered to be within the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.
Claims (6)
1. The starting and pre-burning circuit is characterized by comprising a starting and pre-burning generator, a resistor, a diode and an electric appliance; the starting and pre-burning generator comprises a first secondary coil used for generating a starting voltage and a second secondary coil used for generating a pre-burning voltage, wherein the first secondary coil, the resistor and the electric appliance are sequentially connected in series to form a starting branch circuit; the second secondary coil, the diode and the electric appliance are sequentially connected in series to form a pre-burning branch.
2. The ignition and ignition circuit of claim 1, wherein the electrical device is a gas discharge lamp.
3. The ignition and pre-combustion circuit as claimed in claim 1, wherein the resistance of the resistor is 100-1000 ohms.
4. The ignition and ignition circuit of claim 2, wherein the gas discharge lamp is grounded.
5. The ignition and pre-combustion circuit as claimed in claim 1, wherein the ignition voltage is not less than 10000V.
6. The ignition and pre-ignition circuit of claim 1, wherein the pre-ignition voltage is not less than 200V.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921387485.9U CN210899723U (en) | 2019-08-26 | 2019-08-26 | Glow starting and pre-burning circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921387485.9U CN210899723U (en) | 2019-08-26 | 2019-08-26 | Glow starting and pre-burning circuit |
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| CN210899723U true CN210899723U (en) | 2020-06-30 |
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| CN201921387485.9U Active CN210899723U (en) | 2019-08-26 | 2019-08-26 | Glow starting and pre-burning circuit |
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