CN219199259U - Digital pulse ignition circuit and burner - Google Patents
Digital pulse ignition circuit and burner Download PDFInfo
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- CN219199259U CN219199259U CN202223424161.2U CN202223424161U CN219199259U CN 219199259 U CN219199259 U CN 219199259U CN 202223424161 U CN202223424161 U CN 202223424161U CN 219199259 U CN219199259 U CN 219199259U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model discloses a digital pulse ignition circuit, which comprises a power supply control circuit, an ignition control circuit, a self-oscillation boosting circuit, a high-voltage packet primary circuit, a control module, a trigger circuit and a voltage acquisition circuit, wherein the control module outputs an effective Igni signal to control the ignition control circuit to increase the output power of the self-oscillation boosting circuit, so that the charging of an energy storage capacitor is accelerated, the energy storage capacitor can be charged to a preset trigger voltage in an ignition period, the consistency of ignition frequency can be ensured, the charging voltage of the energy storage capacitor is fed back in real time through the voltage acquisition circuit, and when the energy storage capacitor is charged to the preset trigger voltage, the control module outputs an effective Trig signal to control the trigger circuit to discharge the energy storage capacitor, and the consistency of the trigger voltage can be ensured.
Description
Technical Field
The utility model relates to the technical field of ignition, in particular to a digital pulse ignition circuit and a burner.
Background
Igniters of existing burners typically employ analog control circuits to control ignition. Taking a gas water heater as an example, as shown in fig. 1, a pulse ignition control circuit on the gas water heater comprises a self-oscillation boosting circuit, a trigger module and an ignition module, wherein the self-oscillation boosting circuit comprises triodes Q1 and Q2, a transformer T1, a diode D1 and resistors R1 and R2; the ignition module comprises an energy storage capacitor C1 and a transformer T2.
The self-oscillation boosting circuit works in the following way: at the moment of power supply, no current flows through the current limiting resistor R1, the feedback winding of the transformer T1 is equivalent to short circuit, the base voltage of the triode Q1 is zero, so that the triode Q1 is saturated and conducted, the power supply voltage is loaded on the primary winding of the transformer T1, the feedback voltage is induced on the feedback winding of the transformer T1 according to the turn ratio, the feedback voltage is superposed on the base voltage of the triode Q1 to promote the base current of the triode Q1 to be increased, meanwhile, the secondary voltage is also induced on the secondary winding of the transformer T1, and the secondary voltage is a negative voltage due to the relationship of the homonymous end positions. Under the effect of the inductance of the primary winding of the transformer T1, the collector current of the triode Q1 is linearly increased, the conduction voltage drop between the emitter and the collector of the triode Q1 is increased along with the continuous increase of the collector current of the triode Q1, the voltage applied to the primary winding of the transformer T1 is reduced along with the continuous decrease of the voltage, the base current of the triode Q1 is finally forced to transition from a saturated conduction state to an amplified state and finally to a cut-off state, the voltage applied to the primary winding of the transformer T1 is reduced to zero volt and commutates to a negative voltage along with the cut-off of the triode Q1, the base current of the triode Q1 is commutated immediately, meanwhile, the secondary voltage is also changed from negative to positive, the energy stored on the primary winding of the transformer T1 during the conduction period of the triode Q1 is released, the voltage of the secondary winding of the transformer T1 is reflected to the feedback winding in the process of energy conversion, the reverse cut-off voltage of the triode Q1 is enhanced, the reflected voltage is also correspondingly forced to transition from the saturated conduction state to the amplified state, the grid Q1 is switched on again, the current is switched on again, and the base of the triode Q1 is commutated again in a new period. As long as the power supply is continued, the oscillation state of the booster circuit is continued.
When the ignition is not performed, the triode Q2 is cut off, the base current of the triode Q1 is controlled by the current limiting resistor R1, the current is smaller, the peak value of the collector current of the triode Q1 is smaller, the conduction time of each cycle of triode Q1 is shorter, the oscillation frequency of the booster circuit is higher, the oscillation frequency can reach 20kHz, the loss is larger, the output power of the booster circuit is smaller, and the booster circuit is only used by a fire detection circuit. As can be seen from fig. 1, the ac output formed at the same-name end of the secondary winding of the transformer T1 is attenuated by the resistor R3 and the capacitor C2 and then sent to the flame sensing needle for flame detection. The direction of arrow 100 shown in fig. 1 is the current flow direction when the self-oscillation boost circuit charges the energy storage capacitor C1, when in ignition, the triode Q2 is conducted, the base current of the triode Q1 is simultaneously controlled by the resistor R1 and the resistor R2, the current is larger, the peak value of the collector current of the triode Q1 is larger, the conduction time of each cycle of the triode Q1 is longer, the oscillation frequency of the boost circuit is lower, about 2kHz, the loss is relatively smaller, the output power of the boost circuit is larger, the energy storage capacitor C1 can be charged to the trigger voltage within 10ms, then the trigger module can be automatically conducted, the energy storage capacitor C1 rapidly releases charges, a high-voltage discharge arc is formed through the transformer T2, and the direction of arrow 200 shown in fig. 1 is the current flow direction when the energy storage capacitor C1 discharges.
However, because the element parameters of the analog circuit are easily affected by the ambient temperature to generate deviation, for example, common deviation of the inductance of the primary winding of the transformer T1 is ±15%, and the actual output power of the boost circuit of each burner is difficult to ensure uniformity due to the deviation of the element parameters, the uniformity of the charging speed of the storage capacitor C1 for charging to the trigger voltage is also difficult to ensure, thereby causing inconsistent ignition frequency of each burner, and the problem of precision of the element selected by the trigger module also causes inconsistent actual trigger voltage. Therefore, for the burner with the same ignition control circuit, the ignition performance can be different, and a part of the burner can be quickly and successfully ignited at one time, and a part of the burner needs to be triggered for many times to successfully ignite, so that the outgoing qualification rate of the burner is affected.
Disclosure of Invention
The utility model aims to provide a digital pulse ignition circuit and a burner, which can improve the consistency of ignition performance of the burner.
To achieve the object, in a first aspect, the utility model provides a digital pulse ignition circuit, which comprises a power supply control circuit, an ignition control circuit, a self-oscillation boosting circuit, a high-voltage packet primary circuit, a control module, a trigger circuit and a voltage acquisition circuit;
the high-voltage package primary circuit comprises an energy storage capacitor and an ignition transformer, wherein the energy storage capacitor is connected with a primary winding of the ignition transformer, and a secondary winding of the ignition transformer is used for being connected with an ignition needle;
the first output end of the control module is connected with the controlled end of the power supply control circuit and is used for outputting a Powe signal, the input end of the power supply control circuit is connected with a power supply, the output end of the power supply control circuit is connected with the voltage input end of the self-oscillation boosting circuit, and the self-oscillation boosting circuit is powered on through the power supply control circuit when the Powe signal is effective so as to charge the energy storage capacitor;
the second output end of the control module is connected with the controlled end of the ignition control circuit and is used for outputting an Igni signal, the output end of the ignition control circuit is connected with the controlled end of the self-oscillation boosting circuit, and when the Igni signal is effective, the output power of the self-oscillation boosting circuit is increased through the ignition control circuit, so that the charging of the energy storage capacitor is accelerated;
the output end of the trigger circuit is connected with the high-voltage packet primary circuit, the third output end of the control module is connected with the controlled end of the trigger circuit and is used for outputting a Trig signal, and the trigger circuit is controlled to discharge the energy storage capacitor when the Trig signal is effective;
the voltage acquisition circuit is connected with the high-voltage package primary circuit and is used for acquiring the charging voltage of the energy storage capacitor and feeding back the charging voltage to the control module, the feedback input end of the control module is connected with the voltage acquisition circuit, and the control module is further used for outputting an effective Trig signal after receiving an ignition request and when the charging voltage of the energy storage capacitor is greater than or equal to a preset trigger voltage.
Further, after receiving the ignition request, if the charging voltage of the energy storage capacitor is greater than or equal to the preset trigger voltage, the first discharging is started, and the discharging process is as follows: the control module outputs an invalid Powe signal with a first preset duration to enable the self-oscillation boosting circuit to cut off a power supply through the power supply control circuit, outputs an effective Trig signal with the first preset duration to enable the trigger circuit to discharge the energy storage capacitor, simultaneously outputs an invalid Igni signal with a second preset duration, outputs the effective Powe signal and the invalid Trig signal after the first preset duration, and outputs an effective Igni signal after the second preset duration to enable the self-oscillation boosting circuit to accelerate charging of the energy storage capacitor until the charging voltage of the energy storage capacitor reaches the preset trigger voltage, and starts discharging for the second time and outputs the invalid Igni signal.
Further, the second preset time period is longer than the first preset time period.
Further, the second preset duration is equal to the first preset duration.
Further, after receiving the ignition request, if the charging voltage of the energy storage capacitor is smaller than the preset trigger voltage, the control module outputs an invalid Trig signal, and outputs an effective Powe signal and an effective Igni signal so that the self-oscillation boosting circuit accelerates the charging of the energy storage capacitor until the charging voltage of the energy storage capacitor reaches the preset trigger voltage, and then starts to discharge for the first time.
Further, the first preset duration is 1ms.
Further, in the standby mode, the control module is configured to output an effective Powe signal to enable the self-oscillation boost circuit to be powered on through the power supply circuit, and output an ineffective Igni signal and an ineffective Trig signal to control the ignition control circuit to be turned off and the trigger module to be turned off, respectively.
Further, the control module is also used for uploading the charging voltage of the energy storage capacitor acquired by the voltage acquisition circuit to the display for display.
Further, the trigger circuit is a unidirectional silicon controlled trigger circuit.
The utility model also provides a burner comprising the digital pulse ignition circuit.
The utility model has the beneficial effects that: in the digital pulse ignition circuit, the control module is used for outputting an effective Igni signal to control the ignition control circuit to increase the output power of the self-oscillation boosting circuit, so that the charging of the energy storage capacitor is accelerated, the energy storage capacitor can be charged to a preset trigger voltage in one ignition period, the consistency of ignition frequency can be ensured, the charging voltage of the energy storage capacitor is fed back in real time through the voltage acquisition circuit, when the charging voltage of the energy storage capacitor reaches the preset trigger voltage, the control module outputs an effective Trig signal to control the trigger circuit to discharge the energy storage capacitor, thereby ensuring the consistency of the trigger voltage.
Drawings
FIG. 1 is a schematic diagram of a prior art pulse ignition control circuit;
FIG. 2 is a schematic diagram of a digital pulse ignition circuit according to an embodiment of the present utility model;
FIG. 3 is a timing diagram of the digital pulse ignition circuit according to the embodiment of the present utility model;
FIG. 4 is another operational timing diagram of a digital pulse ignition circuit according to an embodiment of the present utility model;
fig. 5 is a further operational timing diagram of the digital pulse ignition circuit according to the embodiment of the present utility model.
Reference numerals:
the device comprises a 101 power supply control circuit, a 102 ignition control circuit, a 103 self-oscillation boosting circuit, a 104 high-voltage package primary circuit, a 105 control module, a 106 trigger circuit and a 107 voltage acquisition circuit.
Detailed Description
The present utility model will be described in detail with reference to specific examples.
The digital pulse ignition circuit can be applied to gas burners such as gas water heaters and gas stoves.
Referring to fig. 2, an embodiment of the present utility model provides a digital pulse ignition circuit, which includes a power supply control circuit 101, an ignition control circuit 102, a self-oscillation boost circuit 103, a high-voltage packet primary circuit 104, a control module 105, a trigger circuit 106, and a voltage acquisition circuit 107.
The high-voltage primary circuit 104 comprises an energy storage capacitor and an ignition transformer, wherein the energy storage capacitor is connected with a primary winding of the ignition transformer, and a secondary winding of the ignition transformer is used for being connected with an ignition needle.
The trigger circuit 106 may be a unidirectional thyristor trigger circuit.
The first output end of the control module 105 is connected with the controlled end of the power supply control circuit 101 and is used for outputting a Powe signal, the input end of the power supply control circuit 101 is connected with a power supply, the output end of the power supply control circuit 101 is connected with the voltage input end of the self-oscillation boosting circuit 103, and the self-oscillation boosting circuit 103 is powered on through the power supply control circuit 101 when the Powe signal is valid; wherein the power supply control circuit 101 cuts off the power supply when the Powe signal is inactive, and the self-oscillation boosting circuit 103 cuts off the power supply. The self-oscillation boosting circuit 103 charges the energy storage capacitor when the power supply is turned on by the power supply control circuit 101.
The second output end of the control module 105 is connected with the controlled end of the ignition control circuit 102, and is used for outputting an Igni signal, and when the Igni signal is valid, the output power of the self-oscillation boosting circuit 103 is increased through the ignition control circuit 102, so that the charging of the energy storage capacitor is accelerated; wherein ignition control circuit 102 is turned off when the Igni signal is inactive.
The output end of the trigger circuit 106 is connected with the high-voltage packet primary circuit 104, the third output end of the control module 105 is connected with the controlled end of the trigger circuit 106, and is used for outputting a Trig signal, and when the Trig signal is valid, the trigger circuit 106 is controlled to discharge the energy storage capacitor.
The voltage acquisition circuit 107 is connected with the high-voltage packet primary circuit 104, and is configured to acquire a charging voltage of the energy storage capacitor and feed back the charging voltage to the control module 105, a feedback input end of the control module 105 is connected with the voltage acquisition circuit 107, and the control module 105 is further configured to output an effective Trig signal after receiving an ignition request and when the charging voltage of the energy storage capacitor reaches a preset trigger voltage.
Therefore, in the embodiment of the present utility model, the control module 105 outputs an effective Igni signal to control the ignition control circuit 102 to increase the output power of the self-oscillation boost circuit 103, so as to accelerate the charging of the energy storage capacitor, so that the energy storage capacitor can be charged to a preset trigger voltage in one ignition period, the consistency of the ignition frequency can be ensured, and the voltage acquisition circuit 107 feeds back the charging voltage of the energy storage capacitor in real time, when the charging voltage of the energy storage capacitor reaches the preset trigger voltage, the control module 105 outputs an effective Trig signal to control the trigger circuit 106 to discharge the energy storage capacitor, thereby ensuring the consistency of the trigger voltage.
The power supply control circuit 101 and the ignition control circuit 102 may be implemented by using transistors, or may be implemented by using other switching transistors such as MOS transistors, for example, the ignition control circuit 102 may be implemented by using a transistor Q2 shown in fig. 1, where the Igni signal includes a high level and a low level, where the high level is an active signal, and the low level is an inactive signal, so that when the Igni signal is an active signal of the high level, the ignition control circuit 102 is turned on, and when the Igni signal is an inactive signal of the low level, the ignition control circuit 102 is turned off. The self-oscillation step-up circuit 103 can be implemented by, for example, a step-up circuit composed of a transistor Q1, current limiting resistors R1 and R2, and a transformer T1 as shown in fig. 1. The power supply control circuit 101 is connected between the emitter of the triode Q1 and the power supply, the power supply control circuit 101 is turned on when the Powe signal is an effective signal, so that the self-oscillation boosting circuit 103 is turned on, and the power supply control circuit 101 is turned off when the Powe signal is an ineffective signal, so that the self-oscillation boosting circuit 103 is turned off. Of course, the self-oscillation boosting circuit 103 may be a boosting circuit of another configuration, and may be capable of realizing a self-oscillation boosting function.
When the power supply control circuit 101 is powered on and the Igni signal is effective, the output power of the self-oscillation boosting circuit 103 is greatly increased, and an ac signal is output, and then the energy storage capacitor is charged through the rectifier diode. The voltage acquisition circuit 107 is configured to monitor the voltage of the energy storage capacitor, and may be implemented by using two voltage dividing resistors, and feedback the charging voltage of the energy storage capacitor by acquiring the voltage dividing value.
Taking a gas water heater as an example, in a standby mode of the gas water heater, the control module 105 is configured to output an effective Powe signal to enable the self-oscillation booster circuit 103 to be powered on by the power supply control circuit 101, and output an ineffective Igni signal and Trig signal to control the ignition control circuit 102 to be turned off and the trigger module 106 to be turned off, respectively. At this time, the output power of the self-oscillation booster circuit 103 is small, and the charging voltage of the energy storage capacitor in the high-voltage package primary circuit 104 after dynamic balance is small. The control module 105 is further configured to obtain a voltage value of the energy storage capacitor fed back by the voltage acquisition circuit 107, and upload the voltage value to the display for display.
Referring to fig. 3, when the electric control board of the gas water heater detects a water flow signal and recognizes an effective ignition request, the control module 105 receives the ignition request, and then the control module 105 compares a charging voltage Volt of the energy storage capacitor fed back by the voltage acquisition module 107 with a preset trigger voltage Vt, and if the charging voltage Volt of the energy storage capacitor is greater than or equal to the preset trigger voltage Vt, the first discharging is started, and the specific discharging process is as follows: the control module 105 outputs an invalid Powe signal with a first preset duration t1 to enable the self-oscillation boosting circuit 103 to cut off a power supply through the power supply control circuit 102, and outputs an valid Trig signal with a first preset duration to enable the trigger circuit 106 to discharge the energy storage capacitor, so that a first discharge arc is triggered, and after the energy storage capacitor is discharged, the silicon controlled rectifier of the trigger circuit 106 is automatically cut off. At the same time, the control module 105 outputs an invalid Igni signal for a second preset time period t2.
After the first preset time period t1, the control module 105 outputs a valid Powe signal and an invalid Trig signal, so that the self-oscillation boosting circuit 103 is powered on to charge the energy storage capacitor slowly, and after the second preset time period t2, that is, when a new ignition period arrives, the control module 105 outputs a valid Igni signal, so that the output power of the self-oscillation boosting circuit 103 is increased, and the charging of the energy storage capacitor is accelerated, until the charging voltage Volt of the energy storage capacitor reaches the preset trigger voltage Vt, the control module 105 starts to discharge for the second time, then waits for the current ignition period to end, continuously outputs the invalid Igni signal, and the waiting period accounts for the ignition period to be not more than 20%. When the last ignition cycle is over, the control module 105 will turn on the next ignition cycle if the ignition request is still in progress.
The ignition control circuit 102 is controlled by outputting an active Igni signal, so that the output power of the self-oscillation boosting circuit 103 is increased to accelerate the charging speed of the energy storage capacitor, thereby ensuring that the energy storage capacitor can be charged to a preset trigger voltage Vt in an ignition period.
The second preset duration t2 is longer than the first preset duration t1, that is, the second preset duration is longer in one ignition period, and accordingly the valid duration of the Igni signal is shorter. In other embodiments, as shown in fig. 5, if the required charging time for charging the energy storage capacitor to the preset trigger voltage is greater than the preset ignition period, the second preset duration t2 may be equal to the first preset duration t1, that is, the second preset duration is shorter in one ignition period, and accordingly, the duration for which the Igni signal is valid is longer, so that the duration for which the self-oscillation boosting circuit 103 charges the energy storage capacitor faster in one ignition period is increased, thereby ensuring that the energy storage capacitor can be charged to the preset trigger voltage Vt in one acceptable ignition period.
As shown in fig. 4, after receiving the ignition request, if the charging voltage of the energy storage capacitor is smaller than the preset trigger voltage, the control module 105 outputs an ineffective Trig signal, and outputs an effective Powe signal and an effective Igni signal to make the self-oscillation boosting circuit 103 accelerate charging of the energy storage capacitor until the charging voltage Volt of the energy storage capacitor reaches the preset trigger voltage vt, and then starts to discharge for the first time. The control module 105 repeats the above process for the next ignition cycle to form the next discharge arc.
Therefore, in the embodiment of the utility model, the ignition frequency is precisely controlled by the preset ignition period duration, and the deviation can be less than 2%. Even if the circuit is abnormal, the actual ignition period is larger than the preset ignition period, the ignition circuit can ensure that the discharging process is executed when the voltage of the energy storage capacitor reaches the preset trigger voltage value, ensure the consistency of parameters of each discharging, and avoid that the output voltage is not high enough to form an arc. The preset ignition period can be executed according to an enterprise standard, namely, the preset ignition period can be set by a manufacturer according to actual needs, the acceptable ignition period can be executed according to national or industry standards, obviously, the enterprise standard is stricter, and the duration of the corresponding ignition period is shorter. In addition, since the control module 105 performs the trigger discharge immediately after the storage capacitor is charged to the preset trigger voltage value in each ignition period, the deviation of the trigger voltage may be less than 2%. Therefore, through the digital pulse ignition circuit, the deviation of the ignition frequency and the trigger voltage is smaller, and the consistency of the ignition performance is improved.
For the ignition control circuit shown in fig. 1, if the ignition frequency is found to be out of range by the production line workers during actual production, the ignition frequency is often adjusted by replacing the current limiting resistor R2, so that the production efficiency is reduced, and a certain hidden danger is brought. For example, in order to ensure that the minimum ignition frequency meets the enterprise standard during production, a production line worker tends to use a smaller current limiting resistor R2, and the production test environment is different from the actual use environment of a user, so that the possibility of high output power of the self-oscillation booster circuit exists during actual use, and adverse phenomena such as magnetic saturation of a transformer T1, overheat of a triode Q1, non-cut-off of a unidirectional thyristor and the like can be possibly caused. The ignition circuit does not need to artificially modify the production operation of circuit parameters, so that the production efficiency can be improved, and the potential safety hazard can be reduced.
In addition, by using the trigger circuit 106 of the unidirectional silicon controlled rectifier, the components are more universal and cheaper, which is beneficial to reduce the cost.
For the ignition control circuit shown in fig. 1, during actual production, if a production line worker takes a measuring tool such as a universal meter to detect the voltage of the energy storage capacitor, the production efficiency is greatly affected, if no detection is performed, whether the fire detection sensitivity of the detected product is enough cannot be ensured, and once the product with low fire detection sensitivity flows into the market, the possibility that the fire cannot be detected by the user home exists because the production test environment is different from the actual use environment of the user. In the utility model, the voltage of the energy storage capacitor acquired by the voltage acquisition circuit 107 is uploaded to the display for display through the control module 105, so that a production line worker can instantly acquire the actual voltage of the energy storage capacitor, and then judge whether the current limiting resistor R1 needs to be finely adjusted according to the existing operation instruction, the alternating current signal output by the self-oscillation boosting circuit can fall in a reasonable range, the consistency of flame detection sensitivity can be improved, the probability that a product with low fire detection sensitivity flows into the market can be greatly reduced, the voltage of the energy storage capacitor does not need to be manually measured, and the production efficiency can be improved.
The embodiment of the utility model also provides a burner, which comprises the digital pulse ignition circuit described in any embodiment.
The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.
Claims (4)
1. The digital pulse ignition circuit is characterized by comprising a power supply control circuit, an ignition control circuit, a self-oscillation boosting circuit, a high-voltage packet primary circuit, a control module, a trigger circuit and a voltage acquisition circuit;
the high-voltage package primary circuit comprises an energy storage capacitor and an ignition transformer, wherein the energy storage capacitor is connected with a primary winding of the ignition transformer, and a secondary winding of the ignition transformer is used for being connected with an ignition needle;
the first output end of the control module is connected with the controlled end of the power supply control circuit and is used for outputting a Powe signal, the input end of the power supply control circuit is connected with a power supply, the output end of the power supply control circuit is connected with the voltage input end of the self-oscillation boosting circuit, and the self-oscillation boosting circuit is powered on through the power supply control circuit when the Powe signal is effective so as to charge the energy storage capacitor;
the second output end of the control module is connected with the controlled end of the ignition control circuit and is used for outputting an Igni signal, the output end of the ignition control circuit is connected with the controlled end of the self-oscillation boosting circuit, and when the Igni signal is effective, the output power of the self-oscillation boosting circuit is increased through the ignition control circuit, so that the charging of the energy storage capacitor is accelerated;
the output end of the trigger circuit is connected with the high-voltage packet primary circuit, the third output end of the control module is connected with the controlled end of the trigger circuit and is used for outputting a Trig signal, and the trigger circuit is controlled to discharge the energy storage capacitor when the Trig signal is effective;
the voltage acquisition circuit is connected with the high-voltage package primary circuit and is used for acquiring the charging voltage of the energy storage capacitor and feeding back the charging voltage to the control module, the feedback input end of the control module is connected with the voltage acquisition circuit, and the control module is further used for outputting an effective Trig signal after receiving an ignition request and when the charging voltage of the energy storage capacitor is greater than or equal to a preset trigger voltage.
2. The digital pulse ignition circuit of claim 1, wherein the control module is further configured to upload the charging voltage of the energy storage capacitor acquired by the voltage acquisition circuit to the display for display.
3. The digital pulse ignition circuit of claim 1 wherein the trigger circuit is a unidirectional thyristor trigger circuit.
4. A burner comprising a digital pulse ignition circuit as claimed in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223424161.2U CN219199259U (en) | 2022-12-16 | 2022-12-16 | Digital pulse ignition circuit and burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223424161.2U CN219199259U (en) | 2022-12-16 | 2022-12-16 | Digital pulse ignition circuit and burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219199259U true CN219199259U (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223424161.2U Active CN219199259U (en) | 2022-12-16 | 2022-12-16 | Digital pulse ignition circuit and burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219199259U (en) |
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- 2022-12-16 CN CN202223424161.2U patent/CN219199259U/en active Active
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