CN207188003U - High-voltage power circuit and high-tension electricity source plate - Google Patents
High-voltage power circuit and high-tension electricity source plate Download PDFInfo
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- CN207188003U CN207188003U CN201721291866.8U CN201721291866U CN207188003U CN 207188003 U CN207188003 U CN 207188003U CN 201721291866 U CN201721291866 U CN 201721291866U CN 207188003 U CN207188003 U CN 207188003U
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Abstract
This application provides a kind of high-voltage power circuit and high-tension electricity source plate, high-voltage power circuit includes：Booster circuit, detection means and control device.Wherein, booster circuit has control signal, voltage input end and voltage output end, for booster circuit for being high direct voltage voltage by the voltage conversion inputted by voltage input end and being exported from voltage output end by high direct voltage voltage, booster circuit can provide the output voltage of at least two ranks；The voltage change for the reflection spark phenomenon that detection means is used to detect on voltage output end；Control device is used to adjust the rank of the voltage output of booster circuit according to the number for detecting the spark phenomenon of generation in the unit interval.The high-tension electricity source plate that the application provides reduces the yield of the ozone of electrostatic dust collection equipment, while is also prevented from lasting sparking occur, and reduces the decibel and frequency of sparking arcing noise, extends the service life of power panel.
Description
Technical field
A kind of high-tension electricity source plate of high-voltage power circuit is the utility model is related to, is mainly used in electrostatic dust collection equipment.
Background technology
The principle of electrostatic dust collection equipment is to utilize the dust in high voltage electric field separation bubble, therefore used in electrostatic dust collection equipment
Power panel have input voltage be converted into the functional circuit of high pressure, to provide institute to the high voltage electric field of electrostatic dust collection equipment
The high voltage needed.
Electrostatic precipitation is to produce corona discharge using High Level DC Voltage, and cation and anion are produced after making air ionization,
Anion is combined with the grit in air, during by ion chamber with high voltage electric field, it is possible that spark phenomenon, such as occurs big
Particle or ion carton deformed, lasting sparking phenomenon of arc discharge just occurs, thus shorten the life-span of power panel, while influence electrostatic
The performance of cleaner, the scheme that the application provides improve this problem at least in part.
Utility model content
To solve existing technical problem, according to the first aspect of the application, there is provided a kind of high voltage power supply control circuit.
The high-voltage power circuit includes：
Booster circuit, the booster circuit have control signal, voltage input end and voltage output end, the boosting
Circuit be used for will the voltage conversion that be inputted by the voltage input end for high direct voltage voltage and from the voltage output end by institute
The output of high direct voltage voltage is stated, the booster circuit can provide the output voltage of at least two ranks；
Detection means, for detecting the voltage change on the voltage output end；
Control device, the voltage output of the booster circuit is adjusted for the situation according to the voltage change detected
Rank.
High-voltage power circuit as described above, the rank of the output voltage of the regulation booster circuit refer to boost
The rank rise of the output voltage of circuit, reduce or remain unchanged.
High-voltage power circuit as described above,
The voltage output end connects with load；
The voltage change refers to the mutation of output voltage；
The mutation of the output voltage includes the voltage jump when being struck sparks in the load.
High-voltage power circuit as described above, the detection means include：Observation circuit and voltage change detection circuit,
The input of the observation circuit is connected with the voltage output end, for monitoring the electricity of the voltage output end
Pressure, the voltage of the output end of the observation circuit reflect the voltage change of the voltage output end,
The voltage that the voltage change detection circuit is used to detect observation circuit passes through compared with preset reference value
The output end output voltage change indication signal of the voltage change detection circuit；
Control device includes pulse-width modulation circuit, multistage reference voltage circuit, voltage comparator circuit and control circuit,
The output end of the pulse-width modulation circuit is connected with the control signal of the booster circuit, for controlling boosting electricity
In the rank of the output voltage of the voltage output end, the pulse-width modulation circuit has first input end on road,
The output end of the multistage reference voltage circuit can provide the reference voltage of at least two ranks；
The voltage comparator circuit is used for the output by the voltage of the output end of observation circuit and multistage reference voltage circuit
The voltage at end is compared, and produces voltage adjustment indication signal, and the output end of the voltage comparator circuit is by the electricity
Pressure adjustment indication signal is output to the first input end of the pulse-width modulation circuit, for being adjusted by the pulse-width modulation circuit
The output voltage rank of booster circuit；
The voltage change indication signal that the control circuit is used for the output of receiving voltage change detecting circuit produces base
Quasi- voltage level signal, the control circuit have the first output end, and the control circuit is from first output end to described
Multistage reference voltage circuit exports the reference voltage level signal, for adjusting the benchmark electricity of the multistage reference voltage circuit
The rank of pressure.
High-voltage power circuit as described above, the pulse-width modulation circuit have the second input；
The control circuit has the second output end, and second output end is used for the second input to pulse-width modulation circuit
End output high-tension circuit make-and-break signal, for controlling the disconnection of booster circuit.
High-voltage power circuit as described above, it is described to be used to control the output of booster circuit to refer to temporarily disconnect booster circuit
Output after certain time recover export.
High-voltage power circuit as described above, the preset reference value are ground voltage.
High-voltage power circuit as described above, the mutation of the voltage change indication signal reflection output voltage, the control
Circuit processed produces reference voltage level signal according to the number of the voltage change indication signal received in the unit interval, and is supplied to
The multistage reference voltage circuit, so as to realize the regulation liter by adjusting the reference voltage rank of multistage reference voltage circuit
The output voltage rank of the output end of volt circuit.
High-voltage power circuit as described above, the multistage reference voltage circuit include power resistor, the multistage benchmark
Potential circuit adjusts the multistage benchmark by adjusting the resistance for the power resistor for accessing the multistage reference voltage circuit circuit
The rank of voltage.
High-voltage power circuit as described above, the multistage reference voltage circuit include triode, and the triode is used for
Regulation accesses the resistance of the power resistor of multistage reference voltage circuit circuit.
High-voltage power circuit as described above, the voltage change detection circuit include voltage change comparator, the electricity
Buckling comparator has first input end and the second input, and the first input end is connected with observation circuit, and described second
Input end grounding.
High-voltage power circuit as described above, the voltage comparator circuit include voltage adjustment comparator, and the voltage is adjusted
Whole comparator has first input end and the second input, and the first input end is connected with observation circuit, second input
End is connected with the multistage reference voltage circuit.
According to the second aspect of the application, there is provided a kind of high-tension electricity source plate, the high-tension electricity source plate include as described above
High-voltage power circuit, the high-tension electricity source plate are used for electrostatic dust collection equipment.
The high voltage power supply control circuit that the application provides mainly solves the ozone during electrostatic dust collection equipment is persistently struck sparks
Concentration is lifted and noise problem.When detecting that sparking situation occurs in first time, high-tension electricity source plate control circuit can control
High voltage power supply temporarily powers off, and then recovers High voltage output, occurs spark phenomenon twice in certain time if detected, sentences
Break frequently to strike sparks, reduce output voltage rank, when frequent sparking disappears, boosted output voltages rank can also be taken the circumstances into consideration.This
The high voltage power supply control circuit and high-tension electricity source plate for electrostatic dust collection equipment that application provides reduce to a certain extent
The yield of ozone, while it is also prevented from lasting sparking occur, and the decibel and frequency of sparking arcing noise are reduced, extend and use
Life-span.
Brief description of the drawings
These and other feature and advantage of the present utility model can read described further below obtain more by referring to accompanying drawing
Understand well, in whole accompanying drawing, identical reference represents identical part, wherein：
Fig. 1 is the module diagram of the application high-voltage power circuit；
Fig. 2A is the circuit diagram of one embodiment of the application high-voltage power circuit；
Fig. 2 B are the circuit diagram of one embodiment of the application observation circuit；
Fig. 2 C are the circuit diagram of one embodiment that the application voltage change detects circuit；
Fig. 2 D are the circuit diagram of one embodiment of the application multistage reference voltage circuit；
Fig. 2 E are the circuit diagram of one embodiment of the application voltage comparator circuit；
Fig. 2 F are the circuit diagram of one embodiment of the application booster circuit；
Fig. 3 is a module diagram of the application control circuit；
Fig. 4 is the schematic diagram of the one embodiment for the method that the application controls high tension voltage output；
Fig. 5 is the schematic diagram of another embodiment of the method that the application controls high tension voltage output.
Embodiment
Various embodiments of the present utility model are carried out below with reference to the accompanying drawing for forming this specification part
Description.Although it should be understood that in the utility model using represent direction term, such as "front", "rear", " on ",
" under ", "left", "right", etc. direction or directionality description various example features of the present utility model and element, but
This uses the purpose of these terms merely for convenience of description, is determined based on the example orientations shown in accompanying drawing, and " the
One " " the second " is only ordinal number, and having " first " not represent has " second ".Because embodiment disclosed in the utility model can be with
Set according to different directions, so these represent that the term in direction is intended only as illustrating and should not be considered as limiting.Following
Accompanying drawing in, same parts use same drawing number, and similar parts use similar drawing number, to avoid repeating
Description.
Fig. 1 is the module diagram of the application high-voltage power circuit.As shown in figure 1, high-voltage power circuit includes boosting electricity
Road 101, detection means 180 and control device 181.Wherein booster circuit 101 has voltage input end 131 and voltage output end
132, voltage output end 132 connects with load, the voltage of the voltage reflection load of voltage output end 132.Booster circuit 101 can carry
For the voltage output of at least two ranks.High-voltage power circuit shown in Fig. 1 is mainly used in detecting voltage by detection means 180
Voltage change situation in output end 132, and the voltage output on voltage output end 132 is adjusted by control device 181
Rank.Voltage change on voltage output end 132 may be caused by many reasons, in one embodiment of the application, high pressure
The power panel applied to electrostatic dust collection equipment of power circuit, when the power panel work of electrostatic dust collection equipment, voltage is caused to become
A kind of reason changed is that (spark phenomenon refers to when charged particle enters high voltage electric field and is adsorbed onto the moment of high tabletting spark phenomenon
Produce the phenomenon of spark flashover and crack).Fig. 1 is discussed in detail with the example of the voltage change caused by spark phenomenon below
Shown high-voltage power circuit.
Detection means 180 is connected with the voltage output end 132 of booster circuit, for detecting the voltage output end 132
Spark phenomenon.Control device 181 is connected with detection means 180 and booster circuit 101 respectively, when detecting unit for basis
The interior number struck sparks judges current working condition, so as to adjust the rank of the voltage output of booster circuit 101.
Detection means 180 has observation circuit 105 and voltage change detection circuit 107.
Wherein the input 154 of observation circuit 105 is connected with the voltage output end 132 of booster circuit 101, is risen for monitoring
The voltage of the voltage output end 132 of volt circuit 101, the voltage reflection of the output end 156 of observation circuit 105 and voltage output end
The voltage change of the load of 132 connections.Observation circuit 105 turns to the high voltage of the voltage output end 132 of booster circuit 101
Change, export relatively low voltage, for being matched with voltage change detection circuit 107 and voltage comparator circuit 121.Observation circuit 105
Voltage on the voltage and load of output has identical variation tendency.
Voltage change detection circuit 107 receives two input signals, voltage that respectively observation circuit 105 detects and pre-
If a reference value, wherein preset reference value is ground voltage.The electricity that voltage change detection circuit 107 detects observation circuit 105
After pressure is compared with preset reference value, voltage change indication signal is produced, and the output end of circuit 107 is detected from voltage change
137 output voltages change indication signal.Spark phenomenon in the reflection load of voltage change indication signal, when being struck sparks in load
When, the voltage on voltage output end 132 is undergone mutation, and is down to 0 or close to 0, then the voltage that observation circuit 105 detects is 0
Or close to 0, voltage that now voltage change detection circuit 107 detects observation circuit 105 and ground connection relatively after, produce simultaneously defeated
Go out to reflect the voltage change indication signal of spark phenomenon.That is, when the voltage on voltage output end 132 is undergone mutation,
The output voltage of the output end 137 change indication signal of voltage change detection circuit 107, the voltage on voltage output end 132 do not have
When undergoing mutation, the output end 137 of voltage change detection circuit 107 is unable to output voltage change indication signal, often exports one
Secondary voltage change indication signal, represent to occur once to strike sparks in load.
Control device 181 includes pulse-width modulation circuit 120, multistage reference voltage circuit 123, the He of voltage comparator circuit 121
Control circuit 109.
Wherein control circuit 109 has the first output end 191 and input 193.The input 193 of control circuit 109 with
The output end connection of voltage change detection circuit 107, and the voltage change provided according to voltage change detection circuit 107 indicates
Signal produces reference voltage level signal and reference voltage level signal is transported into multistage reference voltage circuit 123, so as to adjust
The multistage reference voltage rank of reference voltage circuit 123 is saved, then is adjusted by voltage comparator circuit 107 and pulse-width modulation circuit 120
Save the output voltage of booster circuit 101.Wherein control circuit 109 by reference voltage level signal from control circuit 109 first
Output end 191 is output to multistage reference voltage circuit 123, so as to adjust the reference voltage of the multistage reference voltage circuit 123
Rank.
The output 129 of multistage reference voltage circuit 123 provides the reference voltage of at least two ranks, at least two ranks
Reference voltage can be as a reference value of voltage comparator circuit 121.The reference voltage of each rank respectively with booster circuit 101
Each other normal voltage of output voltage level is corresponding.
Voltage comparator circuit 121 receives the voltage of the output end 156 of observation circuit 105 and multistage reference voltage circuit respectively
Output end 129 voltage and be compared, according to result of the comparison produce voltage adjustment indication signal, and by voltage ratio compared with
Voltage adjustment indication signal is output to pulse-width modulation circuit by the output end 141 of circuit 121, so as to adjust the pulsewidth modulation electricity
The output on road 120, and then adjust the output voltage rank of booster circuit 101.Specifically, when the output 156 of observation circuit 105
When voltage is higher than the reference voltage of the output 129 of multistage reference voltage circuit, illustrate that the voltage in load is higher than current output
The output of the normal voltage of voltage level, then voltage adjustment indication signal control pulse-width modulation circuit 120 reduction booster circuit 101
Voltage.Similarly, when the voltage of the output end 156 of observation circuit 105 is less than the electricity of the output end 129 of multistage reference voltage circuit
During pressure, illustrate that the voltage in load is less than the current other normal voltage of output voltage level, then voltage adjustment indication signal is used for
Pulse-width modulation circuit 120 is controlled to raise the output voltage of booster circuit 101.
When output voltage needs to change rank, the reference voltage of the output end 129 of multistage reference voltage circuit changes, then
Voltage adjustment indication signal is used for the output voltage for adjusting booster circuit 101 caused by voltage comparator circuit 121, makes booster circuit
101 output voltage changes to the other normal voltage of output voltage level corresponding with current base voltage level.Work as observation circuit
When the reference voltage of the output end 129 of the voltage multistage reference voltage circuit of 105 output end 156 is identical, illustrate booster circuit
101 output voltage has reached the other normal voltage of corresponding output voltage level, realizes the electricity of the output voltage of booster circuit 101
Arbitrarily downgrade other adjustment.
Pulse-width modulation circuit 120 has first input end 145 and output end 143.Pulse-width modulation circuit 120 is defeated by first
Enter voltage adjustment indication signal caused by 145 receiving voltage comparison circuits 121 of end, and indication signal is adjusted to boosting according to voltage
Circuit 101 is controlled.The output end 143 of pulse-width modulation circuit 120 is connected with the control signal 133 of booster circuit 101, so as to
Pulse-width modulation circuit 120 controls booster circuit 101 in the output voltage of voltage output end 132 by adjusting the dutycycle of pulse
Be raised and lowered.
In one embodiment of the application, control circuit 109 also has the second input 192, pulse-width modulation circuit 120
Also there is the second input 146.Wherein the second input of the input 192 of control circuit 109 second and pulse-width modulation circuit 120
146 connections, high-tension circuit make-and-break signal can be exported to the second input 146 of pulse-width modulation circuit 120, so as to cut off boosting
The input voltage of circuit 101.Wherein high-tension circuit make-and-break signal can temporarily cease signal, in one embodiment of the application
In, control circuit exports the input electricity of high-tension circuit make-and-break signal temporarily disconnected booster circuit 101 by the first output end 191
Pressure, and recover within the defined time, booster circuit 101 is continued to output the voltage of the appropriate level before disconnecting.Temporarily cut
The input voltage of disconnected booster circuit 101 can prevent circuit spark phenomenon last for short from the damage to caused by high-voltage power circuit occurs
Evil.
The pulsewidth that is superior to that second input 146 of pulse-width modulation circuit 120 receives high-tension circuit make-and-break signal is adjusted
The voltage adjustment indication signal of the first input end 145 of circuit 120 processed, leads to when pulse-width modulation circuit 120 receives high-tension circuit
During break signal, then the operation of the input voltage of cut-out booster circuit 101 is performed, and it is signified no longer to perform voltage adjustment indication signal
Show the action that output voltage is raised and lowered.So as to avoid when load is struck sparks, the comparison of voltage comparator circuit 121
As a result to the influence of whole circuit.
In one embodiment of the application, voltage comparator circuit 121 persistently keeps work when high-voltage power circuit connects
Make, when output voltage stabilization is in specific rank, when Occurrence level does not change (such as not striking sparks), multistage reference voltage circuit
Output end 129 voltage it is constant, and the voltage of the output end 156 of observation circuit 105 may produce because of the running situation of circuit
Raw fluctuation, then voltage adjustment indication signal is used for the operating voltage pulsation of adjustment circuit caused by voltage comparator circuit 121, makes
The output of booster circuit 101 is more stable.
Fig. 2A is the circuit diagram of one embodiment of the application high-voltage power circuit, shows high-voltage power circuit
Concrete structure.As shown in Figure 2 A, high-voltage power circuit includes observation circuit 105, booster circuit 101, voltage change detection circuit
107th, multipole reference voltage circuit 123, voltage comparator circuit 121, pulse-width modulation circuit 120 and control circuit 109, and and Fig. 1
In each circuit module correspond.Fig. 2 B- Fig. 2 F are the enlarged drawing of each circuit module in Fig. 2A, below with reference to Fig. 2A and figure
2B- Fig. 2 F introduce each circuit module respectively.
Fig. 2 B are the schematic diagrames of the embodiment of an observation circuit in the application, are divided as illustrated, observation circuit 105 has
Piezoresistance R220 and computing comparator 230, input 154 and the load of observation circuit 105 are connected, entered by divider resistance R220
Enter computing comparator 230, then exported after being handled by computing comparator 230, divider resistance R220 shares the height electricity of a back loading
With relatively low control source computing comparator 230 after pressure, computing comparator 230 exports after handling again voltage signal, fortune
It is relatively low to calculate the voltage that comparator 230 exports, detects circuit 107 with voltage change and voltage comparator circuit 121 matches, while energy
The relative height of voltage in enough reflection loads.
Fig. 2 C are the schematic diagrames of the embodiment of a voltage change detection circuit in the application, as illustrated, voltage change
Detection circuit 107 has voltage change comparator 240, and voltage change comparator 240 inputs with first input end 171, second
End 172 and output end 137, wherein first input end 171 is connected with the output end of observation circuit 105, for receiving observation circuit
105 voltages measured, the second input 172 are grounded.The voltage that voltage change comparator 240 measures observation circuit 105 is with connecing
The voltage on ground is compared, so as to produce voltage change indication signal.When spark phenomenon occurs for the load that output end 132 is connected
When, voltage can instantaneously decrease up to 0 or close to 0, and the voltage of first input end 171 is also 0 or close to 0 therewith, and now voltage becomes
Change comparator 240 by the voltage of first input end 171 compared with ground voltage, generation voltage change indication signal, and pass through
Voltage change indication signal is delivered to control circuit 109 by output end 137.Produce primary voltage change indication signal and represent output
Voltage is once mutated, that is, represents once to be struck sparks in load.When load is not struck sparks, then input
171 voltage will not undergo mutation, then the no longer output voltage of voltage change comparator 240 changes indication signal in this case,
That is voltage change indication signal only produces in sparking.
Fig. 2 D are the schematic diagrames of the embodiment of a multistage reference voltage circuit in the application, in this embodiment, can
To provide the reference voltage of three ranks, in other embodiments, two ranks or three ranks can also be set according to demand
Reference voltage above.Multistage reference voltage circuit 123 has output end 129, the first control terminal 205 and the second control terminal
206, wherein output end 129 is connected with voltage comparator circuit 121, for providing normal voltage first to voltage comparator circuit 121
The control terminal 206 of control terminal 205 and second is connected with the output end 191 of control circuit 109, for receiving control circuit 109
The control signal sent.Also there is multistage reference voltage circuit 123 a power supply VCC, power supply VCC to provide fixed standard electric
Pressure, resistance R213 is set between power supply VCC and output end 129, the first end 231 of resistance 213 is connected with power supply VCC, the
Two ends 232 are connected with output end 129, so as to the output resistance R213 of output end 129 and the voltage at the tie point of output 129.
Divider resistance R211 and triode are provided between the first control terminal 205 and resistance R213 the second end 232
221, divider resistance R212 and triode 222 are provided between the second control terminal 206 and resistance R213 the second end 232, is controlled
Circuit 109 processed can control triode by the low and high level for the output for adjusting the first control terminal 205 and the second control terminal 206
221 and the break-make of triode 222, so as to control the resistance of the divider resistance in access multipole reference voltage circuit 123, so as to
Adjust the output voltage of output end 129.In one embodiment of the application, the emitting stage ground connection of triode 221, base stage is with controlling
Circuit connection processed, colelctor electrode are connected with divider resistance 211, and divider resistance R211 one end connects with resistance R213 the second end 232
Connect, the other end is connected with the colelctor electrode of triode 211.Similarly, the emitting stage ground connection of triode 212, base stage and control circuit
Connection, colelctor electrode are connected with divider resistance 212, and divider resistance R212 one end is connected with resistance R213 the second end 232, another
End is connected with the colelctor electrode of triode 211.When control terminal 205 and control terminal 206 export low level, triode 221 and three
Level pipe 222 is turned off, and is not accessed so as to resistance R211 and resistance R212, now resistance R213 voltage at the second end 232 etc.
In voltage VCC voltage, the out-put supply VCC of output end 129 voltage, i.e. first level voltage.When control terminal 205 is high electricity
It is flat, and when control terminal 206 be low level, triode 221 turns on, and triode 222 ends, electric so as to resistance R211 access circuits
Resistance R212 do not access circuit, now power supply VCC voltage for resistance R213 both ends voltage and R211 both ends voltage sum, from
And the voltage at resistance R213 the second end 232 is changed, output end 129 exports second level voltage, wherein second level voltage
Value it is relevant with the proportionate relationship between resistance R211 and R213.It is similar, when control terminal 205 is low level, and control terminal 206
For high level when, triode 222 turns on, and triode 221 ends, and so as to resistance R212 access circuits, resistance R211 do not access electricity
Road, now power supply VCC voltage is the voltage at resistance R213 both ends and the voltage sum at R212 both ends, so as to the of resistance R213
The voltage at two ends 232 is changed, and output end 129 exports third level voltage, the wherein value of third level voltage and resistance R212
It is relevant with resistance R213 proportionate relationship.Therefore, the proportionate relationship between resistance R213 and resistance R211 and R212 is rationally set,
The reference voltage of at least three ranks can be drawn.
The voltage that wherein power supply VCC voltage exports with observation circuit 105 matches, that is to say, that power supply VCC is offer
Relatively low normal voltage, and the voltage of booster circuit output end 132 is high pressure, then observation circuit 105 is by booster circuit output end
132 are converted to relatively low voltage, then are handled again via voltage comparator circuit 121, so as to the voltage provided with power supply VCC
Match, voltage comparator circuit 121 is compared both.
Fig. 2 E are the schematic diagrames of the embodiment of a voltage change comparison circuit, and as shown in Figure 2 E, voltage change is more electric
Road 121 has voltage adjustment comparator 250, the input 262 of first input end 261 and second and output end 141, wherein first is defeated
Enter the voltage that end 261 is used to receive the output of observation circuit 105, the second input 262 is used to receive multistage reference voltage circuit
Reference voltage, the voltage and the reference voltage of the second input 262 that comparator exports observation circuit 105 are compared, if
The voltage that observation circuit 105 exports is less than the reference voltage of the second output end 262, then low level is exported, conversely, then exporting high pressure
Flat, the signal of output is delivered to pulse-width modulation circuit 120 by output end 141, for controlling the voltage liter of booster circuit 101
Drop.
Wherein first input end 261 is used for partial pressure provided with divider resistance R267, and in the first output end 261 and output
Electric capacity C214 and capacitance partial pressure resistance R269 is provided between 141, when circuit is connected, the first output end 261 is entered to electric capacity C214
Row charging, when exporting low level than voltage adjustment comparator 250, export 141 output voltage and provided by electric capacity C214, work as electricity
When pressure adjustment comparator 250 exports high level, the output voltage of output end 141 is provided by high level and the C214 voltage being superimposed.
Fig. 2 F are the schematic diagrames of the embodiment of a booster circuit, and booster circuit has main coil T271 and secondary coil
T272, first boosted with main coil T271 and secondary coil T272, then with one group of diode and electric capacity, realized again
Load is output to after repoussage stream.Wherein apply alternating voltage in main coil T271, then will be produced at secondary coil T272 both ends
Induced electromotive force, wherein the secondary coil T272 number of turn are more than the main coil T271 number of turn, so as to secondary coil T272 induced electricities
Kinetic potential is more taller than the voltage added by primary coil T271, and so as to realize boosting, now secondary coil T272 voltage is still
Alternating current.Then, the rectification using diode and guide function, voltage is stored on respective electric capacity respectively, then it
By polarity be added principle be connected in series, then can export the DC high voltage higher than input voltage.For example, it is in voltage
During positive half cycle, D110 conductings, D111 ends, and electric current is charged by D110 to electric capacity C111, and electric capacity C111 voltage is flowed to and connect
The peak value of nearly secondary coil alternating current is simultaneously held essentially constant, when voltage is negative half period, D111 conductings, and D110 cut-offs, now
C111 voltage is superimposed with supply voltage to charge to C112, then C112 voltage is 2 times of secondary coil alternating current, so as to realize
Multiplication of voltage and rectification, when accessing more electric capacity and diode combinations, multistage multiplication of voltage can be achieved, in the present embodiment, using four
Combination to diode and electric capacity (C111-C114, D110-D113), realize four times of multiplication of voltages and rectification.Booster circuit 101 is final
The direct current of high pressure is exported, for loading.The input of booster circuit 101 is by the control of pulse-width modulation circuit 120, pulsewidth modulation electricity
Road 120 can adjust on-off and boosting and the decompression of booster circuit 101 by adjusting the dutycycle of pulse.
Fig. 3 is the schematic diagram of a control circuit 109, as illustrated, control circuit 109 has processor 304, memory
318th, input unit 308, output device 312.All parts in control circuit 109, including processor 304, input unit 308,
Output device 312 and memory 318 are connected by communication with bus 302 so that processor 304 can control input device 308,
The operation of output device 312 and memory 318.Memory 318 be used for storage program, instruction and data, and processor 304 from
The reading program of memory 318, instruction and data, and data can be write to memory 318.Read by performing memory 318
Program and instruction, processor 304 control the operation of output device 312.
The wherein voltage change signal of the receiving voltage change detecting circuit 107 of input unit 308 output, voltage change letter
The phenomenon of number reflection load sparking, and passes through the data to memory 318 by signal data input store 318, processor 304
Judged, whole circuit is controlled by the output control order of output device 312.
Fig. 4 is the schematic diagram of the one embodiment for the method that the application controls high tension voltage output；As shown in figure 4, the party
Method has steps of：
Step 401：It is highest level by output voltage setting after startup power supply.In the present embodiment, output voltage is pre-
Three ranks are set to, such as in one embodiment, three ranks are 6.4kv, 5.8kv, 5.2kv, wherein from the third level to
One-level reduces successively, and the third level is optimal rank, under the second level and the first order also can normal work, but efficiency is less than the third level.
Step 402：Whether the output end of detection high pressure strikes sparks, if do not struck sparks, keeps current voltage
Output level, if it happens strike sparks, then implementation steps 403 and/or 404.
Step 403：When step 402 detects that sparking occurs, recover after temporary transient disconnecting circuit, keep current voltage level
Not, such as in one embodiment, it is to recover after temporarily disconnecting 10s.Wherein step 403 is optional step, in some embodiments
In, step 403 can also be omitted.Step 403 can prevent from continuing destruction of the sparking to circuit to a certain extent.
Step 404：After step 402, spark phenomenon is judged, according to default decision condition, judged current
Working condition.For example, in one embodiment, when lightering interval twice is less than 10s, it is judged as frequently striking sparks, at 4 hours
It is interior, the sparking more than once does not occur in every 10s, i.e., in 4 hours, does not strike sparks or only strikes sparks once in every 10s, then judge
Disappeared for frequently sparking.
When frequent sparking, step 407 is performed, judges current voltage rank, then will be defeated if the second level or the third level
Going out voltage reduces one-level；If the first order, then judge whether to reach outage condition, if be not reaching to, keep the first order
Voltage output, and step 402 is carried out, if reached, power off.It is optional step to be provided with outage condition, can also be direct
Perform power-off.In one embodiment, outage condition is to be struck sparks more than 10 times in 1 minute.
When frequent sparking disappears, step 408 is performed, judges current voltage rank, then will output electricity if the first order
Pressure elevated by one step simultaneously continues step 402, if the second level or the third level, then keeps the voltage output of current level to go forward side by side
Row step 402.
Fig. 5 is the schematic diagram of another embodiment of the method that the application controls high tension voltage output；As shown in figure 5, side
Method is similar with Fig. 4, step 501,502,503,504,507,508 respectively with step 401,402,403,404,407,408 phases
Together, except that：Voltage level in Fig. 5 can be more than two level or three-level, and：
When frequent sparking, step 507 is performed, current voltage rank is judged, if not least level then by output voltage
Reduce one-level；If lowermost level, then judge whether to reach outage condition, if be not reaching to, keep minimum step voltage defeated
Go out, and carry out step 502, if reached, power off.It is optional step to be provided with outage condition, can also directly be performed disconnected
Electricity.
When frequent sparking disappears, step 508 is performed, judges current voltage rank, then will output if the non-superlative degree
Voltage elevated by one step simultaneously continues step 502, if the superlative degree, then keeps the voltage output of current level and carries out step
402。
Although only some features of the present utility model are shown and described herein, to people in the art
A variety of improvement and change can be carried out for member.It is therefore to be understood that appended claim, which is intended to covering, falls with this reality
With the above-mentioned improvement and change in new spirit.
Claims (13)
1. a kind of high-voltage power circuit, it is characterised in that the high-voltage power circuit includes：
Booster circuit (101), the booster circuit (101) have control signal (133), voltage input end (131) and electricity
Output end (132) is pressed, the booster circuit (101) is used to be straight by the voltage conversion that the voltage input end (131) inputs
Stream high tension voltage simultaneously exports from the voltage output end (132) by the high direct voltage voltage, and the booster circuit (101) can carry
For the output voltage of at least two ranks；
Detection means (180), for detecting the voltage change on the voltage output end (132)；
Control device (181), the voltage of the booster circuit (101) is adjusted for the situation according to the voltage change detected
The rank of output.
2. high-voltage power circuit according to claim 1, it is characterised in that：
The rank of the output voltage of the regulation booster circuit (101) refers to the output voltage of booster circuit (101)
Rank rise, reduce or remain unchanged.
3. high-voltage power circuit according to claim 1, it is characterised in that：
The voltage output end (132) connects with load；
The voltage change refers to the mutation of output voltage；
The mutation of the output voltage includes the voltage jump when being struck sparks in the load.
4. high-voltage power circuit according to claim 1, it is characterised in that：
The detection means (180) includes：Observation circuit (105) and voltage change detection circuit (107),
The input (154) of the observation circuit (105) is connected with the voltage output end (132), for monitoring the voltage
The voltage of output end (132), the voltage of the output end (156) of the observation circuit (105) reflect the voltage output end (132)
Voltage change,
The voltage that voltage change detection circuit (107) is used to detect observation circuit (105) compared with preset reference value,
And output end (137) output voltage that circuit (107) is detected by the voltage change changes indication signal；
Control device (181) includes pulse-width modulation circuit (120), multistage reference voltage circuit (123), voltage comparator circuit
(121) and control circuit (109),
The output end (143) of the pulse-width modulation circuit (120) connects with the control signal (133) of the booster circuit (101)
Connect, for controlling booster circuit (101) in the rank of the output voltage of the voltage output end (132), the pulsewidth modulation electricity
Road (120) has first input end (145),
The output end (129) of the multistage reference voltage circuit (123) can provide the reference voltage of at least two ranks；
The voltage comparator circuit (121) is used for the voltage of the output end (156) of observation circuit (105) and multistage reference voltage
The voltage of the output end (129) of circuit (123) is compared, and produce voltage adjustment indication signal, and the voltage ratio compared with
Voltage adjustment indication signal is output to the first of the pulse-width modulation circuit (120) by the output end (141) of circuit (121)
Input (145), for adjusting the output voltage rank of booster circuit (101) by the pulse-width modulation circuit (120)；
The control circuit (109) is used for the voltage change indication signal of receiving voltage change detecting circuit (107) output
Produce reference voltage level signal, the control circuit (109) has the first output end (191), the control circuit (109) from
First output end (191) exports the reference voltage level signal to the multistage reference voltage circuit (123), for adjusting
Save the rank of the reference voltage of the multistage reference voltage circuit (123).
5. high-voltage power circuit according to claim 4, it is characterised in that：
The pulse-width modulation circuit (120) has the second input (146)；
The control circuit (109) has the second output end (192), and second output end (192) is used for pulsewidth modulation electricity
Second input (146) the output high-tension circuit make-and-break signal on road (120), for controlling the output of booster circuit (101).
6. high-voltage power circuit according to claim 5, it is characterised in that：
The voltage output for being used to control the output of booster circuit (101) to refer to temporarily disconnect booster circuit (101) exists afterwards
Recover voltage output in certain time.
7. high-voltage power circuit according to claim 4, it is characterised in that：
The preset reference value is ground voltage.
8. high-voltage power circuit according to claim 4, it is characterised in that：
The mutation of voltage change indication signal reflection output voltage, the control circuit (109) in the unit interval according to receiving
The number of the voltage change indication signal arrived produces reference voltage level signal, and is supplied to the multistage reference voltage circuit
(123), so as to the reference voltage rank realization regulation booster circuit by adjusting multistage reference voltage circuit (123)
(101) the output voltage rank of output end (132).
9. high-voltage power circuit according to claim 4, it is characterised in that
The multistage reference voltage circuit (123) includes power resistor, and the multistage reference voltage circuit (123) is connect by regulation
The resistance for entering the power resistor of multistage reference voltage circuit (123) circuit adjusts the rank of the multistage reference voltage.
10. high-voltage power circuit according to claim 9, it is characterised in that
The multistage reference voltage circuit (123) includes triode (221,222), and the triode (221,222) is used to adjust
Access the resistance of the power resistor of multistage reference voltage circuit (123) circuit.
11. high-voltage power circuit according to claim 4, it is characterised in that：
The voltage change detection circuit (107) includes voltage change comparator (240), the voltage change comparator (240)
With first input end (171) and the second input (172), the first input end (171) is connected with observation circuit, and described
Two inputs (172) are grounded.
12. high-voltage power circuit according to claim 4, it is characterised in that：
The voltage comparator circuit (121) includes voltage adjustment comparator (250), and the voltage adjustment comparator (250) has
First input end (261) and the second input (262), the first input end (261) is connected with observation circuit (105), described
Second input (262) is connected with the multistage reference voltage circuit (123).
A kind of 13. high-tension electricity source plate, it is characterised in that：
The high-tension electricity source plate includes the high-voltage power circuit as any one of claim 1-12, the high-tension electricity source plate
For electrostatic dust collection equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721291866.8U CN207188003U (en) | 2017-09-30 | 2017-09-30 | High-voltage power circuit and high-tension electricity source plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721291866.8U CN207188003U (en) | 2017-09-30 | 2017-09-30 | High-voltage power circuit and high-tension electricity source plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207188003U true CN207188003U (en) | 2018-04-06 |
Family
ID=61787731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721291866.8U Withdrawn - After Issue CN207188003U (en) | 2017-09-30 | 2017-09-30 | High-voltage power circuit and high-tension electricity source plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207188003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108499739A (en) * | 2017-09-30 | 2018-09-07 | 江森自控空调冷冻设备(无锡)有限公司 | The method of high-voltage power circuit, high-voltage electricity source plate and control high tension voltage output |
| CN110002405A (en) * | 2019-04-22 | 2019-07-12 | 金仪得科技（深圳）有限公司 | A kind of hand-hold ozone generator |
-
2017
- 2017-09-30 CN CN201721291866.8U patent/CN207188003U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108499739A (en) * | 2017-09-30 | 2018-09-07 | 江森自控空调冷冻设备(无锡)有限公司 | The method of high-voltage power circuit, high-voltage electricity source plate and control high tension voltage output |
| CN110002405A (en) * | 2019-04-22 | 2019-07-12 | 金仪得科技（深圳）有限公司 | A kind of hand-hold ozone generator |
| CN110002405B (en) * | 2019-04-22 | 2023-06-02 | 金毅电子（深圳）有限公司 | Handheld ozone generator |
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