CN205622496U - Discharge circuit and ac energisation device - Google Patents
Discharge circuit and ac energisation device Download PDFInfo
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- CN205622496U CN205622496U CN201620267668.7U CN201620267668U CN205622496U CN 205622496 U CN205622496 U CN 205622496U CN 201620267668 U CN201620267668 U CN 201620267668U CN 205622496 U CN205622496 U CN 205622496U
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Abstract
The utility model relates to a power management technique field provides a discharge circuit and ac energisation device. This discharge circuit opens the mobile core piece with alternating current power supply to be connected, including discharge cell and switch element, the switch element with discharge cell, alternating current power supply open the power foot of mobile core piece and high presser foot that alternating current power supply opened the mobile core piece is connected, the discharge cell is connected with the high presser foot that alternating current power supply opened the mobile core piece, after the power shuts down, switch unit control the discharge cell is opened, to connect in the big electric capacity that alternating current power supply opened on the high presser foot of mobile core piece discharges, and the voltage that makes its both ends is at the safe voltage within range, like this, has both guaranteed the stability of power strip, has avoided the untimely potential safety hazard of bringing of big capacitor discharge again. Simultaneously, reduced artifical exoelectric step, labour saving and time saving practices thrift the cost.
Description
Technical field
This utility model relates to technical field of power management, particularly relates to a kind of discharge circuit and Alternating Current Power Supply dress
Put.
Background technology
At present, Power Management Design power topological structure between 10W-90W all uses inverse-excitation type (i.e. AC-DC)
Realize concrete merit.Before 4-5, it is all to use DC (Direct that the chip of chip manufacturer design starts function
Current, direct current) start, the sampling after bulky capacitor is the power supply being received chip by several hundreds of K resistance
Foot, the shortcoming of this design is that power standby power consumption is between 0.25W-0.3W.Along with the development of power technology,
The efficiency of power supply is required more and more higher by various countries, and subsequently, chip manufacturer releases and uses AC (Alternating
Current, exchange) chip that starts, as it is shown in figure 1, directly from live wire AC-L or the zero line of alternating current
AC-N meets resistance supply pin VCC or the high presser feet HV to AC bootrom of several hundreds of K, so
Be equivalent on bulky capacitor EC1, just do not have fictitious load, power standby power can accomplish below 0.1W, meet
Present generation power supplies Energy Efficiency Standard.
It is well known that, inverse-excitation type bulky capacitor be mainly used for energy storage, if power supply shutdown after, greatly electricity
Holding and do not have fictitious load, it is relatively slow for going to discharge by itself capacitive load, it is demonstrated experimentally that power supply shutdown
Rear placement 2-3 days, bulky capacitor has the voltage of about 100V, if now staff imprudence is encountered, can exist
Shock hazard, if power panel has short circuit and aircraft bombing risk after encountering metallics.And at present bulky capacitor is put
Electricity mainly by manually going electric discharge, if electric discharge is not in time, can affect the stability of power panel, and exist
Potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of discharge circuit and AC power supply device, it is intended to solve existing
When technology uses AC bootrom, after bulky capacitor, there is no fictitious load, if bulky capacitor discharges not in time, can shadow
The stability ringing power panel and the problem that there is potential safety hazard.
This utility model is achieved in that a kind of discharge circuit, with the supply pin of alternating current power supply bootrom
Connecting with high presser feet, described discharge circuit includes:
First end is connected with the supply pin of described alternating current power supply bootrom, carries out the current-limiting resistance of current limliting；
It is connected with the high presser feet of described alternating current power supply bootrom, after power supply shuts down, to being connected to described friendship
Bulky capacitor on the high presser feet of stream power initiation chip carries out the discharge cell discharged；
With described discharge cell, the second end of described current-limiting resistance and the power supply of described alternating current power supply bootrom
Foot connects, and after power supply shuts down, controls the switch element that described discharge cell is opened.
Further, described discharge cell includes the 6th resistance, the 7th resistance, the 8th resistance and the first switch
Pipe；
The control of described first switching tube terminates described switch element, and the control end of described first switching tube is the most logical
Cross described 6th resistance eutral grounding, the cold end ground connection of described first switching tube, described 7th resistance and described
8th resistance is serially connected with high presser feet and the hot end of described first switching tube of described alternating current power supply bootrom
Between.
Further, described switch element includes that the 3rd diode, the 3rd resistance, the 4th resistance and second are opened
Guan Guan；
The hot end of described second switch pipe connects the second end of described current-limiting resistance and described first switch respectively
The control end of pipe, the cold end ground connection of described second switch pipe, the control end of described second switch pipe passes through
Described 3rd resistance connects the negative electrode of described 3rd diode, and the control end of described second switch pipe is also by described
4th resistance eutral grounding, the anode of described 3rd diode connects the supply pin of described alternating current power supply bootrom.
Further, described first switching tube uses NMOS tube, and the grid of described NMOS tube is described the
The control end of one switching tube, the source electrode of described NMOS tube is the cold end of described first switching tube, described
The hot end that drain electrode is described first switching tube of NMOS tube.
Further, described first switching tube uses NPN type triode, the base of described NPN type triode
The control end of the most described first switching tube, the most described first switching tube of transmitting of described NPN type triode
Cold end, the hot end of the most described first switching tube of current collection of described NPN type triode.
Further, described second switch pipe uses NMOS tube, and the grid of described NMOS tube is described the
The control end of two switching tubes, the source electrode of described NMOS tube is the cold end of described second switch pipe, described
The hot end that drain electrode is described second switch pipe of NMOS tube.
Further, described second switch pipe uses NPN type triode, the base of described NPN type triode
The control end of the most described second switch pipe, the transmitting the most described second switch pipe of described NPN type triode
Cold end, the hot end of the current collection the most described second switch pipe of described NPN type triode.
Another object of the present utility model also resides in a kind of AC power supply device of offer, starts including alternating current power supply
Chip, described AC power supply device includes discharge circuit described above.
Further, described AC power supply device also includes: the first diode, the second diode, the first electricity
Resistance, the second resistance, commutator, energy storage bulky capacitor, transformator and the first electric capacity；
The anode of described first diode and the anode of described second diode connect the live wire and zero of alternating current respectively
Line, the negative electrode of described first diode and the negative electrode of described second diode connect altogether, described first resistance and institute
State the second resistance be serially connected with the negative electrode of described first diode and described alternating current power supply bootrom high presser feet it
Between, the first end of described commutator and the second end connect anode and second diode of described first diode respectively
Anode, the negative pole of the anode of described energy storage bulky capacitor and the armature winding of described transformator is connected to described whole altogether
4th end of stream device, the negative electrode of described energy storage bulky capacitor and the 3rd end of described commutator are connected to ground altogether, described
The positive pole of the secondary windings of transformator connects the supply pin of described alternating current power supply bootrom, and described alternating current power supply opens
The supply pin of dynamic chip is by described first capacity earth.
In embodiment of the present utility model, described discharge circuit is connected with alternating current power supply bootrom, including
Discharge cell and switch element, described switch element and described discharge cell, the electricity of alternating current power supply bootrom
The high presser feet of source foot and alternating current power supply bootrom connects, described discharge cell and alternating current power supply bootrom
High presser feet connects, and after power supply shuts down, described switch element controls described discharge cell and opens, to being connected to
Bulky capacitor on the high presser feet of described alternating current power supply bootrom discharges so that it is the voltage at two ends is in safety
In voltage range, so, both ensure that the stability of power panel, and turn avoid bulky capacitor electric discharge and carry not in time
The potential safety hazard come.Meanwhile, decrease the step of manual discharge, time saving and energy saving, cost-effective.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram using AC starting chip in prior art；
The function structure chart of the discharge circuit that Fig. 2 provides for this utility model embodiment；
The circuit structure diagram of the discharge circuit that Fig. 3 provides for this utility model embodiment；
The circuit structure diagram of the AC power supply device that Fig. 4 provides for this utility model embodiment.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and
This utility model is described in further detail by detailed description of the invention.Should be appreciated that tool described herein
Body embodiment is used only for explaining this utility model, is not limited to this utility model.
Embodiment one:
This utility model first embodiment provides a kind of discharge circuit.
Fig. 2 shows the function structure chart of the discharge circuit that this utility model first embodiment provides.In order to just
In explanation, illustrate only the part relevant to this utility model embodiment.
A kind of discharge circuit, is connected with the supply pin VCC of alternating current power supply bootrom U1 and high presser feet HV,
Described discharge circuit includes:
First end is connected with the supply pin VCC of alternating current power supply bootrom U1, carries out the current-limiting resistance of current limliting
R5；
It is connected with the high presser feet HV of alternating current power supply bootrom U1, after power supply shuts down, to being connected to power supply
Energy storage bulky capacitor EC1 on the high presser feet HV of bootrom U1 carries out the discharge cell 101 discharged；
With discharge cell 101, second end of current-limiting resistance R5 and the supply pin VCC of power initiation chip U1
Connect, after power supply shuts down, control the switch element 102 that discharge cell 101 is opened.
In the present embodiment, the model of alternating current power supply bootrom U1 is OB5269B, naturally it is also possible to be
Other alternating current power supply bootrom.
Fig. 3 shows the circuit structure diagram of the discharge circuit that this utility model embodiment provides.For the ease of saying
Bright, illustrate only the part relevant to this utility model embodiment.
As an embodiment of the present utility model, discharge cell 101 include the 6th resistance R6, the 7th resistance R7,
8th resistance R8 and the first switching tube 10；
The control termination switch element 102 of the first switching tube 10, the control end of the first switching tube 10 is also by the
Six resistance R6 ground connection, the cold end ground connection of the first switching tube 10, the 7th resistance R7 and the 8th resistance R8
It is serially connected with between the high presser feet HV of alternating current power supply bootrom U1 and the hot end of the first switching tube 10.
As an embodiment of the present utility model, the first switching tube 10 uses NMOS tube Q1, NMOS tube
The grid of Q1 is the control end of the first switching tube 10, and the source electrode of NMOS tube Q1 is the first switching tube 10
Cold end, the drain electrode of NMOS tube Q1 is the hot end of the first switching tube 10.
As another embodiment of the present utility model, the first switching tube 10 can also use NPN type triode,
The base stage of NPN type triode is the control end of the first switching tube 10, the transmitting of NPN type triode extremely
The cold end of one switching tube 10, the hot end of the current collection of NPN type triode the extremely first switching tube 10.
As an embodiment of the present utility model, switch element 102 includes the 3rd diode D3, the 3rd resistance
R3, the 4th resistance R4 and second switch pipe 20；
The hot end of second switch pipe 20 connects second end of current-limiting resistance R5 and the first switching tube 10 respectively
Controlling end, the cold end ground connection of second switch pipe 20, the control end of second switch pipe 20 is by the 3rd electricity
Resistance R3 connects the negative electrode of the 3rd diode D3, and the control end of second switch pipe 20 connects also by the 4th resistance R4
Ground, the anode of the 3rd diode D3 meets the supply pin VCC of alternating current power supply bootrom U1.
In embodiment of the present utility model, the 3rd diode D3 is used for rectification.
As an embodiment of the present utility model, second switch pipe 20 uses NPN type triode Q2, NPN
The control end that base stage is second switch pipe 20 of type audion Q2, the transmitting of NPN type triode Q2 is extremely
The cold end of second switch pipe 20, the height of the current collection of NPN type triode Q2 extremely second switch pipe 20
Potential end.
As another embodiment of the present utility model, second switch pipe 20 can also use NMOS tube, NMOS
The grid of pipe is the control end of second switch pipe 20, and the source electrode of NMOS tube is the low electricity of second switch pipe 20
Position end, the hot end that drain electrode is second switch pipe 20 of NMOS tube.
Certainly, the first switching tube 10 and second switch pipe 20 can also use controllable silicon, switch chip etc.,
And Fig. 3 is only an exemplary plot of the present utility model.
Embodiment two:
Second embodiment of the present utility model provides a kind of AC power supply device.
Fig. 4 shows the circuit structure diagram of the AC power supply device that this utility model the second embodiment provides.For
It is easy to explanation, illustrate only the part relevant to this utility model embodiment.
A kind of AC power supply device, including alternating current power supply bootrom U1, described AC power supply device also includes
The supply pin VCC and high presser feet HV of discharge circuit, described discharge circuit and alternating current power supply bootrom U1
Connecting, described discharge circuit includes:
First end is connected with the supply pin VCC of alternating current power supply bootrom U1, carries out the current-limiting resistance of current limliting
R5；
It is connected with the high presser feet HV of alternating current power supply bootrom U1, after power supply shuts down, to being connected to power supply
Energy storage bulky capacitor EC1 on the high presser feet HV of bootrom U1 carries out the discharge cell 101 discharged；
With discharge cell 101, second end of current-limiting resistance R5 and the supply pin VCC of power initiation chip U1
Connect, after power supply shuts down, control the switch element 102 that discharge cell 101 is opened.
In the present embodiment, the model of alternating current power supply bootrom U1 is OB5269B, naturally it is also possible to be
Other alternating current power supply bootrom.
As an embodiment of the present utility model, discharge cell 101 include the 6th resistance R6, the 7th resistance R7,
8th resistance R8 and the first switching tube 10；
The control termination switch element 102 of the first switching tube 10, the control end of the first switching tube 10 is also by the
Six resistance R6 ground connection, the cold end ground connection of the first switching tube 10, the 7th resistance R7 and the 8th resistance R8
It is serially connected with between the high presser feet HV of alternating current power supply bootrom U1 and the hot end of the first switching tube 10.
As an embodiment of the present utility model, the first switching tube 10 uses NMOS tube Q1, NMOS tube
The grid of Q1 is the control end of the first switching tube 10, and the source electrode of NMOS tube Q1 is the first switching tube 10
Cold end, the drain electrode of NMOS tube Q1 is the hot end of the first switching tube 10.
As another embodiment of the present utility model, the first switching tube 10 can also use NPN type triode,
The base stage of NPN type triode is the control end of the first switching tube 10, the transmitting of NPN type triode extremely
The cold end of one switching tube 10, the hot end of the current collection of NPN type triode the extremely first switching tube 10.
As an embodiment of the present utility model, switch element 102 includes the 3rd diode D3, the 3rd resistance
R3, the 4th resistance R4 and second switch pipe 20；
The hot end of second switch pipe 20 connects second end of current-limiting resistance R5 and the first switching tube 10 respectively
Controlling end, the cold end ground connection of second switch pipe 20, the control end of second switch pipe 20 is by the 3rd electricity
Resistance R3 connects the negative electrode of the 3rd diode D3, and the control end of second switch pipe 20 connects also by the 4th resistance R4
Ground, the anode of the 3rd diode D3 meets the supply pin VCC of alternating current power supply bootrom U1.
In embodiment of the present utility model, the 3rd diode D3 is used for rectification.
As an embodiment of the present utility model, second switch pipe 20 uses NPN type triode Q2, NPN
The control end that base stage is second switch pipe 20 of type audion Q2, the transmitting of NPN type triode Q2 is extremely
The cold end of second switch pipe 20, the height of the current collection of NPN type triode Q2 extremely second switch pipe 20
Potential end.
As another embodiment of the present utility model, second switch pipe 20 can also use NMOS tube, NMOS
The grid of pipe is the control end of second switch pipe 20, and the source electrode of NMOS tube is the low electricity of second switch pipe 20
Position end, the hot end that drain electrode is second switch pipe 20 of NMOS tube.
Certainly, the first switching tube 10 and second switch pipe 20 can also use controllable silicon, switch chip etc.,
And Fig. 4 is only an exemplary plot of the present utility model.
As an embodiment of the present utility model, AC power supply device also includes: the first diode D1, second
Diode D2, the first resistance R1, the second resistance R2, commutator D, energy storage bulky capacitor EC1, transformator
T and the first electric capacity C1；
The anode of the first diode D1 and the anode of the second diode D2 meet the live wire AC-L of alternating current respectively
Connect altogether with the negative electrode of zero line AC-N, the first diode D1 and the negative electrode of the second diode D2, the first resistance
R1 and the second resistance R2 is serially connected with negative electrode and the high pressure of alternating current power supply bootrom U1 of the first diode D1
Between foot HV, first end 1 of commutator D and the second end 2 connect the anode and of the first diode D1 respectively
The anode of two diode D2, the negative pole of the anode of energy storage bulky capacitor EC1 and the armature winding of transformator T is altogether
It is connected to the 4th end 4 of commutator D, the negative electrode of energy storage bulky capacitor EC1 and the 3rd end 3 of commutator D connect altogether
Yu Di, the positive pole of the secondary windings of transformator T meets the supply pin VCC of alternating current power supply bootrom U1, hands over
The supply pin VCC of stream power initiation chip U1 is by the first electric capacity C1 ground connection.
In the present embodiment, the first diode D1 and the second diode D2 is used for rectification.
Below in conjunction with operation principle, embodiment of the present utility model is described further:
With reference to Fig. 3, when power work, the live wire AC-L of alternating current and the electric current of zero line AC-N end are respectively
After the first diode D1 and the second diode D2 rectification, then through the first resistance R1 and the second resistance
R2 to the high presser feet HV exchanging power initiation chip U1 so that the high presser feet of alternating current power supply bootrom U1
HV runs, and meanwhile, signal is given to the electricity of its dynamic chip U1 of alternating current power supply through commutator D and transformator T
Source foot VCC, in the process, the electric current on the secondary windings of transformator T is whole by the 3rd diode D3
After stream, then the dividing potential drop by the shunting of the 3rd resistance R3 with the 4th resistance R4, to NPN type triode Q2
One voltage of base stage, NPN type triode Q2 turn on, because of colelctor electrode and the NMOS of NPN type triode Q2
The grid of pipe Q1 is connected, and when NPN type triode Q2 turns on, voltage is from NPN type triode Q2
Colelctor electrode flows to transmitter, and now, the grid potential of NMOS tube Q1 is pulled low, and NMOS tube Q1 is ended
Do not work.After power supply shuts down, the energy cut-off of the secondary windings of transformator T, and it is connected to alternating current power supply
Voltage on the first electric capacity C1 of the supply pin VCC of bootrom U1 drops to 5V from 22V and also needs to 700
Many milliseconds, in this hundreds of millisecond, the energy storage of the high presser feet HV being connected to alternating current power supply bootrom U1 is big
Voltage on electric capacity EC1 is through the grid of current-limiting resistance R5 and the 6th resistance R6 to NMOS tube Q1, root
According to the characteristic of NMOS tube Q1, its conducting voltage is at more than 3V, and now, NMOS tube Q1 turns on, storage
Voltage on energy bulky capacitor EC1 flows to the earth by the 7th resistance R7 and the 8th resistance R8, makes the big electricity of energy storage
The voltage holding EC1 is in safe voltage.
In embodiment of the present utility model, described discharge circuit is connected with alternating current power supply bootrom, including
Discharge cell and switch element, described switch element and described discharge cell, the electricity of alternating current power supply bootrom
The high presser feet of source foot and alternating current power supply bootrom connects, described discharge cell and alternating current power supply bootrom
High presser feet connects, and after power supply shuts down, described switch element controls described discharge cell and opens, to being connected to
Bulky capacitor on the high presser feet of described alternating current power supply bootrom discharges so that it is the voltage at two ends is in safety
In voltage range, so, both ensure that the stability of power panel, and turn avoid bulky capacitor electric discharge and carry not in time
The potential safety hazard come.Meanwhile, decrease the step of manual discharge, time saving and energy saving, cost-effective.
The above is this utility model preferred embodiment, is not limited to this utility model, all in this reality
Any modification, equivalent substitution and improvement etc. made by novel principle etc, should be included in this practicality new
Within the protection domain of type.
Claims (9)
1. a discharge circuit, is connected with the supply pin of alternating current power supply bootrom and high presser feet, and its feature exists
In, described discharge circuit includes:
First end is connected with the supply pin of described alternating current power supply bootrom, carries out the current-limiting resistance of current limliting；
It is connected with the high presser feet of described alternating current power supply bootrom, after power supply shuts down, to being connected to described friendship
Bulky capacitor on the high presser feet of stream power initiation chip carries out the discharge cell discharged；
With described discharge cell, the second end of described current-limiting resistance and the power supply of described alternating current power supply bootrom
Foot connects, and after power supply shuts down, controls the switch element that described discharge cell is opened.
2. discharge circuit as claimed in claim 1, it is characterised in that described discharge cell includes the 6th electricity
Resistance, the 7th resistance, the 8th resistance and the first switching tube；
The control of described first switching tube terminates described switch element, and the control end of described first switching tube is the most logical
Cross described 6th resistance eutral grounding, the cold end ground connection of described first switching tube, described 7th resistance and described
8th resistance is serially connected with high presser feet and the hot end of described first switching tube of described alternating current power supply bootrom
Between.
3. discharge circuit as claimed in claim 2, it is characterised in that described switch element includes the three or two
Pole pipe, the 3rd resistance, the 4th resistance and second switch pipe；
The hot end of described second switch pipe connects the second end of described current-limiting resistance and described first switch respectively
The control end of pipe, the cold end ground connection of described second switch pipe, the control end of described second switch pipe passes through
Described 3rd resistance connects the negative electrode of described 3rd diode, and the control end of described second switch pipe is also by described
4th resistance eutral grounding, the anode of described 3rd diode connects the supply pin of described alternating current power supply bootrom.
4. discharge circuit as claimed in claim 2, it is characterised in that described first switching tube uses NMOS
Pipe, the grid of described NMOS tube is the control end of described first switching tube, and the source electrode of described NMOS tube is
The cold end of described first switching tube, the high potential that drain electrode is described first switching tube of described NMOS tube
End.
5. discharge circuit as claimed in claim 2, it is characterised in that described first switching tube uses NPN
Type audion, the base stage of described NPN type triode is the control end of described first switching tube, described NPN
The cold end of the most described first switching tube of transmitting of type audion, the colelctor electrode of described NPN type triode
Hot end for described first switching tube.
6. discharge circuit as claimed in claim 3, it is characterised in that described second switch pipe uses NMOS
Pipe, the grid of described NMOS tube is the control end of described second switch pipe, and the source electrode of described NMOS tube is
The cold end of described second switch pipe, the high potential that drain electrode is described second switch pipe of described NMOS tube
End.
7. discharge circuit as claimed in claim 3, it is characterised in that described second switch pipe uses NPN
Type audion, the base stage of described NPN type triode is the control end of described second switch pipe, described NPN
The cold end of the transmitting the most described second switch pipe of type audion, the colelctor electrode of described NPN type triode
Hot end for described second switch pipe.
8. an AC power supply device, including alternating current power supply bootrom, it is characterised in that described exchange supplies
Electric installation also includes the discharge circuit as described in claim 1～7 any one.
9. AC power supply device as claimed in claim 8, it is characterised in that described AC power supply device is also
Including: the first diode, the second diode, the first resistance, the second resistance, commutator, energy storage bulky capacitor,
Transformator and the first electric capacity；
The anode of described first diode and the anode of described second diode connect the live wire and zero of alternating current respectively
Line, the negative electrode of described first diode and the negative electrode of described second diode connect altogether, described first resistance and institute
State the second resistance be serially connected with the negative electrode of described first diode and described alternating current power supply bootrom high presser feet it
Between, the first end of described commutator and the second end connect anode and second diode of described first diode respectively
Anode, the negative pole of the anode of described energy storage bulky capacitor and the armature winding of described transformator is connected to described whole altogether
4th end of stream device, the negative electrode of described energy storage bulky capacitor and the 3rd end of described commutator are connected to ground altogether, described
The positive pole of the secondary windings of transformator connects the supply pin of described alternating current power supply bootrom, and described alternating current power supply opens
The supply pin of dynamic chip is by described first capacity earth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620267668.7U CN205622496U (en) | 2016-03-30 | 2016-03-30 | Discharge circuit and ac energisation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620267668.7U CN205622496U (en) | 2016-03-30 | 2016-03-30 | Discharge circuit and ac energisation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205622496U true CN205622496U (en) | 2016-10-05 |
Family
ID=57029258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620267668.7U Active CN205622496U (en) | 2016-03-30 | 2016-03-30 | Discharge circuit and ac energisation device |
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| CN (1) | CN205622496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680678A (en) * | 2016-03-30 | 2016-06-15 | 合肥惠科金扬科技有限公司 | Discharge circuit and AC power supply device |
| CN109116960A (en) * | 2017-06-26 | 2019-01-01 | 纬创资通（中山）有限公司 | Corona discharge control device, circuit and its control method |
-
2016
- 2016-03-30 CN CN201620267668.7U patent/CN205622496U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680678A (en) * | 2016-03-30 | 2016-06-15 | 合肥惠科金扬科技有限公司 | Discharge circuit and AC power supply device |
| CN105680678B (en) * | 2016-03-30 | 2019-01-18 | 合肥惠科金扬科技有限公司 | A kind of discharge circuit and AC power supply device |
| CN109116960A (en) * | 2017-06-26 | 2019-01-01 | 纬创资通（中山）有限公司 | Corona discharge control device, circuit and its control method |
| CN109116960B (en) * | 2017-06-26 | 2020-08-07 | 纬创资通（中山）有限公司 | Power supply discharge control device, circuit and control method thereof |
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