CN204216779U - A kind of jetting machine controller hardware realizes soft starting circuit - Google Patents
A kind of jetting machine controller hardware realizes soft starting circuit Download PDFInfo
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- CN204216779U CN204216779U CN201420619077.2U CN201420619077U CN204216779U CN 204216779 U CN204216779 U CN 204216779U CN 201420619077 U CN201420619077 U CN 201420619077U CN 204216779 U CN204216779 U CN 204216779U
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- electric capacity
- machine controller
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Abstract
The utility model discloses a kind of jetting machine controller hardware and realize soft starting circuit, comprise: electric power conversion apparatus, Switching Power Supply, control chip, the first electric capacity, described electric power conversion apparatus, Switching Power Supply, to be electrically connected between electric capacity and control chip.By the way, a kind of jetting machine controller hardware that the utility model provides realizes soft starting circuit, the control chip cost of use can be made low, soft start function realization simultaneously can reduce inductance, switching tube and booster diode constant power device current surplus and reduce costs, reduce inrush current shock simultaneously, suppress to be significantly improved to complete machine controller EMI.
Description
Technical field
The utility model relates to a kind of soft starting circuit, particularly relates to a kind of jetting machine controller hardware and realizes soft starting circuit.
Background technology
Current pfc circuit or do not add soft-start mode, or with the high PFC control chip with soft start function of cost, can not satisfy the demand.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of jetting machine controller hardware and realizes soft starting circuit, the control chip cost of use can be made low, soft start function realization simultaneously can reduce inductance, switching tube and booster diode constant power device current surplus and reduce costs, reduce inrush current shock simultaneously, suppress to be significantly improved to complete machine controller EMI.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of jetting machine controller hardware to realize soft starting circuit, comprise: electric power conversion apparatus, Switching Power Supply, control chip, the first electric capacity, described electric power conversion apparatus, Switching Power Supply, to be electrically connected between electric capacity and control chip; Described jetting machine controller hardware realizes also including control circuit in soft starting circuit, include in described control circuit: inductance, booster diode, power switch pipe, described inductance, booster diode, power switch pipe and electric power conversion apparatus, to be electrically connected between control chip and the first electric capacity.
In a preferred embodiment, current sensing means, voltage check device and overvoltage checkout gear is also included in described control circuit, described current sensing means, voltage check device are connected with control chip communication respectively with overvoltage checkout gear, and current sensing means, voltage check device and overvoltage checkout gear send current detection signal, voltage detection signal and overvoltage detection signal respectively, and described control chip processes current detection signal, voltage detection signal and overvoltage detection signal, thus output pulse width modulation duty cycle.
In a preferred embodiment, also include the second electric capacity, the 3rd electric capacity, the first resistance and the second resistance in described control circuit, described second electric capacity is held by the second conductive discharge by the first conductive discharge, the 3rd.
In a preferred embodiment, also include signaling switch in described control circuit, described voltage detection signal and overvoltage detection signal pass through the open-minded of signaling switch, thus provide sampled signal to control chip.
The beneficial effects of the utility model are: the control chip cost of use can be made low, soft start function realization simultaneously can reduce inductance, switching tube and booster diode constant power device current surplus and reduce costs, reduce inrush current shock simultaneously, suppress to be significantly improved to complete machine controller EMI.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the systematic schematic diagram that a kind of jetting machine controller hardware of the present utility model realizes soft starting circuit one preferred embodiment;
Fig. 2 is the circuit theory diagrams that a kind of jetting machine controller hardware of the present utility model realizes soft starting circuit one preferred embodiment.
Embodiment
Be clearly and completely described to the technical scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, the utility model embodiment comprises:
There is provided a kind of jetting machine controller hardware to realize soft starting circuit, comprising: electric power conversion apparatus, Switching Power Supply, control chip, the first electric capacity, described electric power conversion apparatus, Switching Power Supply, to be electrically connected between electric capacity and control chip.
Described jetting machine controller hardware realizes also including control circuit in soft starting circuit, include in described control circuit: inductance, booster diode, power switch pipe, described inductance, booster diode, power switch pipe and electric power conversion apparatus, to be electrically connected between control chip and the first electric capacity.
Current sensing means, voltage check device and overvoltage checkout gear is also included in described control circuit, described current sensing means, voltage check device are connected with control chip communication respectively with overvoltage checkout gear, and current sensing means, voltage check device and overvoltage checkout gear send current detection signal, voltage detection signal and overvoltage detection signal respectively, and described control chip processes current detection signal, voltage detection signal and overvoltage detection signal, thus output pulse width modulation duty cycle.
Also include the second electric capacity, the 3rd electric capacity, the first resistance and the second resistance in described control circuit, described second electric capacity is held by the second conductive discharge by the first conductive discharge, the 3rd.
Also include signaling switch in described control circuit, described voltage detection signal and overvoltage detection signal pass through the open-minded of signaling switch, thus provide sampled signal to control chip.
In a specific embodiment: build with hardware simplicity circuit and realize PFC soft starting circuit, cost low can soft-start time controllability strong.
The non-sine input current of high-pressure wash machine controller power switch meeting generating strap high harmonic content, harmonic wave can affect the miscellaneous equipment connecting same power supply, PFC(power factor correction was added before power switch) circuit can address this problem, and improve power work efficiency.
Booting moment pfc circuit boost boost value (△ U) is maximum, and comparatively large when PFC inductive current relatively normally works, the operating current required power switch pipe is high.By the mode that given output voltage sampled value analog signal switches, make pfc circuit booting moment reduce Boost boost value, thus reduce PFC inductive current and power switch pipe startup operating current, realize pfc circuit soft start function.
Circuit adopts PFC boost BOOST topological structure.Inductance L 1 is stored energy when power switch pipe QB1 turns off, and when switching tube is opened, inductance L 1 is charged to electric capacity C5 by booster diode D2.Control chip by ISNS be current detecting, to be voltage detecting and OVP be VFB that overvoltage detects three road signal samplings carries out processing rear output PWM duty ratio.
Described electric capacity C5 is the first electric capacity, electric capacity C70 is the second electric capacity, electric capacity C13 is the 3rd electric capacity, and described R17 is the first resistance, R18 is the second resistance.
At AC powered on moment, Switching Power Supply work.PFC control chip power supply is not opened and is not worked, VFB(voltage detecting) and OVP(overvoltage detect) sampled signal is opened by 5VON provides 5V sampled signal.After electric capacity C5 charging reaches the magnitude of voltage of setting, shutoff 5VON signal subsequently electric capacity C70 is discharged by resistance R17, and electric capacity C13 is discharged by resistance R18.Open 15VON and provide power supply to control chip, control chip is started working.Now the value sampled result of UVFB and UOVP is virtual is exaggerated UPN magnitude of voltage.Control chip is by ISNS(current detecting), VFB(voltage detecting) and OVP(overvoltage detect) three road signal samplings feed back output duty cycles will be much little.UPN actual sample value feedback is recovered, until electric capacity C5 is charged to default magnitude of voltage by UVFB and UOVP after switch adjustment several times.Reduce booting moment PFC impulse current by simulation to feedback sample signal, realize soft start work in PFC low cost situation.
The beneficial effect that the utility model mesohigh cleaning machine controller hardware realizes soft starting circuit and control method is:
Can make and use control chip cost low, soft start function realization simultaneously can reduce inductance, switching tube and booster diode constant power device current surplus and reduce costs, and reduces inrush current shock simultaneously, suppresses to be significantly improved to complete machine controller EMI.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. jetting machine controller hardware realizes a soft starting circuit, it is characterized in that, comprising: electric power conversion apparatus, Switching Power Supply, control chip, the first electric capacity, described electric power conversion apparatus, Switching Power Supply, is electrically connected between electric capacity and control chip;
Described jetting machine controller hardware realizes also including control circuit in soft starting circuit, include in described control circuit: inductance, booster diode, power switch pipe, described inductance, booster diode, power switch pipe and electric power conversion apparatus, to be electrically connected between control chip and the first electric capacity.
2. jetting machine controller hardware according to claim 1 realizes soft starting circuit, it is characterized in that, also current sensing means is included in described control circuit, voltage check device and overvoltage checkout gear, described current sensing means, voltage check device is connected with control chip communication respectively with overvoltage checkout gear, and current sensing means, voltage check device and overvoltage checkout gear send current detection signal respectively, voltage detection signal and overvoltage detection signal, and described control chip is to current detection signal, voltage detection signal and overvoltage detection signal process, thus output pulse width modulation duty cycle.
3. jetting machine controller hardware according to claim 2 realizes soft starting circuit, it is characterized in that, also include the second electric capacity, the 3rd electric capacity, the first resistance and the second resistance in described control circuit, described second electric capacity passes through the second conductive discharge by the first conductive discharge, the 3rd electric capacity.
4. jetting machine controller hardware according to claim 3 realizes soft starting circuit, it is characterized in that, also include signaling switch in described control circuit, described voltage detection signal and overvoltage detection signal pass through the open-minded of signaling switch, thus provide sampled signal to control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420619077.2U CN204216779U (en) | 2014-10-24 | 2014-10-24 | A kind of jetting machine controller hardware realizes soft starting circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420619077.2U CN204216779U (en) | 2014-10-24 | 2014-10-24 | A kind of jetting machine controller hardware realizes soft starting circuit |
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| CN204216779U true CN204216779U (en) | 2015-03-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321907A (en) * | 2018-04-03 | 2018-07-24 | 苏州瑞驱电动科技有限公司 | Slow charging circuit, converter circuit and its buffering method for electrically of BUCK circuits |
| CN114710018A (en) * | 2022-06-06 | 2022-07-05 | 广东东菱电源科技有限公司 | PFC protection circuit for fast startup and shutdown |
-
2014
- 2014-10-24 CN CN201420619077.2U patent/CN204216779U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321907A (en) * | 2018-04-03 | 2018-07-24 | 苏州瑞驱电动科技有限公司 | Slow charging circuit, converter circuit and its buffering method for electrically of BUCK circuits |
| CN114710018A (en) * | 2022-06-06 | 2022-07-05 | 广东东菱电源科技有限公司 | PFC protection circuit for fast startup and shutdown |
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Address after: No.65-1 Xinggang Road, Zhonglou Economic Development Zone, Changzhou City, Jiangsu Province Patentee after: Gelibo (Jiangsu) Co., Ltd Address before: 213023 Jiangsu city in Changzhou Province Economic Development Zone Xingang Zhonglou District Tower Road No. 65 Patentee before: CHANGZHOU GLOBE Co.,Ltd. |