CN204967613U - Wide region self -adaptation supply circuit for programmable device - Google Patents
Wide region self -adaptation supply circuit for programmable device Download PDFInfo
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- CN204967613U CN204967613U CN201520759802.0U CN201520759802U CN204967613U CN 204967613 U CN204967613 U CN 204967613U CN 201520759802 U CN201520759802 U CN 201520759802U CN 204967613 U CN204967613 U CN 204967613U
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Abstract
The utility model discloses a wide region self -adaptation supply circuit for programmable device, including power source J1, diode D1, inductance L1, DC power supply converter chip U1, fuse F1, electric capacity C1 and resistance R1, diode D2 negative pole is connected respectively to power source J1 one end and diode D3 is anodal, diode D4 negative pole is connected respectively to the power source J1 other end and diode D5 is anodal, anodal and the ground connection of the anodal connection diode D4 of diode D2, diode D5 negative pole is connected respectively to diode D3 negative pole, grounded capacitance C4, grounded capacitance C5, diode D6 negative pole, inductance L1 and DC power supply converter chip U1 pin 2, fuse F1 and electric capacity C6 are connected respectively to diode D6 positive pole, USB interface CN1 pin 4 and ground connection are connected to the electric capacity C6 other end. The utility model discloses make the user freely use and exchange perhaps direct current 5 -24V's power adapter, supply power for our programmable device, when convenience of customers uses, effectively protected the programmable device product not burnt.
Description
Technical field
The utility model relates to a kind of power supply circuits, specifically a kind of programmable device wide region adaptation power supply circuit.
Background technology
At present, universal programmer drives entirely in other companies, and power consumption is all larger, external DC is needed to power, but the external power supply technique details of different vendor is different, and voltage has DC12V, DC9V, interface polarity has interior just outer negative, also have and interiorly negative outer be just very easy to wrong plug adapter, gently then cisco unity malfunction, heavy then burn programmable device, user must the external adapter of use of extreme care.For addressing this problem, we design a kind of wide region adaptation power supply circuit, when programmable device normally works, 5V is provided to power by USB port, if USB port electricity shortage, user freely can use the power supply adaptor of interchange or direct current 5-24V, powers to our programmable device.While being user-friendly to, available protecting programmable device product is not burnt.
Utility model content
The purpose of this utility model is to provide a kind of programmable device wide region adaptation power supply circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of programmable device wide region adaptation power supply circuit, comprise power interface J1, diode D1, inductance L 1, DC power convertor chip U1, fuse F1, electric capacity C1 and resistance R1, power interface J1 one end connects diode D2 negative pole and diode D3 positive pole respectively, the power interface J1 other end connects diode D4 negative pole and diode D5 positive pole respectively, diode D2 cathode connecting diode D4 positive pole ground connection, diode D3 negative pole connects diode D5 negative pole respectively, ground capacity C4, ground capacity C5, diode D6 negative pole, inductance L 1 and DC power convertor chip U1 pin 2, diode D6 positive pole connects fuse F1 and electric capacity C6 respectively, the electric capacity C6 other end connects USB interface CN1 pin 4 and ground connection, the fuse F1 other end connects USB interface CN1 pin, described DC power convertor chip U1 pin 3 connects earth resistance R2 and resistance R1 respectively, resistance R1 connects ground capacity C3 respectively, ground capacity C2 and diode D1 negative pole, DC power convertor chip U1 pin 7 connects DC power convertor chip U1 pin 8 and ground connection, DC power convertor chip U1 pin 5 connects DC power convertor chip U1 pin 6 respectively, inductance L 1 other end and electric capacity C1, the electric capacity C1 other end connects grounded inductor L2 and diode D1 positive pole respectively, described DC power convertor chip U1 model is XL6007.
As the utility model further scheme: described power interface J1 is input as AC/DC5-24V.
Compared with prior art; the beneficial effects of the utility model are: the utility model enables user freely use the power supply adaptor of interchange or direct current 5-24V; power to our programmable device, while being user-friendly to, available protecting programmable device product is not burnt.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of programmable device wide region adaptation power supply circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of programmable device wide region adaptation power supply circuit, comprise power interface J1, diode D1, inductance L 1, DC power convertor chip U1, fuse F1, electric capacity C1 and resistance R1, power interface J1 one end connects diode D2 negative pole and diode D3 positive pole respectively, the power interface J1 other end connects diode D4 negative pole and diode D5 positive pole respectively, diode D2 cathode connecting diode D4 positive pole ground connection, diode D3 negative pole connects diode D5 negative pole respectively, ground capacity C4, ground capacity C5, diode D6 negative pole, inductance L 1 and DC power convertor chip U1 pin 2, diode D6 positive pole connects fuse F1 and electric capacity C6 respectively, the electric capacity C6 other end connects USB interface CN1 pin 4 and ground connection, the fuse F1 other end connects USB interface CN1 pin, described DC power convertor chip U1 pin 3 connects earth resistance R2 and resistance R1 respectively, resistance R1 connects ground capacity C3 respectively, ground capacity C2 and diode D1 negative pole, DC power convertor chip U1 pin 7 connects DC power convertor chip U1 pin 8 and ground connection, DC power convertor chip U1 pin 5 connects DC power convertor chip U1 pin 6 respectively, inductance L 1 other end and electric capacity C1, the electric capacity C1 other end connects grounded inductor L2 and diode D1 positive pole respectively, DC power convertor chip U1 model is XL6007.
Power interface J1 is input as AC/DC5-24V.
Operation principle of the present utility model is: refer to Fig. 1, forms one group of SPEIC circuit by U1, L1, L2, D1, C1, C2, and the VDD produced needed for programmable device powers or VPP powers.The feature of this circuit is, output voltage can be greater than, be equal to or less than input voltage, and such as during VDC=12V, input voltage VMAIN can be 5V, 12V or 24V.
During normal work, USB port can be used directly to power, J1 place does not need external power adapter, the 5V voltage that now USB port provides is added to the main power supply of VMAIN through D6, SPEIC circuit normally works, export the VDC voltage (between 1.25-26V, step-down or boosting self adaptation) set by R2 resistance.
If the USB port electricity shortage of computer, now user can plug the power supply adaptor of 5-24V from J1, through the bridge rectifier that D2/D3/D4/D5 is formed, regardless of user's access is exchange or direct current, interface is interior just outer negative or outer just interior negative, all can obtain the direct voltage between one group of 4 ~ 24V at VMAIN place, this voltage, through SPEIC circuit conversion, obtains the direct voltage that programmable device needs.Under the state of external adapter, D6 is in reverse blocking state, and USB does not provide electric current.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (2)
1. a programmable device wide region adaptation power supply circuit, comprise power interface J1, diode D1, inductance L 1, DC power convertor chip U1, fuse F1, electric capacity C1 and resistance R1, it is characterized in that, power interface J1 one end connects diode D2 negative pole and diode D3 positive pole respectively, the power interface J1 other end connects diode D4 negative pole and diode D5 positive pole respectively, diode D2 cathode connecting diode D4 positive pole ground connection, diode D3 negative pole connects diode D5 negative pole respectively, ground capacity C4, ground capacity C5, diode D6 negative pole, inductance L 1 and DC power convertor chip U1 pin 2, diode D6 positive pole connects fuse F1 and electric capacity C6 respectively, the electric capacity C6 other end connects USB interface CN1 pin 4 and ground connection, the fuse F1 other end connects USB interface CN1 pin, described DC power convertor chip U1 pin 3 connects earth resistance R2 and resistance R1 respectively, resistance R1 connects ground capacity C3 respectively, ground capacity C2 and diode D1 negative pole, DC power convertor chip U1 pin 7 connects DC power convertor chip U1 pin 8 and ground connection, DC power convertor chip U1 pin 5 connects DC power convertor chip U1 pin 6 respectively, inductance L 1 other end and electric capacity C1, the electric capacity C1 other end connects grounded inductor L2 and diode D1 positive pole respectively, described DC power convertor chip U1 model is XL6007.
2. programmable device wide region adaptation power supply circuit according to claim 1, it is characterized in that, described power interface J1 is input as AC/DC5-24V.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520759802.0U CN204967613U (en) | 2015-09-28 | 2015-09-28 | Wide region self -adaptation supply circuit for programmable device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520759802.0U CN204967613U (en) | 2015-09-28 | 2015-09-28 | Wide region self -adaptation supply circuit for programmable device |
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| CN204967613U true CN204967613U (en) | 2016-01-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787709A (en) * | 2016-12-20 | 2017-05-31 | 施耐德万高（天津）电气设备有限公司 | Wide input range power circuit |
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- 2015-09-28 CN CN201520759802.0U patent/CN204967613U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787709A (en) * | 2016-12-20 | 2017-05-31 | 施耐德万高（天津）电气设备有限公司 | Wide input range power circuit |
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