CN204392108U - A kind of supply unit for pre-payment controller - Google Patents
A kind of supply unit for pre-payment controller Download PDFInfo
- Publication number
- CN204392108U CN204392108U CN201520013231.6U CN201520013231U CN204392108U CN 204392108 U CN204392108 U CN 204392108U CN 201520013231 U CN201520013231 U CN 201520013231U CN 204392108 U CN204392108 U CN 204392108U
- Authority
- CN
- China
- Prior art keywords
- oxide
- metal
- semiconductor
- resistance
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of supply unit for pre-payment controller, comprise bridge rectifier, four diodes of bridge rectifier are parallel with metal-oxide-semiconductor, metal-oxide-semiconductor controls break-make by time delay inductance, the two stage filter circuit of bridge rectifier by being connected in series, carry out direct current output, two stage filter circuit carries out buffering to the significantly fluctuation in direct current signal and spike interference respectively and filters.The utility model can improve the deficiencies in the prior art, improves the efficiency of transmission of whole supply unit, effectively reduces and exports interference.
Description
Technical field
The utility model relates to a kind of supply unit, especially a kind of supply unit for pre-payment controller.
Background technology
Present prepayment mode replaces meter reading method gradually, and pre-payment controller judges the divide-shut brake of control switch according to remaining sum in subscriber card, realizes automatically controlling.Pre-payment controller is according to the different demands of client, and power supply needed for internal component has dividing of AC and DC.This just needs the unification carrying out alternating current-direct current when exporting, and is all generally be direct current by AC rectification, then unifiedly exports.Existing rectification circuit ubiquity interference is large, and inefficient problem is urgently to be resolved hurrily.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of supply unit for pre-payment controller, can solve the deficiencies in the prior art, improve the efficiency of transmission of whole supply unit, effectively reduces and exports interference.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of supply unit for pre-payment controller, comprise the bridge rectifier connecting AC power, bridge rectifier comprises the first diode, second diode, 3rd diode and the 4th diode, the first metal-oxide-semiconductor is parallel with respectively at four diode two ends, second metal-oxide-semiconductor, 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, the drain electrode of each metal-oxide-semiconductor is connected with the positive pole of corresponding diode, the source electrode of each metal-oxide-semiconductor is connected with the negative pole of corresponding diode, two inputs of bridge rectifier are connected with time delay inductance, the grid of four metal-oxide-semiconductors is respectively by the first resistance, second resistance, as on the time delay inductance of current input terminal when 3rd resistance and the 4th resistance are connected to the diode current flow in parallel with it, the first electric capacity is in series with between two outputs of bridge rectifier, first inductance and the second electric capacity, the two ends of the first inductance are in series with the second inductance, 5th resistance and the 3rd inductance, the intermediate point ground connection of the 5th resistance and the 3rd inductance, the intermediate point of the 5th resistance and the second inductance is connected to the grid of the 5th metal-oxide-semiconductor by the 6th resistance, the drain electrode of the 5th metal-oxide-semiconductor is connected by the drain electrode of the 7th resistance with the 5th metal-oxide-semiconductor, the source electrode of the 5th metal-oxide-semiconductor is by the 8th resistance, 3rd electric capacity and the 4th electric capacity are connected to the drain electrode of the 6th metal-oxide-semiconductor, the source electrode of the 6th metal-oxide-semiconductor is connected to the grid of the 5th metal-oxide-semiconductor by the 9th resistance, 9th resistance passes through connection the tenth resistance as power output end, the grid of the 6th metal-oxide-semiconductor is connected to the output of operational amplifier by the 11 resistance, the positive input of operational amplifier is connected to reference level by the 12 resistance, the reverse input end of operational amplifier is connected to the grid of the 5th metal-oxide-semiconductor.
The beneficial effect adopting technique scheme to bring is: the utility model is by improving original bridge rectifier, metal-oxide-semiconductor in parallel is utilized to reduce tube voltage drop and the power consumption of diode itself, use time delay inductance to carry out time delay to the opening/closing time of metal-oxide-semiconductor simultaneously, avoid metal-oxide-semiconductor grid voltage to reduce and cause metal-oxide-semiconductor close early than diode and disturb the fluctuation of whole bridge rectifier generation current.Through the rectification of bridge rectifier, the direct current signal exported is through the filtration of the first electric capacity, the second electric capacity and the first inductance, the second inductance and the 3rd inductance, carry out buffering by significantly fluctuating in direct current signal to eliminate, spike for the existence in direct current signal disturbs, absorbed by the 5th metal-oxide-semiconductor control the 3rd electric capacity and the 4th electric capacity, then carry out feedback lower than during reference level by the 6th metal-oxide-semiconductor at direct current signal, thus inhibit the interference of spike.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model embodiment.
In figure: R1, the first resistance; R2, the second resistance tube; R3, the 3rd resistance; R4, the 4th resistance; R5, the 5th resistance; R6, the 6th resistance; R7, the 7th resistance; R8, the 8th resistance; R9, the 9th resistance; R10, the tenth resistance; R11, the 11 resistance; R12, the 12 resistance; C1, the first electric capacity; C2, the second electric capacity; C3, the 3rd electric capacity; C4, the 4th electric capacity; D1, the first diode; D2, the second diode; D3, the 3rd diode; D4, the 4th diode; A, operational amplifier; Q1, the first metal-oxide-semiconductor; Q2, the second metal-oxide-semiconductor; Q3, the 3rd metal-oxide-semiconductor; Q4, the 4th metal-oxide-semiconductor; Q5, the 5th metal-oxide-semiconductor; Q6, the 6th metal-oxide-semiconductor; L, time delay inductance; L1, the first inductance; L2, the second inductance; L3, the 3rd inductance; Vcc, reference level.
Embodiment
With reference to Fig. 1, the utility model embodiment comprises the bridge rectifier connecting AC power, bridge rectifier comprises the first diode D1, second diode D2, 3rd diode D3 and the 4th diode D4, the first metal-oxide-semiconductor Q1 is parallel with respectively at four diode two ends, second metal-oxide-semiconductor Q2, 3rd metal-oxide-semiconductor Q3 and the 4th metal-oxide-semiconductor Q4, the drain electrode of each metal-oxide-semiconductor is connected with the positive pole of corresponding diode, the source electrode of each metal-oxide-semiconductor is connected with the negative pole of corresponding diode, two inputs of bridge rectifier are connected with time delay inductance L, the grid of four metal-oxide-semiconductors is respectively by the first resistance R1, second resistance R2, as in the time delay inductance L of current input terminal when 3rd resistance R3 and the 4th resistance R4 is connected to the diode current flow in parallel with it, the first electric capacity C1 is in series with between two outputs of bridge rectifier, first inductance L 1 and the second electric capacity C2, the two ends of the first inductance L 1 are in series with the second inductance L 2, 5th resistance R5 and the 3rd inductance L 3, the intermediate point ground connection of the 5th resistance R5 and the 3rd inductance L 3, the intermediate point of the 5th resistance R5 and the second inductance L 2 is connected to the grid of the 5th metal-oxide-semiconductor Q5 by the 6th resistance R6, the drain electrode of the 5th metal-oxide-semiconductor Q5 is connected with the drain electrode of the 5th metal-oxide-semiconductor Q5 by the 7th resistance R7, the source electrode of the 5th metal-oxide-semiconductor Q5 is by the 8th resistance R8, 3rd electric capacity C3 and the 4th electric capacity C4 is connected to the drain electrode of the 6th metal-oxide-semiconductor Q6, the source electrode of the 6th metal-oxide-semiconductor Q6 is connected to the grid of the 5th metal-oxide-semiconductor Q5 by the 9th resistance R9, 9th resistance R9 passes through connection the tenth resistance R10 as power output end, the grid of the 6th metal-oxide-semiconductor Q6 is connected to the output of operational amplifier A by the 11 resistance R11, the positive input of operational amplifier A is connected to reference level Vcc by the 12 resistance R12, the reverse input end of operational amplifier A is connected to the grid of the 5th metal-oxide-semiconductor Q5.The utility model utilizes metal-oxide-semiconductor in parallel to reduce tube voltage drop and the power consumption of diode itself, use time delay inductance to carry out time delay to the opening/closing time of metal-oxide-semiconductor simultaneously, avoid metal-oxide-semiconductor grid voltage to reduce and cause metal-oxide-semiconductor close early than diode and disturb the fluctuation of whole bridge rectifier generation current.Then the dissimilar interference signal utilizing the filter circuit of follow-up improvement to produce bridge rectifier is respectively carried out buffering and is filtered, and reduces the interference that DC power supply exports.
Wherein, first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4 are 10k Ω, 5th resistance R5 is 7.5k Ω, 6th resistance R6 is 12k Ω, and the 7th resistance R7 is 5k Ω, and the 8th resistance R8 is 15k Ω, 9th resistance R9 is 22k Ω, tenth resistance R10 is 35k Ω, and the 11 resistance R11 is 17k Ω, and the 12 resistance R12 is 8k Ω.First electric capacity C1 and the second electric capacity C2 is 30 μ F, and the 3rd electric capacity C3 is 230 μ F, and the 4th electric capacity C4 is 750 μ F.Time delay inductance L is 45 μ H, and the first inductance L 1 is 20mH, and the second inductance L 2 and the 3rd inductance are 80mH.Reference level Vcc is 24V.
The utility model utilizes 220V AC power as input, exports DC power signal.Pre-payment controller can connect AC power or DC power supply as required, and simple and practical, cost is low.The interference of DC power signal that rectification obtains is little, switching process low in energy consumption.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. the supply unit for pre-payment controller, it is characterized in that: comprise the bridge rectifier connecting AC power, bridge rectifier comprises the first diode (D1), second diode (D2), 3rd diode (D3) and the 4th diode (D4), the first metal-oxide-semiconductor (Q1) is parallel with respectively at four diode two ends, second metal-oxide-semiconductor (Q2), 3rd metal-oxide-semiconductor (Q3) and the 4th metal-oxide-semiconductor (Q4), the drain electrode of each metal-oxide-semiconductor is connected with the positive pole of corresponding diode, the source electrode of each metal-oxide-semiconductor is connected with the negative pole of corresponding diode, two inputs of bridge rectifier are connected with time delay inductance (L), the grid of four metal-oxide-semiconductors is respectively by the first resistance (R1), second resistance (R2), as on the time delay inductance (L) of current input terminal when 3rd resistance (R3) and the 4th resistance (R4) are connected to the diode current flow in parallel with it, the first electric capacity (C1) is in series with between two outputs of bridge rectifier, first inductance (L1) and the second electric capacity (C2), the two ends of the first inductance (L1) are in series with the second inductance (L2), 5th resistance (R5) and the 3rd inductance (L3), the intermediate point ground connection of the 5th resistance (R5) and the 3rd inductance (L3), the intermediate point of the 5th resistance (R5) and the second inductance (L2) is connected to the grid of the 5th metal-oxide-semiconductor (Q5) by the 6th resistance (R6), the drain electrode of the 5th metal-oxide-semiconductor (Q5) is connected by the drain electrode of the 7th resistance (R7) with the 5th metal-oxide-semiconductor (Q5), the source electrode of the 5th metal-oxide-semiconductor (Q5) is by the 8th resistance (R8), 3rd electric capacity (C3) and the 4th electric capacity (C4) are connected to the drain electrode of the 6th metal-oxide-semiconductor (Q6), the source electrode of the 6th metal-oxide-semiconductor (Q6) is connected to the grid of the 5th metal-oxide-semiconductor (Q5) by the 9th resistance (R9), 9th resistance (R9) by connection the tenth resistance (R10) as power output end, the grid of the 6th metal-oxide-semiconductor (Q6) is connected to the output of operational amplifier (A) by the 11 resistance (R11), the positive input of operational amplifier (A) is connected to reference level (Vcc) by the 12 resistance (R12), the reverse input end of operational amplifier (A) is connected to the grid of the 5th metal-oxide-semiconductor (Q5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013231.6U CN204392108U (en) | 2015-01-09 | 2015-01-09 | A kind of supply unit for pre-payment controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013231.6U CN204392108U (en) | 2015-01-09 | 2015-01-09 | A kind of supply unit for pre-payment controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204392108U true CN204392108U (en) | 2015-06-10 |
Family
ID=53364788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520013231.6U Expired - Fee Related CN204392108U (en) | 2015-01-09 | 2015-01-09 | A kind of supply unit for pre-payment controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204392108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306636A (en) * | 2015-10-30 | 2016-02-03 | 努比亚技术有限公司 | Method, circuit and system for improving power supply noise |
-
2015
- 2015-01-09 CN CN201520013231.6U patent/CN204392108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306636A (en) * | 2015-10-30 | 2016-02-03 | 努比亚技术有限公司 | Method, circuit and system for improving power supply noise |
| CN105306636B (en) * | 2015-10-30 | 2020-09-29 | 南京鼎臻自动化科技有限公司 | Method, circuit and system for improving power supply noise |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102843025B (en) | Control circuit, control method, and power supply system for power factor correction (PFC) circuit | |
| CN103746591B (en) | A kind of single-phase non-isolated grid-connected inverter of H6 and modulator approach thereof | |
| CN104283413A (en) | Method for controlling bridgeless PFC circuit and device thereof | |
| CN204272011U (en) | A kind of solar photovoltaic water pump control system | |
| CN201839199U (en) | Bridgeless power factor correcting circuit | |
| CN203941243U (en) | A kind of three-phase electric power open phase testing circuit | |
| CN204392108U (en) | A kind of supply unit for pre-payment controller | |
| CN103956903B (en) | LC parallel resonances are depressured the control method of DC/DC conversion device | |
| CN209497396U (en) | A kind of AC-DC circuit that power switch is preposition | |
| CN104483579A (en) | Switching value acquisition circuit | |
| CN204302420U (en) | A kind of switch quantity acquisition circuit | |
| CN105226925B (en) | A kind of inverse-excitation type single-phase inverter and its control method | |
| CN105429445A (en) | Bidirectional converter for alternating current/direct current microgrid | |
| CN202696527U (en) | Driving circuit of sine-wave variable-frequency synchronous motor | |
| CN204156536U (en) | A kind of hydroelectric station auto-parallel instrument | |
| CN207691525U (en) | A kind of supply unit | |
| CN102570865A (en) | Low-voltage AC-DC (Alternating Current to Direct Current) converter | |
| CN206313656U (en) | Digital non-bridge PFC controls circuit | |
| CN206807284U (en) | A kind of non-bridge PFC circuits | |
| CN205453525U (en) | Novel gasoline engine rectification pressure regulating control circuit | |
| CN205750611U (en) | A kind of regulator control circuit | |
| CN204270090U (en) | A kind of electric voltage regulator program control device | |
| CN204669229U (en) | Digital power current control circuit | |
| CN203326895U (en) | Pulse electroplate power source based on one-chip microcomputer | |
| CN204425197U (en) | For the electromagnetic interference denoising device of former limit sampling LED control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170517 Address after: 071000 No. 81 Tengfei Road, Hebei, Baoding Patentee after: Baoding City Semeureka Electric Power Technology Co., Ltd. Address before: 071000 Hebei province Baoding City Airport Road No. 81 Baoding Shuimu Electrical Equipment Co. Ltd. Patentee before: Li Zhigang |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20180109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |