CN202025031U - Single-phase low-power carrier consumption-controlled intelligent electric energy meter based on DC-DC - Google Patents
Single-phase low-power carrier consumption-controlled intelligent electric energy meter based on DC-DC Download PDFInfo
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- CN202025031U CN202025031U CN2011200474673U CN201120047467U CN202025031U CN 202025031 U CN202025031 U CN 202025031U CN 2011200474673 U CN2011200474673 U CN 2011200474673U CN 201120047467 U CN201120047467 U CN 201120047467U CN 202025031 U CN202025031 U CN 202025031U
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- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 21
- 238000013519 translation Methods 0.000 claims description 13
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Abstract
The utility model relates to a single-phase carrier electric energy meter, and provides a single-phase low-power carrier consumption-controlled intelligent electric energy meter using the power supply scheme of the DC-DC. The electric energy meter includes a power supply module, a one-chip microcomputer central processing unit, a carrier communication module, and an electric energy meter metering module. The power supply module includes a protective circuit, a transformer unit, a half wave rectifying circuit, a filtering voltage stabilizing circuit, a full wave rectifying circuit, a filter circuit, and a DC-DC transfer circuit. The power supply part of the electric energy meter carrier communication module of the utility model adopts the scheme of integrating the full wave rectification principle with the DC-DC transformation, thus effectively increasing the power supply efficiency; at the same time, the power supply part of the metering module adopts the half wave rectification principle, thus greatly reducing the power consumption of the entire electric energy meter. The requirement of energy saving and environmental protection is satisfied, and the developing trend of energy saving and consumption reduction of the electric energy meter is also met.
Description
Technical field
The utility model relates to a kind of single-phase carrier electric energy meter, and particularly a kind of power source design uses the single-phase low-power consumption carrier wave of DC-DC to take the control intelligent electric energy meter.
Background technology
At present in the power source design of most of single-phase carrier electric energy meters, transformer scheme is high with its stability, and isolation effect is good etc., and advantage accounts for dominant position, but generally power-efficient is not high, and power consumption is bigger, can not adapt to modern society to the electric energy meter energy conservation and environment protection.
Summary of the invention
The purpose of this utility model is exactly in order to overcome above-mentioned the deficiencies in the prior art part, and provide a kind of single-phase low-power consumption carrier wave expense to control intelligent electric energy meter based on DC-DC, it is guaranteeing under the single-phase condition of taking the original performance of control carrier electric energy meter, can effectively improve power-efficient, reduce the oneself power consumption of electric energy meter, satisfy energy conservation and environment protection.
The purpose of this utility model realizes by following technical measures: based on the single-phase low-power consumption carrier wave expense control intelligent electric energy meter of DC-DC, it comprises power module, single-chip microcomputer CPU (central processing unit), carrier communication module and electric energy meter metering module, and its described power module comprises holding circuit, transformer unit, half-wave rectifying circuit, filter regulator circuit, full-wave rectifying circuit, filtering circuit and DC-DC translation circuit; The output terminal of described holding circuit and the input end of transformer unit link, and the output terminal of transformer unit links with the input end of half-wave rectifying circuit and full-wave rectifying circuit respectively; The output terminal of half-wave rectifying circuit and the input end of filter regulator circuit link, and filter regulator circuit output terminal and electric energy meter metering module link; The output terminal of full-wave rectifying circuit links through the input end of filtering circuit and DC-DC translation circuit, and DC-DC translation circuit output terminal and carrier communication module link.
In technique scheme, described DC-DC translation circuit comprises capacitor C 1, capacitor C 2, capacitor C 3, inductance L 1, resistance R 1, resistance R 2, resistance R 3, diode D1, diode D2 and DC-DC chip U1; This circuit Input voltage terminal is the VDD_ZL end, and described capacitor C 1 is connected in parallel between VDD_ZL end and the GND end; 1 pin of described DC-DC chip U1 is connected to the negative pole of diode D2, the positive pole of diode D2 is connected to output voltage terminal VCC, 1 pin of DC-DC chip U1 is connected to 5 pin of DC-DC chip U1 through diode D2 and resistance R 2, and 1 foot meridian capacitor C3 and the inductance L 1 of described DC-DC chip U1 are connected to output voltage terminal VCC; 2 pin of described DC-DC chip U1 are connected to the VDD_ZL end; 3 pin of described DC-DC chip U1 are connected to output voltage terminal VCC through inductance L 1, and 3 pin of DC-DC chip U1 are connected to the negative pole of diode D1, and the positive pole of diode D1 is connected to the GND end; 4 pin of described DC-DC chip U1 are connected to the GND end; 5 pin of described DC-DC chip U1 are connected to the GND end through resistance R 3, and 5 pin are connected to output voltage terminal VCC through resistance R 2; 7 pin of described DC-DC chip U1 are connected to the VDD_ZL end through resistance R 1; 6 pin and 8 pin of described DC-DC chip U1 are unsettled; Described capacitor C 2 is connected in parallel between output voltage terminal VCC and the GND end.
In technique scheme, described DC-DC chip U1 is the BL8516 chip.
The beneficial effects of the utility model are: the scheme that electric energy meter carrier communication module power pack application full-wave rectification principle and DC-DC conversion combine, effectively raise power-efficient, the metering module power pack is used the half-wave rectification principle simultaneously, greatly reduce Overall Power Consumption, reach energy conservation and environment protection, met the energy-saving and cost-reducing development trend of electric energy meter.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model based on the intelligent carrier electric energy meter of single-phase low-power consumption expense control of DC-DC.
Fig. 2 is the circuit theory diagrams of power module among the utility model embodiment.
Fig. 3 is a DC-DC translation circuit connection layout among the utility model embodiment.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, present embodiment provides a kind of single-phase low-power consumption carrier wave expense control intelligent electric energy meter based on DC-DC, it comprises power module, single-chip microcomputer CPU (central processing unit), carrier communication module and electric energy meter metering module, power module respectively with the power supply that links of single-chip microcomputer CPU (central processing unit), carrier communication module and electric energy meter metering module.
As shown in Figure 2, described power module comprises holding circuit, transformer unit, half-wave rectifying circuit, filter regulator circuit, full-wave rectifying circuit, filtering circuit and DC-DC translation circuit; The output terminal of described holding circuit and the input end of transformer unit link, and the output terminal of transformer unit links with the input end of half-wave rectifying circuit and full-wave rectifying circuit respectively; The output terminal of half-wave rectifying circuit and the input end of filter regulator circuit link, and filter regulator circuit output terminal and electric energy meter metering module link; The output terminal of full-wave rectifying circuit links through the input end of filtering circuit and DC-DC translation circuit, and DC-DC translation circuit output terminal and carrier communication module link.
As shown in Figure 3, in the above-described embodiments, described DC-DC translation circuit comprises capacitor C 1, capacitor C 2, capacitor C 3, inductance L 1, resistance R 1, resistance R 2, resistance R 3, diode D1, diode D2 and DC-DC chip U1.Wherein DC-DC chip U1 is the BL8516 chip.
This circuit Input voltage terminal is the VDD_ZL end, the DC voltage of input 12V ~ 18V, and described capacitor C 1 is connected in parallel between VDD_ZL end and the GND end as filter capacitor; 1 pin of described DC-DC chip U1 is connected to the negative pole of diode D2, the positive pole of diode D2 is connected to output voltage terminal VCC, 1 pin of DC-DC chip U1 is connected to 5 pin of DC-DC chip U1 through diode D2 and resistance R 2, and 1 foot meridian capacitor C3 and the inductance L 1 of described DC-DC chip U1 are connected to output voltage terminal VCC; 2 pin of described DC-DC chip U1 are connected to the VDD_ZL end; 3 pin of described DC-DC chip U1 are connected to output voltage terminal VCC through inductance L 1, and 3 pin of DC-DC chip U1 are connected to the negative pole of diode D1, and the positive pole of diode D1 is connected to the GND end; 4 pin of described DC-DC chip U1 are connected to the GND end; 5 pin of described DC-DC chip U1 are connected to the GND end through resistance R 3, and 5 pin are connected to output voltage terminal VCC through resistance R 2; 7 pin of described DC-DC chip U1 are connected to the VDD_ZL end through resistance R 1; 6 pin and 8 pin of described DC-DC chip U1 are unsettled; Described capacitor C 2 is connected in parallel between output voltage terminal VCC and the GND end as filter capacitor.
In the foregoing description, described diode D1 is a fly-wheel diode, is after the switching and rectifying device is closed, and the diode of bleed-off circuit is provided for load current; Described capacitor C 3 is that starting capacitance and diode D2 one are used from and raise input voltage.Resistance R 2 and resistance R 3 are formed backfeed loop together as feedback resistance.
Claims (3)
1. the single-phase low-power consumption carrier wave based on DC-DC takes the control intelligent electric energy meter, comprise power module, single-chip microcomputer CPU (central processing unit), carrier communication module and electric energy meter metering module, it is characterized in that: described power module comprises holding circuit, transformer unit, half-wave rectifying circuit, filter regulator circuit, full-wave rectifying circuit, filtering circuit and DC-DC translation circuit; The output terminal of described holding circuit and the input end of transformer unit link, and the output terminal of transformer unit links with the input end of half-wave rectifying circuit and full-wave rectifying circuit respectively; The output terminal of half-wave rectifying circuit and the input end of filter regulator circuit link, and filter regulator circuit output terminal and electric energy meter metering module link; The output terminal of full-wave rectifying circuit links through the input end of filtering circuit and DC-DC translation circuit, and DC-DC translation circuit output terminal and carrier communication module link.
2. the single-phase low-power consumption carrier wave based on DC-DC according to claim 1 takes the control intelligent electric energy meter, and it is characterized in that: described DC-DC translation circuit comprises capacitor C 1, capacitor C 2, capacitor C 3, inductance L 1, resistance R 1, resistance R 2, resistance R 3, diode D1, diode D2 and DC-DC chip U1; This circuit Input voltage terminal is the VDD_ZL end, and described capacitor C 1 is connected in parallel between VDD_ZL end and the GND end; 1 pin of described DC-DC chip U1 is connected to the negative pole of diode D2, the positive pole of diode D2 is connected to output voltage terminal VCC, 1 pin of DC-DC chip U1 is connected to 5 pin of DC-DC chip U1 through diode D2 and resistance R 2, and 1 foot meridian capacitor C3 and the inductance L 1 of described DC-DC chip U1 are connected to output voltage terminal VCC; 2 pin of described DC-DC chip U1 are connected to the VDD_ZL end; 3 pin of described DC-DC chip U1 are connected to output voltage terminal VCC through inductance L 1, and 3 pin of DC-DC chip U1 are connected to the negative pole of diode D1, and the positive pole of diode D1 is connected to the GND end; 4 pin of described DC-DC chip U1 are connected to the GND end; 5 pin of described DC-DC chip U1 are connected to the GND end through resistance R 3, and 5 pin are connected to output voltage terminal VCC through resistance R 2; 7 pin of described DC-DC chip U1 are connected to the VDD_ZL end through resistance R 1; 6 pin and 8 pin of described DC-DC chip U1 are unsettled; Described capacitor C 2 is connected in parallel between output voltage terminal VCC and the GND end.
3. the single-phase low-power consumption carrier wave based on DC-DC according to claim 2 takes the control intelligent electric energy meter, and it is characterized in that: described DC-DC chip U1 is the BL8516 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200474673U CN202025031U (en) | 2011-02-25 | 2011-02-25 | Single-phase low-power carrier consumption-controlled intelligent electric energy meter based on DC-DC |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200474673U CN202025031U (en) | 2011-02-25 | 2011-02-25 | Single-phase low-power carrier consumption-controlled intelligent electric energy meter based on DC-DC |
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| CN202025031U true CN202025031U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200474673U Expired - Fee Related CN202025031U (en) | 2011-02-25 | 2011-02-25 | Single-phase low-power carrier consumption-controlled intelligent electric energy meter based on DC-DC |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076473A (en) * | 2012-12-17 | 2013-05-01 | 宁波三星电气股份有限公司 | Electric energy meter |
| CN105742737A (en) * | 2016-04-13 | 2016-07-06 | 江苏峰谷源储能技术研究院有限公司 | Convenient 24V and 9.6Ah lithium iron phosphate battery pack |
| CN105789689A (en) * | 2016-04-13 | 2016-07-20 | 江苏峰谷源储能技术研究院有限公司 | Multifunctional 24V and 9.6Ah lithium iron phosphate battery pack |
| CN106787833A (en) * | 2016-12-13 | 2017-05-31 | 浙江恒业电子有限公司 | A kind of power circuit with DC/DC modular converters |
-
2011
- 2011-02-25 CN CN2011200474673U patent/CN202025031U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076473A (en) * | 2012-12-17 | 2013-05-01 | 宁波三星电气股份有限公司 | Electric energy meter |
| CN105742737A (en) * | 2016-04-13 | 2016-07-06 | 江苏峰谷源储能技术研究院有限公司 | Convenient 24V and 9.6Ah lithium iron phosphate battery pack |
| CN105789689A (en) * | 2016-04-13 | 2016-07-20 | 江苏峰谷源储能技术研究院有限公司 | Multifunctional 24V and 9.6Ah lithium iron phosphate battery pack |
| CN105742737B (en) * | 2016-04-13 | 2018-07-03 | 江苏峰谷源储能技术研究院有限公司 | Convenient type 24V and 9.6Ah ferric phosphate lithium cell group |
| CN105789689B (en) * | 2016-04-13 | 2018-07-03 | 江苏峰谷源储能技术研究院有限公司 | Multi-functional 24V and 9.6Ah ferric phosphate lithium cells group |
| CN106787833A (en) * | 2016-12-13 | 2017-05-31 | 浙江恒业电子有限公司 | A kind of power circuit with DC/DC modular converters |
| CN106787833B (en) * | 2016-12-13 | 2023-08-29 | 浙江恒业电子股份有限公司 | Power supply circuit with DC/DC conversion module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20150225 |
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| EXPY | Termination of patent right or utility model |