CN203104286U - Current maintenance circuit - Google Patents
Current maintenance circuit Download PDFInfo
- Publication number
- CN203104286U CN203104286U CN 201320077659 CN201320077659U CN203104286U CN 203104286 U CN203104286 U CN 203104286U CN 201320077659 CN201320077659 CN 201320077659 CN 201320077659 U CN201320077659 U CN 201320077659U CN 203104286 U CN203104286 U CN 203104286U
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- Prior art keywords
- diode
- resistance
- rectifier bridge
- utility
- model
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- 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
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Abstract
The utility model discloses a current maintenance circuit which comprises a resistor and a capacitor that are connected with each other in series, wherein the resistor and the capacitor are respectively connected with a rectifier bridge; and the rectifier bridge comprises a first diode, a second diode, a third diode and a fourth diode which are sequentially connected. By adopting the current maintenance circuit, the load current which is more balanced than that only loaded by the resistor can be generated, and the charging and discharging current that is more balanced than that only loaded by the capacitor is also generated.
Description
Technical field
The utility model relates to a kind of holding circuit, particularly relates to a kind of electric current holding circuit.
Background technology
Existing AC power is through after the rectification of rectifier bridge, and unbalanced by the load current that produces behind the resistance, also unbalanced by the charging and discharging currents behind the electric capacity, the electric capacity internal resistance is little, and big power consumption can't be provided, and unbalanced charging and discharging currents also can influence electrical property.
The utility model content
Technical problem to be solved in the utility model provides a kind of electric current holding circuit, and it produces ratio only with the more balanced load current of ohmic load, produces ratio only with the more balanced charging and discharging currents of capacitive load.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of electric current holding circuit, it is characterized in that it comprises resistance and electric capacity, and resistance and capacitances in series, resistance, electric capacity all are connected with a rectifier bridge.
Preferably, described rectifier bridge comprises first diode, second diode, the 3rd diode and the 4th diode that connects successively.
Preferably, the resistance of described resistance is 560 ohm.
Preferably, described rectifier bridge also is connected with a protective tube.
Positive progressive effect of the present utility model is: the utility model produces ratio only with the more balanced load current of ohmic load, produces ratio only with the more balanced charging and discharging currents of capacitive load, and can not influence electrical property.
Description of drawings
Fig. 1 is the circuit diagram of a kind of electric current holding circuit of the utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As shown in Figure 1, a kind of electric current holding circuit of the utility model comprises resistance R and capacitor C, and resistance R is connected with capacitor C, and resistance R, capacitor C all are connected with a rectifier bridge.Rectifier bridge comprises the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4 that connects successively.The resistance of resistance R is 560 ohm.Rectifier bridge also is connected with a protective tube F.
AC power inserts rectifier bridge through behind the protective tube, through the positive half cycle sinuous pulsation direct voltage of output after the rectification of rectifier bridge, this voltage is added on the utility model electric current holding circuit, generation with the more balanced load current of ohmic load, produces ratio only with the more balanced charging and discharging currents of capacitive load more than only.The utility model electric current holding circuit is used for the static current of lcd coupling of different appliance chambers, in order to comparatively balanced level and smooth load current and power consumption to be provided, such as being used for the appliance circuit that some do not allow output open circuit or have minimum output current, power consumption to require, concrete as AC control circuit electrical equipment such as flyback flyback transformation, the non-resistive light-adjusting and speed-adjustings of controllable silicon.
Those skilled in the art can carry out various remodeling and change to the utility model.Therefore, the utility model has covered various remodeling and the change in the scope that falls into appending claims and equivalent thereof.
Claims (4)
1. an electric current holding circuit is characterized in that, it comprises resistance and electric capacity, resistance and capacitances in series, and resistance, electric capacity all are connected with a rectifier bridge.
2. a kind of electric current holding circuit as claimed in claim 1 is characterized in that, described rectifier bridge comprises first diode, second diode, the 3rd diode and the 4th diode that connects successively.
3. a kind of electric current holding circuit as claimed in claim 1 is characterized in that the resistance of described resistance is 560 ohm.
4. a kind of electric current holding circuit as claimed in claim 1 is characterized in that, described rectifier bridge also is connected with a protective tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320077659 CN203104286U (en) | 2013-02-21 | 2013-02-21 | Current maintenance circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320077659 CN203104286U (en) | 2013-02-21 | 2013-02-21 | Current maintenance circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203104286U true CN203104286U (en) | 2013-07-31 |
Family
ID=48855661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320077659 Expired - Fee Related CN203104286U (en) | 2013-02-21 | 2013-02-21 | Current maintenance circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203104286U (en) |
-
2013
- 2013-02-21 CN CN 201320077659 patent/CN203104286U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130731 Termination date: 20150221 |
|
| EXPY | Termination of patent right or utility model |