CN202135070U - Dual-voltage capacitance-resistance voltage-reduction energy saving circuit - Google Patents
Dual-voltage capacitance-resistance voltage-reduction energy saving circuit Download PDFInfo
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- CN202135070U CN202135070U CN201120282006U CN201120282006U CN202135070U CN 202135070 U CN202135070 U CN 202135070U CN 201120282006 U CN201120282006 U CN 201120282006U CN 201120282006 U CN201120282006 U CN 201120282006U CN 202135070 U CN202135070 U CN 202135070U
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Abstract
The utility model relates to a dual-voltage capacitance-resistance voltage-reduction energy saving circuit, which comprises a capacitance-resistance voltage-reduction circuit connected with an input power supply, a rectifying and filtering circuit connected with the output end of the capacitance-resistance voltage-reduction circuit, a voltage stabilizing circuit connected with the rectifying and filtering circuit, and a load connected with the voltage stabilizing circuit, wherein a voltage detection circuit used for detecting voltage amount is connected between the positive terminal and the negative terminal of the input power supply, the output end of the voltage detection circuit is connected with a current control circuit, the current control circuit comprises a controllable silicon Q01, and the anode and the cathode of the controllable silicon Q01 are respectively connected with the two power supply input ends of the rectifying and filtering circuit. With the voltage detection circuit and the current control circuit, output direct current values are same during a high-voltage power supply input and a low-voltage power supply input, thus the circuit generates no residual current, which causes extra dissipation, so the dual-voltage capacitance-resistance voltage-reduction energy saving circuit can reduce energy consumption effectively.
Description
(1) technical field
The utility model relates to a kind of voltage conversion circuit that interchange is converted into direct current.
(2) background technology
In recent years, the resistance-capacitance depressurization circuit because have that cost is low, volume is little, lightweight characteristics and be widely used in adopting in the small-power D.C. regulated power supply electronic equipment powered.In order to improve the versatility of equipment, it is general that a lot of electronic equipments all are designed to two kinds of supply voltages (the following pair voltages that abbreviate as).
Learn that according to the resistance-capacitance depressurization principle direct current size depends on the capacity of supply frequency, supply voltage and electric capacity.Under the certain situation of supply frequency, supply voltage is high more, and the electric current of generation is big more; The capacity of electric capacity is high more, and the electric current of generation is big more.Can learn that the capacity of electric capacity is to choose according to the DC load power supply needs that under lower supply voltage, can satisfy the back, otherwise DC load can't operate as normal under lower supply voltage.Yet in case adopt higher supply voltage when (magnitude of voltage is about 2 times of low-voltage), the electric current that this electric capacity produces is except providing the DC load power supply, and some residual current can't be eliminated.This class of electronic devices in the market all is to rely on voltage-stabiliser tube or other DC load to shunt.The consequence of this phenomenon is to have increased power consumption, and the temperature of electronic equipment internal has increased potential safety hazard than higher.
(3) summary of the invention
In order to overcome the above-mentioned deficiency of prior art, the utility model provides a kind of pair of voltage to change the circuit with energy-saving effect automatically.
The technical scheme that the utility model solves its technical problem is:
The energy-saving circuit of a kind of pair of voltage-type resistance-capacitance depressurization formula; Comprise the resistance-capacitance depressurization circuit that connects the input power supply; The current rectifying and wave filtering circuit that connects the resistance-capacitance depressurization circuit output end, the voltage stabilizing circuit of connection current rectifying and wave filtering circuit is with the load that is connected voltage stabilizing circuit; Connect one between the positive and negative two ends of described input power supply and be used for detecting voltage voltage detecting circuit just; The output of described voltage detecting circuit connects a current control circuit, and described current control circuit includes a controllable silicon Q01, and the positive pole of described controllable silicon Q01 and negative pole are connected two power inputs of current rectifying and wave filtering circuit respectively.
As preferably, current rectifying and wave filtering circuit is a bridge rectifier filter circuit.
As preferably; The resistance-capacitance depressurization circuit comprises current-limiting resistance R2 and the decompression capacitor C1 that is connected in series; Described decompression capacitor C1 is connected in parallel to R1; Described voltage detecting circuit comprises resistance R 02, resistance R 01, the diode D01 that is connected in series, and described resistance R 02 is connected in parallel to electrochemical capacitor C01, and described current control circuit also comprises a voltage-stabiliser tube D02; The negative pole of described voltage-stabiliser tube D02 is connected between R01 and the R02; The positive pole of described voltage-stabiliser tube D02 connects the positive pole and the control utmost point of controllable silicon Q01, and described bridge rectifier filter circuit comprises rectifier bridge heap DB1 and electrochemical capacitor C2, and described voltage stabilizing circuit comprises the voltage-stabiliser tube ZW1 that connects electrochemical capacitor C2.
During work, the voltage that inserts when circuit is lower, and the detected signal deficiency of voltage detecting circuit is so that current control circuit work, and promptly controllable silicon Q01 is in off-state, and entire circuit is equivalent to common bridge rectifier.
When the voltage of circuit access was higher, the detected signal of voltage detecting circuit was bigger, and because the unidirectional conduction of controllable silicon Q01; Controllable silicon Q01 is only in the half period conducting, and half period is broken off in addition, and controllable silicon Q01 is when conducting; Electric current is without bridge rectifier filter circuit and voltage stabilizing circuit, i.e. load is output not, then in the whole cycle; Load has only half period that output is arranged; Then the direct current of output only be the half the of whole cycle output, so import at high voltage under the situation of (low-voltage 2 times), the direct current that the direct current of generation produces during with low voltage power supply is identical.
The beneficial effect of the utility model is: the utility model is through voltage detecting circuit and current control circuit; When high-voltage power supply is imported and low power supply power supply when input; The direct current of output is identical; Then circuit can not produce residual current, thereby produces extra loss, and the utility model can effectively cut down the consumption of energy.
(4) description of drawings
Fig. 1 is the circuit structure block diagram of the utility model.
Fig. 2 is the electrical block diagram of the utility model.
(5) embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
Like Fig. 1, shown in 2; The energy-saving circuit of a kind of pair of voltage-type resistance-capacitance depressurization formula; Comprise connecting input power supply 1, resistance-capacitance depressurization circuit 3, resistance-capacitance depressurization circuit 3 include current-limiting resistance R2, decompression capacitor C1, resistance R 1; Current-limiting resistance R2 and decompression capacitor C1 are connected in series, and resistance R 1 is connected in parallel with decompression capacitor C1.The output of resistance-capacitance depressurization circuit 3 connects current rectifying and wave filtering circuit 5; Current rectifying and wave filtering circuit 5 is a bridge rectifier filter circuit, and current rectifying and wave filtering circuit 5 includes rectifier bridge heap DB1, electrochemical capacitor C2; The output of current rectifying and wave filtering circuit 5 connects voltage stabilizing circuit 6; Voltage stabilizing circuit 6 comprises voltage-stabiliser tube ZW1, the voltage-stabiliser tube ZW1 electrochemical capacitor C2 that is connected in parallel, and the output of voltage stabilizing circuit 6 connects load R.Positive and negative two ends at input power supply 1 are connected with voltage detecting circuit 2, and voltage detecting circuit 2 comprises resistance R 02, resistance R 01, the diode D01 of being connected in series, and resistance R 02 is connected in parallel to electrochemical capacitor C01.The output of voltage detecting circuit 2 connects a current control circuit 4; Current control circuit includes voltage-stabiliser tube D02 and controllable silicon Q01; The negative pole of voltage-stabiliser tube D02 is connected between resistance R 02 and the resistance R 01; The anodal positive pole and the control utmost point that connects controllable silicon Q01, the positive pole of controllable silicon Q01 and negative pole are connected two power inputs of current rectifying and wave filtering circuit 5 respectively.
During work, the voltage that inserts when circuit is lower, and the detected signal deficiency of voltage detecting circuit is so that current control circuit work, and promptly controllable silicon Q01 is in off-state, and entire circuit is equivalent to common bridge rectifier.
When the voltage of circuit access was higher, the detected signal of voltage detecting circuit was bigger, and because the unidirectional conduction of controllable silicon Q01; Controllable silicon Q01 is only in the half period conducting, and half period is broken off in addition, and controllable silicon Q01 is when conducting; Electric current is without bridge rectifier filter circuit and voltage stabilizing circuit, i.e. load is output not, then in the whole cycle; Load has only half period that output is arranged; Then the direct current of output only be the half the of whole cycle output, so under the situation that high voltage is imported, the direct current that the direct current of generation produces during with low voltage power supply is identical.
Claims (3)
1. the energy-saving circuit of two voltage-type resistance-capacitance depressurization formulas; Comprise the resistance-capacitance depressurization circuit that connects the input power supply; The current rectifying and wave filtering circuit that connects the resistance-capacitance depressurization circuit output end, the voltage stabilizing circuit of connection current rectifying and wave filtering circuit is with the load that is connected voltage stabilizing circuit; It is characterized in that: connect one between the positive and negative two ends of described input power supply and be used for detecting voltage voltage detecting circuit just; The output of described voltage detecting circuit connects a current control circuit, and described current control circuit includes a controllable silicon Q01, and the positive pole of described controllable silicon Q01 and negative pole are connected two power inputs of current rectifying and wave filtering circuit respectively.
2. according to the energy-saving circuit of claim described 1 described a kind of pair of voltage-type resistance-capacitance depressurization formula, it is characterized in that: described current rectifying and wave filtering circuit is a bridge rectifier filter circuit.
3. the energy-saving circuit of a kind of pair of voltage-type resistance-capacitance depressurization formula according to claim 2; It is characterized in that: described resistance-capacitance depressurization circuit comprises current-limiting resistance R2 and the decompression capacitor C1 that is connected in series; Described decompression capacitor C1 is connected in parallel to R1; Described voltage detecting circuit comprises resistance R 02, resistance R 01, the diode D01 that is connected in series, and described resistance R 02 is connected in parallel to electrochemical capacitor C01, and described current control circuit also comprises a voltage-stabiliser tube D02; The negative pole of described voltage-stabiliser tube D02 is connected between R01 and the R02; The positive pole of described voltage-stabiliser tube D02 connects the positive pole and the control utmost point of controllable silicon Q01, and described bridge rectifier filter circuit comprises rectifier bridge heap DB1 and electrochemical capacitor C2, and described voltage stabilizing circuit comprises the voltage-stabiliser tube ZW1 that connects electrochemical capacitor C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120282006U CN202135070U (en) | 2011-08-03 | 2011-08-03 | Dual-voltage capacitance-resistance voltage-reduction energy saving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120282006U CN202135070U (en) | 2011-08-03 | 2011-08-03 | Dual-voltage capacitance-resistance voltage-reduction energy saving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202135070U true CN202135070U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120282006U Expired - Lifetime CN202135070U (en) | 2011-08-03 | 2011-08-03 | Dual-voltage capacitance-resistance voltage-reduction energy saving circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN202135070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107716A (en) * | 2013-01-25 | 2013-05-15 | 深圳和而泰智能控制股份有限公司 | Resistive and capacitive voltage reducing device |
-
2011
- 2011-08-03 CN CN201120282006U patent/CN202135070U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107716A (en) * | 2013-01-25 | 2013-05-15 | 深圳和而泰智能控制股份有限公司 | Resistive and capacitive voltage reducing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |
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| CX01 | Expiry of patent term |