CN201898451U - Multi-stage capacitor voltage reduction power supply circuit - Google Patents
Multi-stage capacitor voltage reduction power supply circuit Download PDFInfo
- Publication number
- CN201898451U CN201898451U CN2010206166968U CN201020616696U CN201898451U CN 201898451 U CN201898451 U CN 201898451U CN 2010206166968 U CN2010206166968 U CN 2010206166968U CN 201020616696 U CN201020616696 U CN 201020616696U CN 201898451 U CN201898451 U CN 201898451U
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- dropping
- voltage
- capacitor voltage
- 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
Images
Abstract
The utility model relates to a multi-stage capacitor voltage reduction power supply circuit and adopts a multi-stage capacitor to overcome the shortcomings that a voltage reduction circuit has large consumption and low efficiency resulted from adopting the common capacitor voltage reduction to convert high voltage of a power supply circuit into low voltage even through the cost is lower. In the multi-stage capacitor voltage reduction power supply circuit, an input power supply is serially connected with a first capacitor voltage reduction circuit, the first capacitor voltage reduction circuit is in series connection with a voltage stabilizing circuit, the voltage stabilizing circuit is serially connected with a load end, at least one second capacitor voltage reduction circuit is serially connected with the first capacitor voltage reduction circuit, and a switching circuit is further serially connected with the second capacitor voltage reduction circuit. The multi-stage capacitor voltage reduction power supply circuit is mainly used in small electrical appliances.
Description
Technical field
The utility model system is meant the power circuit with capacity voltage dropping circuit more than two sections especially relevant for a kind of multisection type capacitor voltage-dropping power supply circuit.
Background technology
Press, at present general known reduction voltage circuit is to use following four kinds of modes: utilize a. switched-mode power supply b. transformer c. resistance d. capacitance decompression, it mainly is that high voltage for can be with input the time converts low-voltage to for output, wherein for above-mentioned four kinds of modes:
Though the switched-mode power supply reduction voltage circuit can reach the standard of EUP instruction energy loss when standby, its cost is higher; The cost of transformer reduction voltage circuit is also high; Though resistance drop volt circuit cost is lower, hot easily in use, and then its life-span is reduced easily; Further see also shown in Figure 4, be known capacity voltage dropping circuit, the input power supply A, a capacity voltage dropping circuit B, a voltage stabilizing circuit C and the load end D that comprise mutual series connection, but use one group of capacity voltage dropping circuit B for the high heavy duty of power consumption, big and the inefficient shortcoming of loss can be caused, and the standard of EUP instruction energy loss when standby can't be reached.
The utility model content
The whence this because the disappearance of known reduction voltage circuit, so the utility model provides a kind of energy-conservation and voltage-dropping power supply circuit, particularly pointer that price is lower capacity voltage dropping circuit to be made the power circuit of improveing.
Be noted that, the utility model is a kind of multisection type capacitor voltage-dropping power supply circuit, system is provided with an input power supply, this input power supply one first capacity voltage dropping circuit of connecting, this first capacity voltage dropping circuit is connected serially to a load end again, and on this first capacity voltage dropping circuit at least one second capacity voltage dropping circuit in parallel, this second capacity voltage dropping circuit switching circuit of connecting again.
Further, this switching circuit comprises an IC wafer tandem one electric crystal, and wherein this IC wafer more comprises a near-infrafed photodiodes and one or three utmost point thyristors.
Further, the voltage stabilizing circuit of more connecting between this first capacity voltage dropping circuit and this load end.
Further, this voltage stabilizing circuit includes the bridge rectifier that resistance series connection one is made up of four diodes, and a Zener diode in parallel (zener diode) behind this bridge rectifier is again in this Zener diode (zener diode) back at least one filter capacitor in parallel.
Further, this first capacity voltage dropping circuit and second capacity voltage dropping circuit system includes a resistance electric capacity in parallel respectively.
The utlity model has following advantage:
1. it is lower to use capacity voltage dropping circuit to reach the cost of step-down effect in voltage-dropping power supply circuit.
2. it is hot to use capacity voltage dropping circuit to be not easy, and wherein each electronic component can increase the service life in this capacity voltage dropping circuit.
3. efficient and the loss of using a plurality of capacity voltage dropping circuits parallel with one another can significantly improve whole power circuit are less.
4. the multisection type capacitor voltage-dropping power supply circuit can use single capacity voltage dropping circuit when underload; And during heavy duty, use two groups of capacity voltage dropping circuits, to reach effect of saving energy.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model.
Fig. 2 is a circuit diagram of the present utility model.
Fig. 3 is a functional block diagram of the present utility model.
Fig. 4 is the circuit diagram of known capacitance decompression.
Description of reference numerals:
(1) input power supply
(2) first capacity voltage dropping circuits
(3) second capacity voltage dropping circuits
(4) switching circuit
(5) voltage stabilizing circuit
(6) load end
(A) input power supply (B) capacity voltage dropping circuit
(C) voltage stabilizing circuit (D) load end
(C1) electric capacity (C2) electric capacity
(C3) electric capacity (C4) electric capacity
(R1) resistance (R2) resistance
(R3) resistance (R4) resistance
(U1) IC wafer (Q1) electric crystal.
Embodiment
Comprehensive above-mentioned technical characterictic, the main effect of the utility model multisection type capacitor voltage-dropping power supply circuit can present in following embodiment is clear.
At first, see also Figure 1 and Figure 2, the utility model is a kind of multisection type capacitor voltage-dropping power supply circuit, it is to be provided with an input power supply 1, this input power supply 1 is to be an alternating current in the present embodiment, this input power supply 1 series connection one first capacity voltage dropping circuit 2, this first capacity voltage dropping circuit 2 more includes a resistance R 1 capacitor C 1 in parallel; And these first capacity voltage dropping circuit, 2 one second capacity voltage dropping circuits 3 earlier in parallel, this second capacity voltage dropping circuit 3 switching circuit 4 of connecting again, this first capacity voltage dropping circuit 2 and second capacity voltage dropping circuit 3 voltage stabilizing circuit 5 of connecting again, this second capacity voltage dropping circuit 3 includes a resistance R 4 capacitor C 2 in parallel, the resistance R 3 of after this resistance R 4 these capacitor C 2 in parallel, connecting again, and by these resistance R 3 series connection one IC wafer U1, the electric crystal Q1 and this IC wafer U1 connects again, wherein aforementioned resistance R3, IC wafer U1 and electric crystal Q1 then form the switching circuit 4 in this capacity voltage dropping circuit 3, and IC wafer U1 more includes a near-infrafed photodiodes and one or three utmost point thyristors, this voltage stabilizing circuit 5 more includes a resistance R 2 and connects one by four diode D1, D2, the bridge rectifier that D3 and D4 formed, alternating current when this bridge rectifier can make input converts direct current to for output, and behind bridge rectifier, connect a Zener diode (zener diode), this Zener diode (zener diode) is mainly used in burning voltage, alternating current during aforementioned input converts direct current to behind bridge rectifier, and then utilize Zener diode (zener diode) to do the action of burning voltage, make that output voltage values can be not excessive and burn, again in Zener diode (zener diode) back and connect a capacitor C 3 and a capacitor C 4; At last, again by this voltage stabilizing circuit 5 series connection one load end 6.
During use, when the load of this load end 6 was less, then whole power circuit power consumption stream was little, the conducting that can not be triggered of the electric crystal Q1 in the switching circuit 4 of this second capacity voltage dropping circuit 3; If when the load of this load end 6 is big, then whole power circuit power consumption rheology is big, if load is greatly when this first capacity voltage dropping circuit 2 all can't provide enough electric current, at this moment, originally circuit can send a controlling signal to the switching circuit 4 of this second capacity voltage dropping circuit 3 for triggering, and then make electric crystal Q1 conducting in this switching circuit 4, this electric crystal Q1 conducting will make between this second capacity voltage dropping circuit 3 and this first capacity voltage dropping circuit 2 and form path, and make the power consumption rheology of whole voltage stabilizing circuit 5 little, avoid this voltage stabilizing circuit 5 to damage because of electric current is excessive, use and reach effect energy-conservation and that prolong the useful life of each electronic component of the utility model, multisection type capacitor voltage-dropping power supply circuit wherein of the present utility model is well suited for being used for small household appliances, can reach effect energy-conservation and that price is low.
See also shown in Figure 3ly again, wherein this first capacity voltage dropping circuit 2 can a plurality of aforementioned second capacity voltage dropping circuits 3 in parallel, and can reach the effect of multisection type step-down according to the load size of load end 6.
The above only is preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this, promptly changes and modification according to the utility model claim and simple equivalent that description is done, and all belongs in the scope that the utility model contains.
Claims (5)
1. multisection type capacitor voltage-dropping power supply circuit, system is provided with an input power supply, this input power supply one first capacity voltage dropping circuit of connecting, this first capacity voltage dropping circuit is connected serially to a load end again, and on this first capacity voltage dropping circuit at least one second capacity voltage dropping circuit in parallel, this second capacity voltage dropping circuit switching circuit of connecting again.
2. multisection type capacitor voltage-dropping power supply circuit according to claim 1, wherein this switching circuit comprises an IC wafer tandem one electric crystal, and wherein this IC wafer more comprises a near-infrafed photodiodes and one or three utmost point thyristors.
3. multisection type capacitor voltage-dropping power supply circuit according to claim 1, the voltage stabilizing circuit of wherein more connecting between this first capacity voltage dropping circuit and this load end.
4. multisection type capacitor voltage-dropping power supply circuit according to claim 3, wherein this voltage stabilizing circuit includes the bridge rectifier that resistance series connection one is made up of four diodes, and a Zener diode in parallel behind this bridge rectifier, at least one filter capacitor in parallel behind this Zener diode again.
5. according to 1 to the 4th each described multisection type capacitor voltage-dropping power supply circuit of claim the, wherein this first capacity voltage dropping circuit and second capacity voltage dropping circuit system includes a resistance electric capacity in parallel respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206166968U CN201898451U (en) | 2010-11-22 | 2010-11-22 | Multi-stage capacitor voltage reduction power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206166968U CN201898451U (en) | 2010-11-22 | 2010-11-22 | Multi-stage capacitor voltage reduction power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201898451U true CN201898451U (en) | 2011-07-13 |
Family
ID=44256334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206166968U Expired - Fee Related CN201898451U (en) | 2010-11-22 | 2010-11-22 | Multi-stage capacitor voltage reduction power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201898451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694477A (en) * | 2012-06-14 | 2012-09-26 | 邹溪 | High-voltage alternating current power supply, low-voltage alternating current power supply and low-voltage direct current power supply common-base circuit |
| CN103715918A (en) * | 2014-01-09 | 2014-04-09 | 惠州天能源科技有限公司 | Digitally-controlled power converter |
-
2010
- 2010-11-22 CN CN2010206166968U patent/CN201898451U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694477A (en) * | 2012-06-14 | 2012-09-26 | 邹溪 | High-voltage alternating current power supply, low-voltage alternating current power supply and low-voltage direct current power supply common-base circuit |
| CN102694477B (en) * | 2012-06-14 | 2014-10-29 | 邹溪 | High-voltage alternating current power supply, low-voltage alternating current power supply and low-voltage direct current power supply common-base circuit |
| CN103715918A (en) * | 2014-01-09 | 2014-04-09 | 惠州天能源科技有限公司 | Digitally-controlled power converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201113782Y (en) | Zero-cross detection circuit for switch power circuit | |
| CN201758349U (en) | Low power consumption circuit by using circuit starting resistor as bleeder resistor | |
| CN101814823B (en) | Low power consumption circuit using circuit starting resistor as bleeder resistor | |
| CN201717794U (en) | Capacitor voltage reducing circuit using impedance input filter | |
| CN201898451U (en) | Multi-stage capacitor voltage reduction power supply circuit | |
| CN201774468U (en) | Voltage dropping circuit with capacitor for filtering waves by using inducer | |
| CN201332522Y (en) | LED lighting circuit | |
| CN204497972U (en) | A kind of novel retention time circuit structure | |
| CN204190477U (en) | A kind of USB charger | |
| CN201828602U (en) | Power failure detection circuit with low power consumption | |
| CN209283112U (en) | A kind of power circuit for automatic transfer switching electric appliance controller | |
| CN204741590U (en) | LED drive circuit | |
| CN205407217U (en) | Intelligent release that decompression is under -voltage | |
| CN206260106U (en) | A kind of twin-stage PFC dimming driving circuits | |
| CN201332464Y (en) | Switch power supply circuit and television | |
| CN204168139U (en) | The buffer circuit of power input | |
| CN202135070U (en) | Dual-voltage capacitance-resistance voltage-reduction energy saving circuit | |
| CN202256492U (en) | Direct-current-direct current (DC-DC)-based resistance-capacitance single-phase charge control intelligent electric energy meter | |
| CN202042934U (en) | Electric energy meter and RC (resistor-capacitor) power of electric energy meter | |
| CN211744806U (en) | Control circuit of LED driving power supply | |
| CN102790538A (en) | Electric energy meter and RC (Remote Control) power supply thereof | |
| CN201830137U (en) | High-low pressure input balance power factor correcting circuit | |
| CN212061818U (en) | Display device | |
| CN202475363U (en) | Motor electricity-saving device | |
| CN200997703Y (en) | Improved LED decorative light string structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20121122 |