CN204794736U - Novel half -wave rectifier circuit - Google Patents
Novel half -wave rectifier circuit Download PDFInfo
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- CN204794736U CN204794736U CN201520423355.1U CN201520423355U CN204794736U CN 204794736 U CN204794736 U CN 204794736U CN 201520423355 U CN201520423355 U CN 201520423355U CN 204794736 U CN204794736 U CN 204794736U
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Abstract
The utility model discloses a novel half -wave rectifier circuit, including rectifier circuit and reduction voltage circuit, last current -limiting resistor R1, piezo -resistor CNR1, X2 electric capacity C1, rectifier diode D1D2, the filter capacitance C2 of connecting of rectifier circuit, be connected with electrolytic capacitor C3C5C6, carbon film resistor R2R3R4R8, I -shaped inductance L1L2, fast pipe D3D4, ceramic disc capacitor C4C8, the switching power supply chip U1 of resumeing on the reduction voltage circuit. This practical novel half -wave rectifier circuit is owing to concatenate two diodes, and the diode of series connection can be managed for fast the recovering, also can be rectifier diode, and two diodes of series connection can increase at the live wire, also can increase at the zero line, and this circuit can show improved circuit's anti lightning surge ability to the performance of guaranteeing control circuit board is more reliable, is applicable to very much household electrical appliances control field.
Description
Technical field
The utility model relates to a kind of half-wave rectifying circuit of household appliance technical field, particularly relates to a kind of small-power Unisolated switch power circuit.
Technical background
In current household appliance technical field, the half-wave rectified current that a big chunk small-power switching power-supply circuit adopts single diode to form, it is simple that the program has circuit theory, the advantage that cost is low.The principle of diode rectifier circuit is the unidirectional general character utilizing diode, diode current flow in the output voltage situation after line voltage is greater than rectification.According to current mode, single diode rectifier circuit is used to be very easy to damage in lightning surge test.
Utility model content
The utility model is in order to solve defect and the deficiency of the existence of above-mentioned prior art, provide a kind of only increase diode, just greatly can increase the anti-lightning surge capacity of circuit integrity, thus ensure the performance of control circuit board, the life-span, more reliable, be highly suitable for the half-wave rectifying circuit in home wiring control field.
The technical solution of the utility model: a kind of novel half-wave rectifying circuit, is characterized in that: comprise rectification circuit and reduction voltage circuit; Described rectification circuit connects current-limiting resistance R1, piezo-resistance CNR1, electric capacity C1, rectifier diode D1, D2, filter capacitor C2; AC power inputs, after the current-limiting resistance R1 of series connection, after piezo-resistance CNR1, electric capacity C1, after flowing through rectifier diode D1, D2 halfwave rectifier of two series connection, then obtain galvanic current pressure through π filter circuit and input to Switching Power Supply; Described reduction voltage circuit is connected with electrochemical capacitor C3, C5, C6, fixed carbon resister R2, R3, R4, R8, I-shaped inductance L 1, L2, fast recovery pipe D3, D4, ceramic disc capacitor C4, C8, switching power source chip U1; Input direct voltage after rectifying and wave-filtering is after electric capacity C3, with switching power source chip U1, I-shaped inductance L 2, electrochemical capacitor C6, fast recovery pipe D3 forms Switching Power Supply reduction voltage circuit, then recovers pipe D4, electrochemical capacitor C5 by fast, fixed carbon resister R3, R4 form the feedback pin that feedback loop is input to switching power source chip U1, form reduction voltage circuit.
Half-wave rectifying circuit adopts series connection two diodes to realize, and adopts the half-wave rectifying circuit that two diodes form, can the anti-lightning surge capacity of increasing circuit, is highly suitable for home wiring control field.
Preferably, described rectifier diode D1, D2 are for recovering pipe soon, and it is connected on live wire or zero line.
The fast recovery pipe adopted in the utility model for UF4007 or other recover pipe soon, common rectifier diode is IN4007 or other common rectifier diodes.
This kind of structure makes circuit more reliable and more stable.
The utility model increases a diode, just greatly can increase the anti-lightning surge capacity of circuit integrity, thus ensures the performance of control circuit board, the life-span, more reliable, is highly suitable for home wiring control field.
Accompanying drawing explanation
Fig. 1 is circuit theory schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and novel half-wave rectifying circuit, the utility model is described in further detail, but is not the restriction to the utility model protection range.
As shown in Figure 1, a kind of novel half-wave rectifying circuit, comprises rectification circuit and reduction voltage circuit; Described half-wave rectifying circuit adopts series connection two diodes to realize, described rectification circuit connects current-limiting resistance R1, piezo-resistance CNR1, X2 electric capacity C1, rectifier diode D1/D2, filter capacitor C2, AC power inputs, after the current-limiting resistance R1 of series connection, through piezo-resistance, after X2 electric capacity, after flowing through the diode halfwave rectifier of two series connection, then obtain galvanic current pressure through π filter circuit and input to Switching Power Supply.Described reduction voltage circuit is connected with electrochemical capacitor C3/C5/C6, fixed carbon resister R2/R3/R4/R8, I-shaped inductance L 1/L2, fast recovery pipe D3/D4, ceramic disc capacitor C4/C8, switching power source chip U1, direct voltage obtains stable 12V voltage for load X after the step-down of buck converter circuit.
The utility model half-wave rectifying circuit is owing to being connected in series two diodes, the diode of series connection can manage (as UF4007) for recovering soon, also can be common rectifier diode (as IN4007), two diodes of series connection can be increased in live wire, also zero line can be increased in, this circuit can significantly improve the anti-lightning surge capacity of circuit, thus ensures that the performance of control circuit board is more reliable, is highly suitable for home wiring control field.
Claims (2)
1. a novel half-wave rectifying circuit, is characterized in that: comprise rectification circuit and reduction voltage circuit; Described rectification circuit connects current-limiting resistance R1, piezo-resistance CNR1, electric capacity C1, rectifier diode D1, D2, filter capacitor C2; AC power inputs, after the current-limiting resistance R1 of series connection, after piezo-resistance CNR1, electric capacity C1, after flowing through rectifier diode D1, D2 halfwave rectifier of two series connection, then obtain galvanic current pressure through π filter circuit and input to Switching Power Supply; Described reduction voltage circuit is connected with electrochemical capacitor C3, C5, C6, fixed carbon resister R2, R3, R4, R8, I-shaped inductance L 1, L2, fast recovery pipe D3, D4, ceramic disc capacitor C4, C8, switching power source chip U1; Input direct voltage after rectifying and wave-filtering is after electric capacity C3, with switching power source chip U1, I-shaped inductance L 2, electrochemical capacitor C6, fast recovery pipe D3 forms Switching Power Supply reduction voltage circuit, then recovers pipe D4, electrochemical capacitor C5 by fast, fixed carbon resister R3, R4 form the feedback pin that feedback loop is input to switching power source chip U1, form reduction voltage circuit.
2. the novel half-wave rectifying circuit of one according to claim 1, is characterized in that: described rectifier diode D1, D2 are for recovering pipe soon, and it is connected on live wire or zero line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520423355.1U CN204794736U (en) | 2015-06-18 | 2015-06-18 | Novel half -wave rectifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520423355.1U CN204794736U (en) | 2015-06-18 | 2015-06-18 | Novel half -wave rectifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794736U true CN204794736U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520423355.1U Active CN204794736U (en) | 2015-06-18 | 2015-06-18 | Novel half -wave rectifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794736U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253706A (en) * | 2016-08-19 | 2016-12-21 | 佛山市顺德区海伦宝电器有限公司 | A kind of Width funtion power circuit being applied to fan or cooling fan |
| CN108039702A (en) * | 2017-12-28 | 2018-05-15 | 广东美的厨房电器制造有限公司 | Anti- rush of current circuit and micro-wave oven |
| CN109699096A (en) * | 2017-10-24 | 2019-04-30 | 赵玉奎 | A kind of novel I H electromagnetic heating circuit |
-
2015
- 2015-06-18 CN CN201520423355.1U patent/CN204794736U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253706A (en) * | 2016-08-19 | 2016-12-21 | 佛山市顺德区海伦宝电器有限公司 | A kind of Width funtion power circuit being applied to fan or cooling fan |
| CN109699096A (en) * | 2017-10-24 | 2019-04-30 | 赵玉奎 | A kind of novel I H electromagnetic heating circuit |
| CN108039702A (en) * | 2017-12-28 | 2018-05-15 | 广东美的厨房电器制造有限公司 | Anti- rush of current circuit and micro-wave oven |
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