CN204887618U - Novel nonpolarity compatible LED drive power supply - Google Patents
Novel nonpolarity compatible LED drive power supply Download PDFInfo
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- CN204887618U CN204887618U CN201520654362.2U CN201520654362U CN204887618U CN 204887618 U CN204887618 U CN 204887618U CN 201520654362 U CN201520654362 U CN 201520654362U CN 204887618 U CN204887618 U CN 204887618U
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- led
- resistance
- constant current
- pin
- rectifier bridge
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Abstract
The utility model discloses a (B, ) novel nonpolarity compatibility (b) (b) LED (b) (b) drive power supply (b), including resistance -capacitance reduction voltage circuit and (b) LED (b) (b) constant current drive chip (b), its characteristics are the external alternating current of input of resistance -capacitance reduction voltage circuit, 1 end and 3 ends of rectifier bridge are received respectively to two outputs, , 2 ends of rectifier bridge have connect second electric capacity between holding with 4 and by second resistance, the circuit that third resistance and third electric capacity concatenated, 2 terminations of rectifier bridge are to the positive pole of LED lamp, 4 terminations of rectifier bridge arrive 1 foot and 3 feet of (b) LED (b) (b) constant current drive chip (b), 2 feet of (b) LED (b) (b) constant current drive chip (b) are received to 4 ends of rectifier bridge behind the 5th resistance, connect respectively behind third electric capacity and the fourth resistor parallel with at 4 ends of rectifier bridge and 4 feet of (b) LED (b) (b) constant current drive chip (b), between the positive pole of LED lamp and negative pole and connect fourth electric capacity and the 6th resistance, (B, ) 5 feet and 6 feet of LED (b) (b) constant current drive chip (b) are connected after the third inductance is connected to the negative pole of LED lamp and passes through the positive pole that the LED lamp is connected to the 5th diode. Its drive power supply is efficient.
Description
Technical field
The utility model belongs to
lEDfield, particularly relates to a kind of Novel electrodeless compatible with LED driving power.
Background technology
On existing market
lED drive power, not having can compatible conventional fluorescent Inductive ballast and electronic ballast for fluoresent lamp function.
Summary of the invention
The purpose of this utility model is to provide a kind of simple structure, easy to use
novel electrodeless compatible with LED driving power.It can compatible conventional fluorescent Inductive ballast and electronic ballast for fluoresent lamp function.
The purpose of this utility model is achieved in that described
novel electrodeless compatible with LED driving power, comprise capacitance-resistance voltage reduction circuit, rectifier bridge and
lED constant current driving chipit is characterized in that: the input external AC of described capacitance-resistance voltage reduction circuit, two outputs of capacitance-resistance voltage reduction circuit receive 1 end and 3 ends of rectifier bridge respectively, the second electric capacity and the circuit by the second resistance, the 3rd resistance and the 3rd capacitance series is connected between 2 ends and 4 ends of rectifier bridge, 2 ends of rectifier bridge receive the positive pole of LED, and 4 ends of rectifier bridge are received
lED constant current driving chip1 pin and 3 pin, 4 ends of rectifier bridge are received after the 5th resistance
lED constant current driving chip2 pin, be connected on respectively after described 3rd electric capacity and the 4th resistor coupled in parallel rectifier bridge 4 ends and
lED constant current driving chip4 pin, between the positive pole and negative pole of LED, be connected to the 4th electric capacity and the 6th resistance,
lED constant current driving chip5 pin be connected with 6 pin after to be connected to the negative pole of LED through the 3rd inductance,
lED constant current driving chip5 pin be connected with 6 pin after connect the positive pole of LED through the 5th diode,
lED constant current driving chip7 pin be connected with 8 pin after receive 4 ends of rectifier bridge after parallel circuits through being made up of the 7th resistance and the 8th resistance.
One input of described capacitance-resistance voltage reduction circuit connects alternating current one end through the first inductance, protective tube, another input external AC other end after the second inductance of capacitance-resistance voltage reduction circuit.
One input of described capacitance-resistance voltage reduction circuit connects alternating current one end through protective tube, I-shaped inductive, another input external AC other end of capacitance-resistance voltage reduction circuit.
Advantage of the present utility model: 1, having can compatible conventional fluorescent Inductive ballast.2, can compatible electronic ballast for fluoresent lamp.3, also LED can be lighted under there is incompatible condition.4, have Width funtion function, driving power efficiency is high.5, the utility model cost is low, and advanced technology product safety is reliable.The feature such as 5, there are energy-saving and environmental protection, economize on resources.
Accompanying drawing explanation
Fig. 1 is this practicality
novelcircuit theory diagrams.
Fig. 2 is the circuit theory diagrams adopting the conduction of I-shaped inductive minimizing circuit and Fu She Defend to disturb.
Embodiment
Below in conjunction with accompanying drawing and example, structure of the present utility model and use procedure are described in detail:
As shown in Figure 1, described in the utility model
novel electrodeless compatible with LED driving power, comprise capacitance-resistance voltage reduction circuit, rectifier bridge and
lED constant current driving chipiC, capacitance-resistance voltage reduction circuit is formed in parallel by the first electric capacity C1 and the first resistance R1, its design feature is the input external AC of described capacitance-resistance voltage reduction circuit, two outputs of capacitance-resistance voltage reduction circuit receive 1 end and 3 ends of rectifier bridge respectively, the circuit being connected to the second electric capacity C2 and being connected in series by the second resistance R2, the 3rd resistance R3 and the 3rd electric capacity C3 between 2 ends and 4 ends of rectifier bridge, 2 ends of rectifier bridge receive the positive pole of LED, and 4 ends of rectifier bridge are received
lED constant current driving chip1 pin of IC and 3 pin, 4 ends of rectifier bridge are received after the 5th resistance R5
lED constant current driving chip2 pin of IC, be connected on respectively after described 3rd electric capacity C3 is in parallel with the 4th resistance R4 rectifier bridge 4 ends and
lED constant current driving chip4 pin of IC, are connected to the 4th electric capacity C4 and the 6th resistance R6 between the positive pole and negative pole of LED,
lED constant current driving chipbe connected to the negative pole of LED through the 3rd inductance L 3 after 5 pin of IC are connected with 6 pin,
lED constant current driving chipconnect the positive pole of LED through the 5th diode D5 after 5 pin of IC are connected with 6 pin,
lED constant current driving chip4 ends of rectifier bridge are received, 4 end ground connection of rectifier bridge or circuit ground after parallel circuits through being made up of the 7th resistance R7 and the 8th resistance R8 after 7 pin of IC are connected with 8 pin.Capacitance-resistance voltage reduction circuit of the present utility model is made up of the first resistance R1 and the first electric capacity C1, one input end can after the first inductance L 1, protective tube F1 external AC one end, another input is external AC (representing see the AC in the figure) other end after the second inductance L 2.
Operation principle: energising after-current is through the first inductance L 1, protective tube F1, first inductance L 1 plays metering function (when wanting compatible lc circuit electric ballast, the first inductance L 1 can be removed, second inductance L 2, conduction and the Fu She Defend of available I-shaped inductive L4 minimizing circuit are disturbed, see Fig. 2), electric current charges (the first resistance R1 is discharge process) to the first electric capacity C1 simultaneously, first electric capacity C1 plays shunting action, electric current over commutation bridge is by the first diode D1, second diode D2, 3rd diode D3, 4th diode D4 forms (efficient diode) rectifier bridge after-current by cathode rectifier to the second electric capacity C2(electrochemical capacitor) charging, simultaneously through the second resistance R2, 3rd resistance R3 charges (the second resistance R2 is discharge process) to the 3rd electric capacity C3, when the voltage on the 3rd electric capacity C3 reaches
lED constant current drivesduring the cut-in voltage of 4 pin of chip IC,
lED constant current driveschip IC unlatching work, electric current charges (the 6th resistance R6 is discharge process) also to the 4th electric capacity C4 by LED (it can be LED 1, LED2, LED3 etc. multiple in series) simultaneously, 4th electric capacity C4 effect (electrochemical capacitor) is the luminous efficiency absorbing instantaneous peak voltage and improve LED, and the 5th diode D5 conducting can hide aftercurrent.Electric current is crossed the 3rd inductance L 3 and is arrived
lED constant current drives5 pin of chip IC (
lED constant current drives6 pin of chip IC with
lED constant current drives5 pin phases of chip IC also connect), mistake
lED constant current drives1 pin of chip IC (
lED constant current drives3 pin of chip IC are with 1 pin phase and connect) connection circuit ground, electric current over commutation bridge negative pole gets back to power supply after crossing the second inductance L 2 current limliting, and at this moment LED is lit.Above-mentioned
lED constant current driveschip IC is preferably
non-isolated voltage-dropping type LED constant current driving chip, model can be BP2832A.
When
lED constant current drives8 pin of chip IC (
lED constant current drives7 pin of chip with
lED constant current drives8 pin phases of chip also connect) circuit is sampled, when voltage reaches detected value through the 7th resistance R7, the 8th resistance R8 in parallel
lED constant current drives5 pin of chip IC turn off.Due to
lED constant current drivesduring 5 pin conducting of chip IC, the inductive current of the 3rd inductance L 3 is raised to peak value from zero, when
lED constant current drives5 pin of chip IC close have no progeny, the electric current of the 3rd inductance L 3 when dropping to zero from peak value,
lED constant current drivesthe 5 pin conducting again of chip IC, this turns off conducting repeatedly to light LED.
lED constant current drives2 pin of chip IC, through the 5th resistance R5 connection circuit ground, play open circuit protective effect.
Claims (3)
1. one kind
novel electrodeless compatible with LED driving power, comprise capacitance-resistance voltage reduction circuit, rectifier bridge and
lED constant current driving chip, it is characterized in that: the input external AC of described capacitance-resistance voltage reduction circuit, two outputs of capacitance-resistance voltage reduction circuit receive 1 end and 3 ends of rectifier bridge respectively, between 2 ends and 4 ends of rectifier bridge, be connected to the second electric capacity
(c2) and by the second resistance, the 3rd resistance
(r3) the and three electric capacity
(c3) circuit be connected in series, 2 ends of rectifier bridge receive the positive pole of LED, and 4 ends of rectifier bridge are received
lED constant current driving chip (iC) 1 pin and 3 pin, 4 ends of rectifier bridge are through the 5th resistance
(r5) receive after
lED constant current driving chip (iC) 2 pin, described 3rd electric capacity
(c3) with the 4th resistance
(r4) be connected on respectively after parallel connection rectifier bridge 4 ends and
lED constant current driving chip (iC) 4 pin, are connected to the 4th electric capacity between the positive pole and negative pole of LED
(c4) the and six resistance
(r6),
lED constant current driving chip (iC) through the 3rd inductance after 5 pin are connected with 6 pin
(l3) negative pole of LED is connected to,
lED constant current driving chip (iC) through the 5th diode after 5 pin are connected with 6 pin
(d5) positive pole of LED is connected,
lED constant current driving chip (iC) after 7 pin are connected with 8 pin, warp is by the 7th resistance
(r7) the and eight resistance
(r8) 4 ends of rectifier bridge are received after the parallel circuits formed.
2. according to claim 1
novel electrodeless compatible with LED driving power, it is characterized in that: an input of described capacitance-resistance voltage reduction circuit is through the first inductance
(l1), protective tube
(f1) connect alternating current one end, another input of capacitance-resistance voltage reduction circuit is through the second inductance
(l2) the external AC other end afterwards.
3. according to claim 1
novel electrodeless compatible with LED driving power, it is characterized in that: an input of described capacitance-resistance voltage reduction circuit is through protective tube
(f1), I-shaped inductive
(l4) alternating current one end is connect, another input external AC other end of capacitance-resistance voltage reduction circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654362.2U CN204887618U (en) | 2015-08-27 | 2015-08-27 | Novel nonpolarity compatible LED drive power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654362.2U CN204887618U (en) | 2015-08-27 | 2015-08-27 | Novel nonpolarity compatible LED drive power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204887618U true CN204887618U (en) | 2015-12-16 |
Family
ID=54831935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520654362.2U Expired - Fee Related CN204887618U (en) | 2015-08-27 | 2015-08-27 | Novel nonpolarity compatible LED drive power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204887618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021073550A1 (en) * | 2019-10-18 | 2021-04-22 | 深圳市国盈光电有限公司 | High-voltage, high-power-factor non-flicker light strip |
-
2015
- 2015-08-27 CN CN201520654362.2U patent/CN204887618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021073550A1 (en) * | 2019-10-18 | 2021-04-22 | 深圳市国盈光电有限公司 | High-voltage, high-power-factor non-flicker light strip |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20190827 |