TWM557955U - Lighting circuit board - Google Patents

Abstract

This creation is concerned with a light emitting diode circuit board device, especially a circuit board applied to light emitting diodes (LED) lighting, its function is to add another LED lighting output current ripple suppressor circuit board on the lighting drive circuit board, so that the LED lighting achieves the minimum flicker effect.

Description

Lighting board

The present invention relates to an illumination circuit board, in particular to a circuit board for illumination LED illumination, adding another LED output current ripple suppression circuit board on the original illumination drive circuit board, which can make the illumination The diode illumination achieves a minimum flickering effect.

Recently, in the field of lighting, because of the energy-saving relationship, the use of light-emitting diode lighting has been very popular, but its heat dissipation in electronic components and the flashing of the LED illumination are the key technical solutions for manufacturers.

As shown in FIG. 1 , it is a circuit diagram of a conventional lighting circuit board, which includes: a rectifier filter circuit (Rectifier and Filter Circuit), a buck converter circuit (buck converter circuit), and a buck filter circuit (Buck). Circuits such as Filter Circuit).

As shown in FIG. 1 , the rectifying and filtering circuit includes two AC input terminals, one of which is a first AC input terminal ACL, and the other is a second AC input terminal ACN, a fuse F1, a first capacitor C1, and a full-wave rectifier BD1. The second capacitor C2, the first inductor L1 and the surge absorber V1; as shown in Fig. 1, the first AC input ACL connection insurance One end of the wire F1, the other end of the fuse F1 is connected to one end of the first capacitor C1 and the AC1 end of the full-wave rectifier BD1, and the second AC input terminal ACN is connected to the other end of the first capacitor C1 and the AC3 end of the full-wave rectifier BD1, The V+2 end of the wave rectifier BD1 is connected to one end of the first inductor L1, and the other end of the first inductor L1 is connected to one end of the second capacitor C2 and one end of the surge absorber V1, and the V-4 end of the full-wave rectifier BD1 The other end of the second capacitor C2 and the other end of the surge absorber V1 are connected, and the surge absorber V1 and the second capacitor C2 are connected in parallel.

As can be seen from FIG. 1, the buck conversion circuit includes a buck type integrated circuit IC1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, and a fifth resistor R5. , sixth resistor R6, seventh resistor R7, eighth resistor R8, ninth resistor R9, tenth resistor R10, eleventh resistor R11, thirteenth resistor R13, first diode The first resistor R1 and the second resistor R2 are connected in series, as shown in FIG. 5, One end of the first resistor R1 is connected to one end of the second capacitor C2, and the other end of the second resistor R2 is connected to one end of the third capacitor C3, the cathode end of the first diode D1, and the first step of the step-down integrated circuit IC1. The other end of the third capacitor C3 is connected to one end of the third resistor R3, the second leg of the step-down integrated circuit IC1, the other end of the fourth capacitor C4, and the other end of the sixth resistor R6. The other end of the resistor R3 is connected to one end of the fourth resistor R4 and the fourth leg of the step-down integrated circuit IC1, and the fourth power The other end of the resistor R4 is connected to the other end of the eleventh resistor R11 and the tap end of the second inductor L2. The anode end of the first diode D1 is connected to one end of the eleventh resistor R11, and the tenth resistor R10 Connected in series with the thirteenth resistor R13, one end of the tenth resistor R10 is connected to one end of the second capacitor C2 and the drain end of the first semiconductor Q1, and the other end of the thirteenth resistor R13 is connected to one end of the sixth resistor R6. Fifth electric One end of the capacitor C5 and the other end of the fifth capacitor C5 are connected to the third leg of the step-down integrated circuit IC1 and one end of the fourth capacitor C4, and the source terminal of the first semiconductor Q1 is connected to the first step of the step-down integrated circuit IC1. One leg, one end of the seventh resistor R7, one end of the eighth resistor R8, and one end of the ninth resistor R9, the other end of the seventh resistor R7, the other end of the eighth resistor R8, and the ninth resistor R9 The other end of the step-down integrated circuit IC1, the second end of the second inductor L2, and the cathode end of the second diode D2 are connected together, and the sixth leg of the step-down integrated circuit IC1 is connected. The other end of the fifth resistor R5, one end of the fifth resistor R5 is connected to the gate terminal of the first semiconductor Q1, and the other end of the second inductor L2 is connected to the other end of the second capacitor C2.

As can be seen from Figure 1, the buck filter circuit includes a second diode D2, a sixth capacitor C6, a twelfth resistor R12, a DC input positive terminal DC+, and a DC output negative terminal DC-; 5, the cathode end of the second diode D2 is connected to one end of the second inductor L2, and the anode end of the second diode D2 is connected to the DC output negative terminal DC-, the negative terminal of the sixth capacitor C6, and the twelfth resistor One end of R12, the DC input positive terminal DC+ is connected to the positive terminal of the sixth capacitor C6, the other end of the twelfth resistor R12, and the other end of the second inductor L2.

FIG. 2 is a schematic diagram showing the arrangement of circuit elements on the upper layer of the conventional lighting circuit board device of FIG. 1. It is known from the figure that it has a rectangular shape, and is configured with a first capacitor C1, a second capacitor C2, and a fuse F1. An inductor L1, a surge absorber V1, a second inductor L2, and a sixth capacitor C6.

As shown in FIG. 3 , it is a schematic diagram of the circuit components of the lower layer of the lighting circuit board device of FIG. 1 . It is known from the figure that it is a rectangular shape, and a buck type integrated circuit IC1 and a first resistor R1 are disposed. Second resistor R2, third resistor R3, fourth resistor R4, fifth resistor R5, sixth resistor R6, seventh resistor R7, eighth resistor R8, ninth resistor R9, tenth resistor R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, first diode D1, second diode D2 The third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, the first semiconductor Q1, and the full-wave rectifier BD1.

As can be seen from the above, the conventional lighting circuit board device products have the following disadvantages:

1. The conventional circuit configuration circuit board has a rectangular shape, and the layout interval and distance of the circuit components are reduced, which causes the circuit components to be dense and the heat dissipation of the circuit components is not easy, which causes the illumination diode circuit to generate illumination flicker.

2. The conventional circuit configuration circuit board often lacks the heat dissipation configuration design of each circuit component in a proper position, which causes an increase in the heat conduction interference value between the circuit components, and affects the stability of the lighting circuit.

From the above, it is known that the arrangement interval and distance of the circuit elements are reduced, and the heat conduction interference value between the circuit elements is improved. Therefore, the present purpose has the following objectives:

1. The first purpose of the creation is to provide an illumination driving circuit board and a light-emitting diode illumination output current ripple suppression circuit board to improve the illumination phenomenon of the LED illumination.

2. The second purpose of the creation is to reconfigure the circuit components on the conventional circuit configuration circuit board, and divide the circuit of the creation into three parts, one for the illumination driving circuit board and the other for the illumination output current of the LED. The ripple suppression circuit board and the light emitting diode circuit board are disposed in the light emitting diode lamp tube to achieve a reduction in heat conduction interference value between each circuit component and a minimum illumination flicker phenomenon.

This creation has the following characteristics:

1. This creation arranges the lighting driver circuit board to the left of the LED lighting tube.

2. This creation arranges the light-emitting diode circuit board in the middle position in the light-emitting diode lighting tube.

3. This creation arranges the LED output current ripple suppression circuit board on the right side of the LED illumination tube.

4. Due to the above configuration, it is possible to increase the heat dissipation area of the present creation and the reduction of the heat conduction interference value between the circuit elements, thereby obtaining the minimum illumination flickering effect.

ACL‧‧‧ first AC input

ACN‧‧‧Second AC input

LED+‧‧‧Lighting diode circuit positive terminal

LED-‧‧‧Light-emitting diode circuit negative terminal

VC‧‧‧DC positive voltage terminal

V-‧‧‧negative voltage terminal

100‧‧‧Lighting driver board

200‧‧‧Lighting diode output current ripple suppression circuit board

300‧‧‧Lighting diode board

C1‧‧‧First Capacitor

C2‧‧‧second capacitor

C3‧‧‧ third capacitor

C4‧‧‧fourth capacitor

C5‧‧‧ fifth capacitor

C6‧‧‧ sixth capacitor

C7‧‧‧ seventh capacitor

C8‧‧‧ eighth capacitor

C9‧‧‧ ninth capacitor

C10‧‧‧10th Capacitor

C11‧‧‧11th capacitor

C12‧‧‧12th capacitor

R1‧‧‧ first resistor

R2‧‧‧second resistor

R3‧‧‧ third resistor

R4‧‧‧ fourth resistor

R5‧‧‧ fifth resistor

R6‧‧‧ sixth resistor

R7‧‧‧ seventh resistor

R8‧‧‧ eighth resistor

R9‧‧‧ ninth resistor

R10‧‧‧10th Resistor

R11‧‧‧Eleventh Resistor

R12‧‧‧12th resistor

R13‧‧‧13th resistor

R14‧‧‧fourteenth resistor

R15‧‧‧ fifteenth resistor

R16‧‧‧16th resistor

R17‧‧‧17th resistor

R18‧‧‧18th resistor

L1‧‧‧First Inductor

L2‧‧‧second inductor

L3‧‧‧ third inductor

F1‧‧‧First fuse

F2‧‧‧second fuse

F3‧‧‧third fuse

U1‧‧‧ surge absorber

D1‧‧‧First Diode

D2‧‧‧ second diode

D3‧‧‧ third diode

D4‧‧‧ fourth diode

BR1‧‧‧First Full Wave Rectifier

BR2‧‧‧Second full wave rectifier

IC1‧‧‧Buck Integrated Circuit

IC2‧‧‧Output current ripple suppression integrated circuit

CN1‧‧‧First connector

CN2‧‧‧Second connector

M1‧‧‧Metal Oxide Semiconductor Field Effect Transistor

Figure 1 is a circuit diagram of a conventional lighting circuit board device.

2 is a schematic view showing the configuration of electronic components on the upper layer of the conventional lighting circuit board device of FIG. 1.

3 is a schematic view showing the configuration of electronic components under the lighting circuit board device of FIG.

Figure 4 is a circuit diagram of the creative lighting circuit board.

Figure 5 is a block diagram showing the configuration of the creative lighting circuit board.

Figure 6 is a schematic diagram of the electronic components of the upper layer of the illumination driving circuit board of the creation lighting circuit board.

FIG. 7 is a schematic diagram showing the configuration of electronic components under the illumination driving circuit board of the creation lighting circuit board.

FIG. 8 is a schematic diagram of the electronic component arrangement on the upper layer of the output current ripple suppression circuit board of the illumination LED circuit of the creation lighting circuit board.

FIG. 9 is a schematic diagram of the electronic component configuration of the lower layer of the LED output current ripple suppression circuit board of the creative lighting circuit board.

4 is a circuit diagram of the creation lighting circuit board. As can be seen from FIG. 4, the illumination driving circuit board 100 includes a rectifying and filtering circuit and a step-down conversion circuit; the rectifying and filtering circuit includes two AC input terminals, one of which is The first AC input terminal ACL, the second is the second AC input terminal ACN, the first fuse F1, the second fuse F2, the third fuse F3, the first full-wave rectifier BR1, the second full-wave rectifier BR2, and the first inductor L1, second inductor L3, first capacitor C1, second capacitor C2, eighth capacitor C8 and surge absorber U1; wherein the first AC input terminal ACL is connected to the second end 2 of the first connector CN1 a second end 2 of the second connector CN2, one end of the first fuse F1 and one end of the third fuse F3; wherein the second AC input terminal ACN is connected to the first end 1 of the first connector CN1 and the second connector CN2 One end of the first end 1 and the second fuse F2.

As shown in FIG. 4, the first AC input terminal ACL is connected to one end of the first fuse F1 and one end of the third fuse F3, and the other end of the first fuse F1 is connected to the first AC terminal AC1 and the second capacitor of the first full-wave rectifier BR1. One end of C2, the second AC input terminal ACN is connected to the second AC terminal AC3 of the first full-wave rectifier BR1 and the other end of the second capacitor C2, and the other end of the third fuse F3 is connected to the first AC of the second full-wave rectifier BR2. The other end of the second fuse F2 is connected to the second AC terminal AC3 of the second full-wave rectifier BR2; the DC positive voltage terminal V+2 of the first full-wave rectifier BR1 is connected to one end of the first inductor L1 and the third inductor. The other end of the L3 can also be referred to as a DC positive voltage terminal VC. The other end of the first inductor L1 is connected to one end of the first capacitor C1 and one end of the surge absorber U1. The DC negative voltage terminal V of the first full-wave rectifier BR1 -4 is connected to the other end of the first capacitor C1, the other end of the surge absorber U1, the anode end of the fourth diode D4, the other end of the twelfth resistor R12, and the other end of the eighteenth resistor R18, The other end of the eighth resistor R8, the seventh resistor R7 The other end, tenth The other end of the fifth resistor R15, the other end of the sixth capacitor C6, the other end of the tenth capacitor C10, the other end of the ninth capacitor C9, the other end of the twelfth capacitor C12, the other end of the eighth capacitor C8, and the other end The negative voltage terminal V-4 of the two full-wave rectifier BR2 or the negative voltage terminal V-.

As can be seen from FIG. 4, the buck conversion circuit includes a buck type integrated circuit IC1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, and a fifth resistor R5. , ninth resistor R9, tenth resistor R10, eleventh resistor R11, twelfth resistor R12, second diode D2, third diode D3, fourth diode D4, third The capacitor C3, the fourth capacitor C4, the sixth capacitor C6, the seventh capacitor C7 and the second inductor L2, wherein the ninth resistor R9 and the tenth resistor R10 are connected in parallel, the first resistor R1 and the second resistor R2 Connect in series.

As can be seen from FIG. 4, the eighth leg of the step-down integrated circuit IC1 is connected to the cathode terminal of the fourth diode D4, the other end of the fourth capacitor C4, the other end of the ninth resistor R9, and the tenth resistor R10. The other end, the other end of the eleventh resistor, the other end of the fourth resistor R4, the other end of the third capacitor C3, and the other end of the seventh capacitor C7, the sixth leg and the second step of the step-down integrated circuit IC1 The fifth leg is connected to one end of the fourth capacitor C4, the other end of the first inductor L1, and one end of the first resistor R1. The other end of the first resistor R1 is connected to one end of the second resistor R2, and the second resistor R2 is The other end is connected to one end of the eleventh resistor R11 and the anode end of the third diode D3, and the cathode end of the third diode D3 is connected to the first leg and the second diode D2 of the step-down integrated circuit IC1. The cathode terminal and one end of the seventh capacitor C7, the second leg of the step-down integrated circuit IC1 is connected to one end of the ninth resistor R9, one end of the tenth resistor R10, and one end of the second inductor L2, and the second inductor The other end of the L2 is connected to one end of the twelfth resistor R12, one end of the thirteenth resistor R13, and the twelfth One end of the container C12, sixth electrical One end of the container C6, the positive electrode terminal LED+ of the light emitting diode circuit board 300, the other end of the third resistor R3, and the other end of the fifth resistor R5, and one end of the third resistor R3 is connected. The anode end of the diode D2, the third leg of the step-down integrated circuit IC1 is connected to one end of the third capacitor C3, and the fourth leg of the step-down integrated circuit IC1 is connected to one end and the fifth of the fourth resistor R4. One end of the resistor R5; wherein the first resistor R1 and the second resistor R2 are connected in series, and can be replaced by an equivalent function resistor; wherein the ninth resistor R9 and the tenth resistor R10 are connected in parallel, It can be replaced with an equivalent function resistor.

As can be seen from FIG. 4, the LED output current ripple suppression circuit board 200 includes an output current ripple suppression circuit and an output control circuit, and the output current ripple suppression circuit includes an output current ripple suppression integrated circuit IC2, and a thirteenth. Resistor R13, fourteenth resistor R14, fifteenth resistor R15, sixteenth resistor R16, seventeenth resistor R17, sixth resistor R6, eighth capacitor C8, ninth capacitor C9, tenth The capacitor C10 and the twelfth capacitor C12; the output control circuit includes a first diode D1, a seventh resistor R7, an eighth resistor R8, an eighteenth resistor R18, a fifth capacitor C5, and an eleventh capacitor C11. And a metal oxide semiconductor field effect transistor M1 (Metal Oxide Semiconductor Field Effect Transistors, MOSFET), wherein the seventh resistor R7, the eighth resistor R8, and the eighteenth resistor R18 are connected in parallel.

As shown in FIG. 4, the first leg of the output current ripple suppression integrated circuit IC2 is connected to the other end of the fourteenth resistor R14 and one end of the ninth capacitor C9, and one end of the fourteenth resistor R14 is connected to the thirteenth resistor R13. The other end of the thirteenth resistor R13 is connected to one end of the twelfth capacitor C12 and the positive terminal LED+ of the LED circuit of the LED board 300, and the output current ripple suppression integrated circuit IC2 The second leg is connected to the negative voltage terminal V-4 of the second full-wave rectifier BR2 or the negative voltage terminal V-, and the third leg of the output current ripple suppression integrated circuit IC2 is connected to one end of the tenth capacitor C10 and the fifteenth resistor. One end of the device R15, the fourth leg of the output current ripple suppression integrated circuit IC2 is connected to one end of the sixth resistor R6, and the other end of the sixth resistor R6 is connected to one end of the seventh resistor R7, and the output current ripple suppression integrated circuit is outputted. The fifth leg of IC2 is connected to one end of the seventeenth resistor R17, and the other end of the seventeenth resistor R17 is connected to the gate of the metal oxide semiconductor field effect transistor M1, and the output current ripple suppressing integrated circuit IC2 is The six legs are connected to one end of the sixteenth resistor R16, and the other end of the sixteenth resistor R16 is connected to the drain of the metal oxide semiconductor field effect transistor M1 and the negative terminal LED of the light emitting diode circuit; the metal oxide semiconductor A fifth capacitor C5 is connected between the drain and the source of the field effect transistor M1, and the source of the metal oxide semiconductor field effect transistor M1 is connected to one end of the seventh resistor R7 and one end of the eighth resistor R8. One end of the eighteenth resistor R18 The other end of the eleventh capacitor C11 and the anode end of the first diode D1, the gate of the metal oxide semiconductor field effect transistor M1 is connected to one end of the eleventh capacitor C11 and the cathode end of the first diode D1. The first diode D1 is a Zener Diode.

As can be seen from FIG. 4, the LED circuit of the LED board 300 is composed of a plurality of LEDs connected in series or a plurality of LEDs connected in parallel or a plurality of LEDs connected in series and in parallel. The LED board 300 is provided with a positive-emitting terminal LED+ of the LED circuit and a negative LED-LED of the LED circuit for connecting the illumination driving circuit board 100 and the LED output current ripple suppression circuit board. 200.

As shown in FIG. 5, it is a block diagram of the configuration of the creation lighting circuit board. As can be seen from FIG. 5, the creation lighting circuit board includes the illumination driving circuit board 100, and the output current ripple suppression of the LED output. The circuit board 200 and the LED board 300 have a left-right two-end and a two-column feature at each end of the LED, and the first AC input ACL and the second AC are disposed on the illumination driving circuit board 100. The input terminal ACN, the DC positive voltage terminal VC, the LED terminal positive electrode LED+ and the negative voltage terminal V-, the LED circuit board 300 is provided with a light-emitting diode circuit positive terminal LED+ and a light-emitting diode circuit Negative terminal LED-; light-emitting diode circuit of the LED circuit board 300; positive electrode terminal LED+ connection lighting driver circuit board 100 light-emitting diode circuit positive terminal LED+ and light-emitting diode illumination output current ripple suppression circuit The light-emitting diode circuit positive electrode LED+ of the board 200; the light-emitting diode circuit negative LED of the light-emitting diode circuit board 300-connecting the light-emitting diode output current ripple suppression circuit board 200 light-emitting diode circuit Negative terminal LED-; LED output current ripple suppression circuit board 200 is configured with a first AC input terminal ACL, a second AC input terminal ACN, a DC positive voltage terminal VC, a LED terminal positive LED LED, and a light emitting Dipole The negative terminal LED- and the negative voltage terminal V-, the DC positive voltage terminal VC is connected to the DC positive voltage terminal VC of the illumination driving circuit board 100, and the light emitting diode circuit of the LED output current ripple suppression circuit board 200 is positively charged. The LEDs of the LEDs are connected to the LEDs of the LEDs of the illumination driver circuit board 100 and the LEDs of the LEDs of the LEDs 300 and the positive terminals of the LEDs of the LEDs 300, and the negative voltage terminals of the LEDs are connected to the illumination driver circuit board 100. The negative voltage terminal V-, the negative terminal of the LED circuit is connected to the LED terminal of the LED circuit of the LED circuit board 300.

FIG. 6 is a schematic diagram showing the arrangement of the upper electronic components of the illumination driving circuit board of the creation lighting circuit board. The first full-wave rectifier BR1 of the rectifying and filtering circuit is disposed on the leftmost layer of the upper layer of the illumination driving circuit board 100, and the first resistor R1 The fourth capacitor C4 is disposed on the right side of the first full-wave rectifier BR1, and the first resistor R1 is disposed on the first The upper position of the fourth capacitor C4; the second resistor R2 is disposed on the right side of the first resistor R1, the ninth resistor R9 and the tenth resistor R10 are disposed on the right side of the fourth capacitor C4, and the eleventh resistor R11 is disposed on the right side On the right side of the second resistor R2, the step-down integrated circuit IC1 is disposed below the ninth resistor R9, the third diode D3 is disposed on the right side of the eleventh resistor R11, and the fourth resistor R4 is disposed on the right side. The third capacitor C3 is disposed on the upper side of the fourth resistor R4, the second diode D2 is disposed on the right side of the third diode D3, and the fifth resistor R5 is disposed on the right side of the step-down integrated circuit IC1. On the right side of the four resistor R4, the twelfth resistor R12 is disposed on the right side of the fifth resistor R5, the third resistor R3 is disposed on the upper side of the fifth resistor R5, and the seventh capacitor C7 is disposed on the second diode The position below D2.

FIG. 7 is a schematic diagram showing the arrangement of electronic components under the illumination driving circuit board of the creation lighting circuit board. The first connector CN1 of the rectifying and filtering circuit is disposed on the leftmost side of the illumination driving circuit board 100, and the second capacitor C2 is disposed in the first On the right side of a connector CN1, the first fuse F1 is disposed above the second capacitor C2, the first capacitor C1 is disposed on the right side of the second capacitor C2, and the first inductor L1 is disposed above the first capacitor C1. The wave absorber U1 is disposed on the right side of the first capacitor C1, the fourth diode D4 is disposed on the right side of the surge absorber U1, the second inductor L2 is disposed on the right side of the fourth diode D4, and the sixth capacitor C6 is disposed. The right side of the fourth diode D4 and the lower side of the second inductor L2; the DC positive voltage terminal VC, the LED positive terminal LED+ and the negative voltage terminal V- are disposed at the rightmost side of the illumination driving circuit board 100. .

As shown in FIG. 8 , the schematic diagram of the electronic components of the upper layer of the output current ripple suppression circuit board of the light-emitting diode circuit of the creative lighting circuit board is shown, the DC positive voltage terminal VC, the LED terminal of the light-emitting diode circuit, and the light-emitting diode Body circuit positive terminal LED+ and negative The voltage terminal V- is disposed on the leftmost side of the LED output current ripple suppression circuit board 200, and the metal oxide semiconductor field effect transistor M1 is disposed on the right side of the LED terminal of the LED circuit, and the thirteenth resistor R13 The fourth resistor R14 is disposed on the right side of the thirteenth resistor R13, and the seventh resistor R7 is disposed on the right side of the thirteenth resistor R14, and the eighth resistor is disposed on the right side of the positive terminal LED+ of the LED circuit. The R8 is disposed on the right side of the seventh resistor R7, the eighteenth resistor R18 is disposed on the right side of the eighth resistor R8, and the fifth capacitor C5 is disposed on the upper side of the fourteenth resistor R14 and the seventh resistor R7. The eleventh capacitor C11 is disposed on the right side of the fifth capacitor C5, the first diode D1 is disposed on the right side of the eleventh capacitor C11, the sixth resistor R6 is disposed on the right side of the first diode D1, and the tenth capacitor C10 Arranged on the right side of the first diode D1, the fifteenth resistor R15 is disposed on the right side of the sixth resistor R6 and above the tenth capacitor C10, and the second full-wave rectifier BR2 is disposed on the tenth capacitor C10 and the tenth The right side of the five resistor R15; the seventeenth The resistor R17 is disposed on the right side of the metal oxide semiconductor field effect transistor M1, the output current ripple suppression integrated circuit IC2 is disposed on the right side of the seventeenth resistor R17, and the ninth capacitor C9 is disposed on the output current ripple suppression integrated circuit IC2. On the right side, the sixteenth resistor R16 is disposed above the seventeenth resistor R17 and the output current ripple suppression integrated circuit IC2.

FIG. 9 is a schematic diagram showing the arrangement of electronic components under the LED output current ripple suppression circuit board of the creation lighting circuit board, and the second connector CN2 is disposed on the LED output current ripple suppression circuit board 200. On the far right side, the second fuse F2 is disposed on the upper left side of the second connector CN2, the third fuse F3 is disposed on the lower left side of the second connector CN2, and the third inductor L3 and the eighth capacitor C8 are disposed on the second connector. On the left side of CN2, The twelfth capacitor C12 is disposed on the left side of the eighth capacitor C8.

The novel creation is practical and can increase the heat dissipation area of the electronic component of the creation, and is provided with a light-emitting diode illumination output current ripple suppression circuit board 200 to obtain the minimum illumination flicker effect, and can be installed in the light-emitting two In the lamp body of the polar body lighting, the new patent application is filed according to law, and the reviewing committee is invited to give this new patent as soon as possible.

Claims (10)

An illumination circuit board comprising: an illumination driving circuit board having a first alternating current input terminal, a second alternating current input terminal, a direct current positive voltage terminal, a positive side of the light emitting diode circuit, and a negative voltage terminal, the first An AC input terminal and the second AC input terminal are connected to the AC power source; an LED output current ripple suppression circuit board has a first AC input terminal, a second AC input terminal, a DC positive voltage terminal, and a light emitting diode a negative terminal of the circuit, a positive terminal of the LED circuit and a negative voltage terminal, wherein the first AC input terminal and the second AC input terminal are connected to an AC power source, and the DC positive voltage terminal is connected to the DC positive voltage terminal of the illumination driving circuit board. The positive terminal of the LED circuit is connected to the positive terminal of the LED circuit of the illumination driving circuit board, the negative voltage terminal is connected to the negative voltage terminal of the illumination driving circuit board; and a light emitting diode circuit board is The positive terminal of the LED circuit and the negative terminal of the LED circuit, and the positive terminal of the LED circuit is connected to the positive terminal of the LED circuit of the illumination driving circuit board The light-emitting diode circuit outputs a current-corrugated circuit board, and the negative terminal of the light-emitting diode circuit is connected to the negative terminal of the light-emitting diode circuit, and the light-emitting diode circuit of the output current ripple suppression circuit board is connected to the negative side of the light-emitting diode circuit. . The lighting circuit board of claim 1, wherein the upper circuit board of the lighting driving circuit board is configured with a first full-wave rectifier, a fourth capacitor, a first resistor, and a ninth resistor in a leftmost to rightmost order. Second resistor, step-down integrated circuit, eleventh resistor, third diode, fourth resistor, third capacitor, seventh capacitor, second diode, fifth resistor, Three resistors and a twelfth resistor. For example, the lighting circuit board of claim 1 of the patent scope, wherein the lighting drive The lower circuit board of the moving circuit board is configured with a first connector, a first fuse, a second capacitor, a first inductor, a first capacitor, a surge absorber, a fourth diode, and a first order from the leftmost to the rightmost The second inductor, the sixth capacitor, the DC positive voltage terminal, the positive terminal of the light emitting diode circuit and the negative voltage terminal. For example, in the lighting circuit board of claim 1, wherein the upper circuit board of the LED output current ripple suppression circuit board is configured with a DC positive voltage terminal and a negative terminal of the LED circuit according to the leftmost to the rightmost order. , the positive terminal of the light-emitting diode circuit, the negative voltage terminal, the metal oxide semiconductor field effect transistor, the thirteenth resistor, the fourteenth resistor, the seventeenth resistor, the seventh resistor, the sixteenth resistor , an eighth resistor, an output current ripple suppression integrated circuit, an eighteenth resistor, a first diode, a sixth resistor, a ninth capacitor, a fifteenth resistor, a tenth capacitor, and a second full-wave rectifier . The lighting circuit board of claim 1, wherein the lower circuit board of the LED output current ripple suppression circuit board is configured with a twelfth capacitor, an eighth capacitor, and a third inductor in a leftmost to rightmost order. , second fuse, third fuse and second connector. The lighting circuit board of claim 1, wherein the light emitting diode circuit board is connected by a plurality of light emitting diodes in series or a plurality of light emitting diodes are connected in parallel or a plurality of light emitting diodes are connected in series and in parallel. composition. The lighting circuit board of claim 2, wherein the first resistor of the upper circuit board of the lighting driving circuit board and the second resistor are connected in series, and can be replaced by a single resistor of equivalent function. For example, the lighting circuit board of claim 2, wherein the lighting drive The ninth resistor of the upper circuit board of the dynamic circuit board and the tenth resistor are connected in parallel and can be replaced by a single resistor of equivalent function. The lighting circuit board of claim 4, wherein the thirteenth resistor of the upper circuit board of the LED output current ripple suppression circuit board and the fourteenth resistor are connected in series to be equivalent A single resistor replacement for the function. The lighting circuit board of claim 4, wherein the seventh resistor, the eighth resistor and the eighteenth resistor of the upper circuit board of the LED output current ripple suppression circuit board are connected in parallel The connection can be replaced with a single resistor of equivalent function.