Circuit Wiring

This is a Circuits of fluorescent lamp with a power of 40 Watt - The ambit works abundant like the aboriginal Strobos. except that a beaming tube is used. Thus, the beaming tube zündbereit charcoal constant, the two electrodes of the tube are continuously agent Ta1 supplied with electricity.

This accepted makes the two attrition affairs of the afterglow tube in, so the mercury evaporates into the tube and the electron discharge is simplified. Ta2 Returns on the rectifier “D1-D4 , the voltage of the multivibrator, the agitation abundance of the tube is amenable for. The acceleration of the AMV is with potentiometer P1 set. The beating afresh passes through R3 to T3, is amplified there and controls the bent for the triac, the administering of these alternates. If so, afresh the ambit through the tube and the balance closes and the tube can ablaze up. 

The pulses of T3 additionally access via the capacitor C3 to the aboideau of the thyristor Th1. Simultaneously with the closing “of the ambit for the tube is Th1 -conductive and creates a abbreviate in the agitation braid accepted flow, which in about-face generates a aerial voltage on the secondary. This voltage of several thousand volts is now operational on anchorage J7 to a wire alfresco of the tube. The aerial voltage at the tube provides the all-important starting voltage so that it starts and can absolutely ablaze up until the thyristor Th1 locks again.

Part List:

C1/C2 2x  Elco standing 1μF/16V

C3 1x  Ker. Scheibenkondens. 0.1 μF

C4 1x  HV-capacitor 1μF 350V axial

C5 1x  Elko stand. 470μF 25 V

C6 1x  Poly condensation. 0.068 μF 630V

D1-4 4x  Diode 1N4001

D5 1x   Diode 1N4007

L1 1x  Ignition coil (such as the normal speed camera strobe)

P1 1x  Poti 6mm 2.2 M

R1/R4 2x  Resistor 470R 1 / 4 W

R2/R9 2X  Resistor 47K 1 / 4 W

R3 1x  Resistor 10K 1 / 4 W

R5 1x  Resistor 270R 1 / 4 W

R6 1x  Resistor 1.2 K 1 / 4 W

R7 1x  Resistor 22K 1 / 4 W

R8 1x  Resistor 120K 1 / 4 W

Si1 1x  Backup medium time 160mA

Si2 1x  A pair of fuse holders

T1/T2 2x  Transistor BC557B

T3 1x  Transistor BC547B

Ta1 1x  Transformer 2x 2x 5V 500mA 5VA

TA2 1x  Trafo 1,2 VA 9Volt

Th1 1x  Thyristor 4A 400V T0220

TR1 1x  Triac 4A 400V T0220

The credibility J1 and J2 to affix with the two electrodes on one ancillary of the beaming tube. The credibility J3 and J4 , affix with the electrodes on the added side. Now amplitude a attenuate insulated!! Wire forth the tube and cement it eg. Scotch band firmly. This wire carries the agitation voltage of several thousand volts to the tube so that they burn properly. This wire, affix one end with J7 on the board, while the added end charge necessarily be isolated. This wire leads except the aerial voltage pulses that is additionally voltage. The credibility with J5 and J6 of the lath is one, tube fitting, balance clamped to (choke, there’s the ablaze trading.) Finally there is the voltage at J8 and J9. Now it should somehow already beam or flash, with the potentiometer, the beam amount can be set.

40 W Fluorescent Lamps Diagram Schematics

Component List :

R1 = 2,7R

R2 = 2,7R

C1 = 1uF

C2 = 1uF

C3 = 100uF

C4 = 220uF

C5 = 100uF

C6 = 100uF

C7 = 220uF

C8 = 0.1uF
C9 = 0.1uF

C10 = 470uF

C11 = 470uF

U1 = ULN3750B

This simple mosfet power audio amplifier circuit, with TL071C and 2 mosfet power amplifiers can deliver up to 45W on 8 ohm. This schematic is based on Siliconix application and is based on variations of voltage on the 2 resistors serial inserted on the voltage supplier of the operational amplifier driver.
The MosFet transistor must be mounted on a heatsink at least 1K/W.



Amplifier efficiency is 70%, distortions at cut frequency were at most 0.2% at 20Hz on 8ohm and 10W. With a power supply of +- 30V the mosfet audio amplifier can deliver 45W on 8 ohm and 70w on 4 ohm. Remember that this audio amplifier is not protected on shortcircuits so everytime you switch on check to see if the speaker is connected.

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