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    Joule Thief 1.0 Kit

 

 

 

May 2012, Rev 1

 

− 1 − 

http://www.EasternVoltageResearch.com 

Joule Thief 1.0 

 
 

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(Please note that the image above represents our initial prototype devices.  The device 

you will receive when ordering will look somewhat different.) 

 
 
 

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Содержание Joule Thief 1.0

Страница 1: ...h hi ie ef f 1 1 0 0 K Ki it t Please note that the image above represents our initial prototype devices The device you will receive when ordering will look somewhat different I In ns st tr ru uc ct t...

Страница 2: ...take them away to play with them They are so fun and the light they produce is spectacular Joule Thief circuits have been around for a very long time There are many different variations on the tradit...

Страница 3: ...charging up across capacitor C1 which eventually charges up sufficient enough at the base of Q1 to turn Q1 ON C1 is charged directly from the battery through resistors R1 and R2 Thus the time constan...

Страница 4: ...Q1 R3 is used to prevent the peak discharge currents from C1 from overly stressing the base emitter junction of Q1 Once C1 discharges to a voltage less than 0 6V Q1 turns OFF again and Q2 turns ON Thi...

Страница 5: ...e leads are bent on the backside of the board to prevent the part from falling out before soldering The part is then soldered securely to the board and the remaining lead length is clipped off It is a...

Страница 6: ...or brown black brown R3 1 330 ohm Resistor orange orange black R4 CAPACITORS 1 15pF Ceramic Capacitor marked 15J C1 1 22uF Electrolytic Capacitor C2 DIODES 2 LED White T 1 3 4 D1 D2 SEMICONDUCTORS 2 2...

Страница 7: ...Joule Thief 1 0 Kit May 2012 Rev 1 7 http www EasternVoltageResearch com Joule Thief 1 0 Joule Thief 1 0 Component Layout Diagram...

Страница 8: ...ions Also please be sure to take us seriously when we say that good soldering is the key to the proper operation of your circuit Use a 25W soldering pencil with a clean sharp tip DO NOT USE a high pow...

Страница 9: ...rawing 13 Install SW1 switch Note that there is no incorrect way to install this switch The switch may be inserted in any orientation 14 Install the 2 AA battery clips to the underside of the board Co...

Страница 10: ...enjoyed the construction of this Eastern Voltage Research Kit As always we have tried to write this instruction manual in the easiest most user friendly format that is possible As our customers we va...

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