A simple Joule Thief circuit.

5 years ago 3963
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments


A simple single transistor Joule Thief circuit.

To run this simulation, click on "Open in Editor" then do:


save the file when prompted and then do:

Ctrl+R > Transient > Run

A simple single transistor Joule Thief circuit.



for background and other links.

R1 represents the source resistance of the input supply.

V1 is a pulse source set to ramp up VCC from 0V to 1.5V to kick the circuit into oscillation.

The circuit will start with V1 set to a simple 1.5V source but will take a little longer to build up to full oscillations.

Note that the so-called Joule Thief is an example of a type of circuit referred to as a Blocking Oscillator:



Single transistor Joule Thief circuit.


ID Name Designator Quantity
1 100 R1 1
2 1k R2 1
3 100u L1,L2 2
4 2N3904 Q1 1
5 LED D1 1
6 Ammeter AMMETER 1
7 PULSE(0 1.5 0 1u) VBATT 1


The owner does not allow comments in this project now

Comments (0)

你现在访问的是EasyEDA海外版,使用建立访问速度更快的国内版 https://lceda.cn(需要重新注册)
如果需要转移工程请在个人中心 - 工程 - 工程高级设置 - 下载工程,下载后在https://lceda.cn/editor 打开保存即可。
有问题联系QQ 3001956291 不再提醒
svg-battery svg-battery-wifi svg-books svg-more svg-paste svg-pencil svg-plant svg-ruler svg-share svg-user svg-logo-cn svg-double-arrow
We use cookies to offer you a better experience. Detailed information on the use of cookies on this website is provided in our Privacy Policy. By using this site, you consent to the use of our cookies.