PWM power regulator for USB soldering iron ZD-20U. Modification of USB soldering iron.

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Published on Apr 20, 2018
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✔ Website with comparison of cashback services - http://coinmaps.ru ► Get back up to 90% of your purchases - http://bit.ly/2iIhRxk USB soldering iron on Aliexpress - http://ali.pub/2drmmy USB soldering iron on Gearbest - http://gbest.by/2drm00 Spare tips for USB soldering iron - http://ali.pub/2drmty ******************************************************* Useful tools and accessories: Heat shrink tube - http://ali.pub/1q2elz High-quality nippers - http://ali.pub/1q2f0y KAINA solder with flux - http://ali.pub/1q2g8i RMA-233 flux - http://ali.pub/1q2gan Active flux NC-559 - http://ali.pub/218s6c Syringe with needles for easy flux application - http://ali.pub/1q2gky Heat-resistant mats - http://ali.pub/1q2ge5 Third hand - http://ali.pub/1q2gsj ***************************************************** Electronic circuit in the simulator - http://tinyurl.com/y75s2jj7 On the right is the factory circuit, on the left is the modified one. ******************************************************* Today I will show you the modification of a USB soldering iron from China. Many people, having bought a USB soldering iron, are faced with the fact that it does not work properly. The soldering iron immediately turns on and does not turn off, the soldering iron may turn on poorly, etc. Basically, the problem is related to the sensitivity of the sensor. Most modifications are related to installing a button instead of a ball and sensor, or installing a resistor to reduce the sensitivity of the sensor. I propose a variant of modification of a USB soldering iron, in which the power and temperature of the soldering iron will be regulated using a PWM controller on the ne555 microcircuit. Also in the video there will be a detailed description of the operation of the PWM controller on the ne555 timer. ******************************************************* On the channel you will find: product reviews comparison of products from China and Fix Price educational videos

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