Circuit Lake

Electronic Project and Circuit Collection


Reverse Engineering with Photoshop

November 27, 2008 By: admin Category: Basic, Tutorial No Comments →

If you want to learn Reverse Engineering you can use photoshop as aid tools. For example, This 12-keys keypad failed after years of daily use. No schematic or replacement parts from the original manufacturer. The only option was to replace it with an off-the-shelf telephone-style keyboard.Following the maze of each and every PCB track in […]

How To Reliably Protect CMOS Circuits Against Power Supply Overvoltaging

June 04, 2008 By: admin Category: Tutorial No Comments →

By Mike Byrne INTRODUCTION All IC processes have an intrinsic breakdown voltage associated wlth them. and this results in a maximum voltage stress which can be applied to any device fabricated on that process. Aa a result, all IC manufacturers give an Absolute Maximum Ratings specification for their devices. This generally gives the maximum voltage […]

The Basic De-soldering Guide

October 16, 2007 By: admin Category: Basic, Tutorial No Comments →

Desoldering is the removal of solder and components from a PCB for troubleshooting, for repair purposes, and to salvage components. The tools for desoldering are solder wick, heat guns, desoldering pump, removal alloys, removal fluxes, vacuum and pressure pumps with specialized heater tips and nozzles, Rework stations (used to repair printed circuit boards that fail […]

The Basic Soldering Guide

October 16, 2007 By: admin Category: Basic, Tutorial No Comments →

Soldering is an electronics process join together two or more metal by melting and flowing a filler metal (having a relatively low melting point) into the joint. In other words, you use a metal that has a low melting point to adhere the surfaces to be soldered together. The filler metal used in the process […]