DIY Circuits

CY7C68013A Projects - created

Hilary Cheng — Thu, 12 Apr 2007 15:01:24 +0800

CY7C68013A Projects USB-FX2 Board from Wolfgang Wieser The Uncomplicated Universal Usb board from Marko Cebokli USB2LPT – Cloning instructions for Release 1.2 from Henrik Haftmann

Microcontroller

Hilary Cheng — Thu, 12 Apr 2007 14:54:04 +0800

Microcontroller USB CY7C68013A Projects

Digital Unit

Hilary Cheng — Thu, 12 Apr 2007 14:51:04 +0800

Digital Unit Microcontroller Analog Unit Low Power Amplifier Any Analog Circuits

My Projects

Hilary Cheng — Sat, 07 Apr 2007 11:10:11 +0800

Battery Powered FM Radio -- Already Finished, Need to Write It. FM Radio Clock with RDS Features -- Near 70% Finished USB(High Speed) for JTAG -- Circuit Design

TDA2822M Dual Low Voltage Power Amplifer

Hilary Cheng — Thu, 05 Apr 2007 10:34:09 +0800

TDA2822M Dual Low Voltage Power Amplifer TDA2822M is a Low Voltage Audio Amplifier. It is good for those application which use battery supply. Bill of Material * 1 TDA2822M (Dip Package) * 1 10uF E-Cap (For Stabilizing the Power) * 1 220uF E-Cap (For Amplifier Negative Input) * 1 470uF E-Cap (For Filtering the DC to the Speaker, It will avoid a large circuit flow though the Speaker)

Low Power Amplifier

Hilary Cheng — Thu, 05 Apr 2007 09:27:57 +0800

Low Power Amplifier TDA2822M Dual Low Voltage Power Amplifer Mid Power Amplifier

PCB Making

Hilary Cheng — Mon, 26 Mar 2007 22:48:07 +0800

Photo Etching Toner Transfer Toner Transfer is another way to making PCB. As Thomas P. Gootee tried to using Inkjet Glossy Paper. Print the Circuit Board on Gloossy Paper and use Iron to transfer toner to PCB then etch it. It can produce high quailty PCB with fine pitch.