初級音響電子入門工作坊

KK Sir 忙緊CD 講座 power point, 抽小小時間放小小料俾大家知啦:

基本電子原理, Ohms Law, 二,三極管, MOSFET特性, 很多不能盡綠

基本常用電路分柝, 解說

打造你的第一塊PCB, 會用橋式整流為例, 使學員三十分鐘內做出橋式整流+LM317 穩壓, 應用如胆機燈絲穩壓及屏壓
(手畫PCB, 電腦如何畫PCB, 屋企如何用三十分鐘做PCB, 工廠PCB制造過程)

機箱結構, Floor planning

教你睇 Datasheet, 以發揮元件最高性能

打造 40W x 4 power amp (Philips 旗艦級 Class AB amp TDA8571J), ONKYO機最愛使用型號

如何正確使用工具, 儀器

工具, 普通儀器, 普通零件, 發燒零件, 選購指南

學員打造整個功放後需要用儀器進行量度:
Frequency response
Channel seperation
S/N ratio

目的使學員掌握技術後能應用在 DAC, CD機, 前級, 後級 及電源上

Audio PCB layout 秘技分享

學員完成power amp後, 會集體評估音色及結構, 導師並會一對一進行對學員習作作出技術意見, 保證學員電子原理及打造技術同樣得益

四個課程, 一個收費, 仲有得 "真正" 砌一部熟於你的 "個性" 的 Power amp 取回家, 仲諗 ? 心動不如馬上行動

2 Channel

5.1 Channel

and more.........

Why your Preamp have "hum" noise? it is easy to understand by learning some basic theory.

Dear Kdiy,

The amp is use as a tools which teach the student about the theory and measurement. When you know how is working and measure about it, you will know the traditional amp. measurement too.

Don't look this amp is too complex, it is a Class AB amp which is using Philips TDA8571J 4 x 40W.

Voltage is using 12V. Single power supply.

Frequency response (from datasheet) is 20-20KHz.

We using frequency response as example, the student will make the amplifier according to the datasheet provided, but he/she will measure the actual result compare with the "datasheet" provided, the result may be not same as datasheet describe, this is the chance to give the student how to make and change components setting to make the result close to datasheet describe.

Plus.... S/N ratio...etc

This is the aim of our DIY begineer course.


我們宗旨, 讓學員學懂原理及制作, 拿作品回家才有喜悅, 並能學以致用

不是照說明書照砌這樣兒戲

學習 理論-> 知識擁有 -> 制作過程 -> 調較測試 -> 成果改進 = 享受成果, 終生受用



Hope this help.
KK.Ho

Dear all students,

Please bring the following:

1. A note pad (you may need to write down some tips and note during the lecture time)

2. NO NEED to bring any tools, we will provide enough sets.

3. You may need to bring the plastic container (you better to use the empty plastic box from CDR (50 sets), it is good for PCB etching use)

Please check your email at SAT night, we will have final notice to all students.

Regards,
KK.Ho