
Void Electronics
チャンネル登録者数 2210人
2万 回視聴 ・ 906いいね ・ 2024/12/27に公開済み
This video explains how to adjust the offset and bias of transistor audio amplifiers and why you might want to perform these adjustments. To explain this, we go through the simplified schematic of a class AB amplifier.
00:00 Intro
00:25 Basic class B amplifier
02:22 Class AB amplifier
03:43 Thermal instability
05:02 Bias adjustment
06:18 Closed loop class B amplifier
07:20 Understanding the offset voltage
08:06 Offset adjustment
08:35 Identifying the trimpots on the PCB
09:42 How to adjust the bias
10:55 How to adjust the offset
12:19 Looking at crossover distorsion using the oscilloscope
13:53 Outro
How I built the dummy load used in this video: • Designing An Adjustable Dummy Load For Aud...
Sansui G-5700 service manual: elektrotanya.com/sansui_g-5700_g-6700_g-7700_sm.pd…
コメント
関連動画

TSP #23 - Tutorial on the Design and Characterization of Class-B and AB Amplifiers
263,504 回視聴 - 12 年前

Sanyo DCX 3300KB Amplifier Repair: STK Hybrids Replacement, Tests, THD Measurements
457 回視聴 - 1 か月前

#113: Basics of Transistor bias point and the class of amplifier operation
291,672 回視聴 - 11 年前

The Ultimate Op-Amp Comparison - Bandwidth, Slew Rate, Frequency Response, CMRR & More!
91,903 回視聴 - 1 年前

Measuring DC Offset on a HiFi Amplifier, DC offset & Mains Voltage Adjustment How To, HiFi
18,722 回視聴 - 4 年前

Checking DC Offset On Old Vintage Stereo Amplifiers And Receivers - Audio Repair And Restoration
20,078 回視聴 - 5 年前
使用したサーバー: directk
再生方法の変更
動画のデフォルトの再生方法を設定できます。埋め込みで見れるなら埋め込みで見た方が良いですよ。
現在の再生方法: 通常
コメントを取得中...
コメントを取得中...