q*****z 发帖数: 191 | 1 【 以下文字转载自 EE 讨论区 】
发信人: qianboz (口水鸡), 信区: EE
标 题: Class D amplifier
发信站: BBS 未名空间站 (Fri Aug 13 23:56:29 2010, 美东)
Hi,
Not sure if this is the right place to ask this question.
I am trying to amplify a 0-1000 Hz sin signal to drive a 8 ohm EM load. Can
a class D handle the job?
I saw all the specs only go down to 20 Hz.
Also, I would like the output to be zero if the input is zero.
Anyboday familier with this subject?
Thanks a lot in advance. | p********e 发帖数: 16048 | 2 no one can hear such low freequency sound
so why bother make it into music
【 以下文字转载自 EE 讨论区 】
发信人: qianboz (口水鸡), 信区: EE
标 题: Class D amplifier
发信站: BBS 未名空间站 (Fri Aug 13 23:56:29 2010, 美东)
Hi,
Not sure if this is the right place to ask this question.
I am trying to amplify a 0-1000 Hz sin signal to drive a 8 ohm EM load. Can
a class D handle the job?
I saw all the specs only go down to 20 Hz.
Also, I would like the output to be zero if the input is zero.
Anyboday familier with this subject?
T
【在 q*****z 的大作中提到】![](/moin_static193/solenoid/img/up.png) : 【 以下文字转载自 EE 讨论区 】 : 发信人: qianboz (口水鸡), 信区: EE : 标 题: Class D amplifier : 发信站: BBS 未名空间站 (Fri Aug 13 23:56:29 2010, 美东) : Hi, : Not sure if this is the right place to ask this question. : I am trying to amplify a 0-1000 Hz sin signal to drive a 8 ohm EM load. Can : a class D handle the job? : I saw all the specs only go down to 20 Hz. : Also, I would like the output to be zero if the input is zero.
| q*****z 发帖数: 191 | 3 Thanks.
I need it for a research project (not HIFI). | a******s 发帖数: 4052 | | f****i 发帖数: 20252 | 5 A direct-coupled audio amplifier may do the job.
Class D amp has extended upper frequency limit, but not toward the lower
frequency band.
Can
【在 q*****z 的大作中提到】![](/moin_static193/solenoid/img/up.png) : Thanks. : I need it for a research project (not HIFI).
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