q*****z
发帖数: 191 | 1 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. |
r*******r
发帖数: 1014 | 2 for audio signal?
Can
【在 q*****z 的大作中提到】
: 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.
|
c****s
发帖数: 2487 | 3 audio用不着0Hz吧
【在 r*******r 的大作中提到】
: for audio signal?
:
: Can
|
h*******a
发帖数: 9 | 4 Yes, class-D can do it. Design the output LPF carefully. Both half bridge
and H-bridge can output 0 vol.
Can
【在 q*****z 的大作中提到】
: 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.
|
c****s
发帖数: 2487 | 5 想弄出0V调制方式很关键
【在 h*******a 的大作中提到】
: Yes, class-D can do it. Design the output LPF carefully. Both half bridge
: and H-bridge can output 0 vol.
:
: Can
|
E*****a
发帖数: 757 | 6 class D use +/- supplies. 0V is naturally mid point
【在 c****s 的大作中提到】
: 想弄出0V调制方式很关键
|
c****s
发帖数: 2487 | 7 其实不用那么麻烦。H-bridge的负载如果两端的信号同步就是0输出了
TI有个这方面的patent
【在 E*****a 的大作中提到】
: class D use +/- supplies. 0V is naturally mid point
|
