哪位大侠推荐一下频压转换芯片或电路

发表于 2009-7-16 21:50

电机测速用,转速在10~100Hz之间,要求用单电源,电路结构要简单.

发表于 2009-7-16 22:31

怎么没人回答呢?

发表于 2009-7-16 22:54

发表于 2009-7-16 22:56

发表于 2009-7-17 12:35

111

发表于 2009-7-17 13:35

Datasheets found :: 4

Page: | 1 |

Nr.	Part Name	Description	Manufacturer
1	M51722	F-V Converter with Multiplexer	Mitsubishi Electric Corporation
2	NJM4151	V-F/F-V Convertor	New Japan Radio
3	NJM4151D	V-F/F-V CONVERTOR	New Japan Radio
4	NJM4151M	V-F/F-V CONVERTOR	New Japan Radio

Datasheets found :: 4

Page: | 1 |

发表于 2009-7-17 13:44

LM2917 - Frequency to Voltage Converter - 08/26/1983
LM2917 - Frequency to Voltage Converter LM2917 - Frequency to Voltage Converter

LM2907 - Frequency to Voltage Converter - 08/26/1983
LM2907 - Frequency to Voltage Converter LM2907 - Frequency to Voltage Converter

LM2917EP - Enhanced Plastic Frequency to Voltage Converter - 06/07/2004
LM2917EP - Enhanced Plastic Frequency to Voltage Converter LM2917EP - Enhanced Plastic Frequency to Voltage Converter

LM2907EP - Enhanced Plastic Frequency to Voltage Converter - 06/07/2004
LM2907EP - Enhanced Plastic Frequency to Voltage Converter LM2907EP - Enhanced Plastic Frequency to Voltage Converter

发表于 2009-7-17 14:27

我正在做一个直流电机定速控制电路,有了各位的帮助看来是有望完成啦

发表于 2009-7-17 15:17

AD650需双电源,可是我没有...

发表于 2009-7-19 01:38

发表于 2009-7-19 13:32

频率太低，用模拟电路来做反应太慢

发表于 2009-7-19 13:55

这么低的频率，而且还要控制，可能还有频率显示及按键，用单片机最合适。

发表于 2009-7-20 20:52

不过主要是如何控速,测得频率后若用软件控制电机速度不知是否平稳

急啊急