我用精密可调电阻来调节LED光源的电压,控制LED灯亮度,从而改变接收光电池的光电信号.可在调节可调电阻时,总是发现,我想调大时,它要先变小,然后才变大,同样想调小的时候,先变大然后变小.
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我用精密可调电阻来调节LED光源的电压,控制LED灯亮度,从而改变接收光电池的光电信号.可在调节可调电阻时,总是发现,我想调大时,它要先变小,然后才变大,同样想调小的时候,先变大然后变小.
我用精密可调电阻来调节LED光源的电压,控制LED灯亮度,从而改变接收光电池的光电信号.可在调节可调电阻时,总是发现,我想调大时,它要先变小,然后才变大,同样想调小的时候,先变大然后变小.中间的空隙很大.而且调好后,光电信号波动很大.希望光电信号稳定
我用精密可调电阻来调节LED光源的电压,控制LED灯亮度,从而改变接收光电池的光电信号.可在调节可调电阻时,总是发现,我想调大时,它要先变小,然后才变大,同样想调小的时候,先变大然后变小.
连接导线越短越好而且尽量别去碰它
电源电压要稳定
光电信号波动很大有可能是光电池的受光面受光不均匀,而且有外界光线干扰的缘故,让LED离光电池近一些,最好把他们封闭起来
精密可调电阻应当有好多型号可以参考的,精度范围有从5%~20%精度不等,你可以参看以下型号去测试,看是否有合适的元器件来用。
精密可调电阻3313、3314、3224系列(贴片类的):
3313J-1-101E,3313J-1-102E,3313J-1-103E,3313J-1-104E,3313J-1-201E;
3313J-1-202E,3313J-1-203E,331...
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精密可调电阻应当有好多型号可以参考的,精度范围有从5%~20%精度不等,你可以参看以下型号去测试,看是否有合适的元器件来用。
精密可调电阻3313、3314、3224系列(贴片类的):
3313J-1-101E,3313J-1-102E,3313J-1-103E,3313J-1-104E,3313J-1-201E;
3313J-1-202E,3313J-1-203E,3313J-1-501E,3313J-1-502E,3313J-1-503E;
3314J-1-101E,3314J-1-102E,3314J-1-103E,3314J-1-104E,3314J-1-201E;
3314J-1-202E,3314J-1-203E,3314J-1-501E,3314J-1-502E,3314J-1-503E;
3314G-1-101E,3314G-1-102E,3314G-1-103E,3314G-1-104E,3314G-1-201E;
3314G-1-202E,3314G-1-203E,3314G-1-501E,3314G-1-502E,3314G-1-503E;
3224W-1-101E,3224W-1-102E,3224W-1-103E,3224W-1-104E,3224W-1-201E;3224W-1-202E,3224W-1-203E,3224W-1-501E,3224W-1-502E,3224W-1-503E;
精密可调电阻3296、3362、3386、3006、3266、3590系列(插件类的):
3296W、3296X、3296Y、3296P
3296W-1-101,3296W-1-102,3296W-1-103,3296W-1-104,3296W-1-105;
3296W-1-201,3296W-1-202,3296W-1-203,3296W-1-204,3296W-1-500;
3296W-1-501,3296W-1-502,3296W-1-503,3296W-1-504;
3362P、3362S、3362M、3362W
3362P-1-101,3362P-1-102,3362P-1-103,3362P-1-104,3362P-1-105;
3362P-1-201,3362P-1-202,3362P-1-203,3362P-1-204,3362P-1-500;
3362P-1-501,3362P-1-502,3362P-1-503,3362P-1-504;
3386P-1-101,3386P-1-102,3386P-1-103,3386P-1-104,3386P-1-105;
3386P-1-201,3386P-1-202,3386P-1-203,3386P-1-204,3386P-1-500;
3386P-1-501,3386P-1-502,3386P-1-503,3386P-1-504;
3006P-1-101,3006P-1-102,3006P-1-103,3006P-1-104,3006P-1-105;
3006P-1-201,3006P-1-202,3006P-1-203,3006P-1-204,3006P-1-500;
3006P-1-501,3006P-1-502,3006P-1-503,3006P-1-504;
3266W-1-101,3266W -1-102,3266W -1-103,3266W -1-104,3266W -1-105;
3266W -1-201,3266W -1-202,3266W -1-203,3266W -1-204,3266W -1-500;
3266W -1-501,3266W -1-502,3266W -1-503,3266W -1-504;
3590S-2-101,3590S-2-102,3590S-2-103,3590S-2-104,3590S-2-201;
3590S-2-202,3590S-2-203,3590S-2-501,3590S-2-502,3590S-2-503
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