IC693PCM300MP 根据电感、磁芯损耗、直流电阻和饱和电流选择外部电感。通常,如果电感中的峰峰值纹波电流在50 kHz至100 kHz的频率范围内接近饱和电流额定值,则磁芯损耗过大。如果可能,请使用线艺等电感器制造商提供的磁芯损耗计算器。在给定尺寸下,匝数越小的导线提供更高的电感,可以降低纹波电流和磁芯损耗,但会降低直流饱和电流并增加直流电阻。
IC693PCM300MP首先选择耦合电容值,以使平均电荷相对于循环电荷较大(等于I外/开关频率)。然后,计算电荷/电容以找到纹波电压,纹波电压不得超过直流伏特的一小部分;5% 是很好。请注意,陶瓷电容器在焊接后会随着施加的电压和时间而损失大量电容;因此,陶瓷电容额定值要非常保守。(村田制作所提供了绘制这些系数的在线工具。对于采用小型封装的高 C × V 额定值的器件,这种随施加电压而损失的电容尤其如此。输出电容和耦合电容使用相同的电容额定值通常很方便。
IC693PCM300MP
FISHER ROSEMOUNT 12P0083X022 USPP 12P0083X022
FISHER ROSEMOUNT TL123 USPP TL123
FISHER ROSEMOUNT 4101AM3 NSPP 4101AM3
FISHER ROSEMOUNT 41B7287X032 USPP 41B7287X032
FISHER ROSEMOUNT CL6821X1-A6 USPP CL6821X1A6
FISHER ROSEMOUNT CL7015X1-A1 NSFP CL7015X1A1
FISHER ROSEMOUNT CP7202X1 USPP CP7202X1
FISHER ROSEMOUNT 12P0144X032 NSPP 12P0144X032
FISHER ROSEMOUNT 644RNAF6 USPP 644RNAF6
FISHER ROSEMOUNT TL157 USPP TL157
FISHER ROSEMOUNT 01151-0687-0005 USPP 0115106870005
FISHER ROSEMOUNT TL103 USPP TL103
FISHER ROSEMOUNT 1151DP3E12 USPP 1151DP3E12
FISHER ROSEMOUNT 1151GP6E22B1 NSFP 1151GP6E22B1
FISHER ROSEMOUNT 42B0391X032 USPP 42B0391X032
FISHER ROSEMOUNT 1151GP3E12M2B1 USPP 1151GP3E12M2B1
FISHER ROSEMOUNT 44B2955X032 USPP 44B2955X032
FISHER ROSEMOUNT 29B1674X012 NSFP 29B1674X012
FISHER ROSEMOUNT TL131 USPP TL131
FISHER ROSEMOUNT 3D39112G-01 USPP 3D39112G01
FISHER ROSEMOUNT 0068QP11U080L150 NSFP 0068QP11U080L150
FISHER ROSEMOUNT 1151DR2F12B1 USPP 1151DR2F12B1
FISHER ROSEMOUNT 1151DP3E12B2 USPP 1151DP3E12B2
FISHER ROSEMOUNT CL7652X1-A2 USPP CL7652X1A2
FISHER ROSEMOUNT 1151DP3S12M2B3 USPP 1151DP3S12M2B3
FISHER ROSEMOUNT TL132 USPP TL132
FISHER ROSEMOUNT TL172 USPP TL172
FISHER ROSEMOUNT SCL-R-401-M2 USPP SCLR401M2
FISHER ROSEMOUNT 43B5452X042 USPP 43B5452X042
FISHER ROSEMOUNT 667-EZ USPP 667EZ
FISHER ROSEMOUNT 1151DP3E22B3 NSFP 1151DP3E22B3
FISHER ROSEMOUNT 36A7633X022 USPP 36A7633X022
FISHER ROSEMOUNT 32-24588-1-1/2-5-15-CV28 USPP 32245881
FISHER ROSEMOUNT 54-24-588S USPP 5424588S
FISHER ROSEMOUNT 863-1T001 NSPP 8631T001
FISHER ROSEMOUNT 46A3008-L54 NSPP 46A3008L54
FISHER ROSEMOUNT 1151AP8S52B1M3 USPP 1151AP8S52B1M3