Power Supplies
Figure 3. JP1 in Ext Position
The second option is to supply the high side of the AMC1305 with the filtered signal coming from the
isolated side of the onboard transformer T1. Note that the filtered signal on the isolated side of T1 is
generated from the power supplied to the controller side of the AMC1305 device by using the SN6501
transformer driver located at U3. To take advantage of this isolated, onboard supply, the user must set
jumper JP1 to the position labeled
Iso
, as shown in
.
Figure 4. JP1 in Iso Position
4
AMC1305xxEVM User's Guide
SBAU237 – September 2014
Copyright © 2014, Texas Instruments Incorporated
