PLC LV Evaluation Board
3.3.1
Power Supply Circuit
This section takes the power from the powerline and generates necessary low DC voltage for the
operation of the PLC transceiver and other components on the chip.
The key components in this section are listed in the following table.
Table 3-1. Power Supply
Component
Description
This is the connector to hook up the power adapter.
5 V regulator.
J4
U7
This is a 2-pin header to connect other boards in daisy chain and power them. The cable to
do this is provided with the kit. Connect a maximum of five boards in one daisy chain.
J1
DS1
L4
This is a blue LED that glows when the board is powered on.
This inductor blocks any high frequency power supply noise from disrupting the line. It also
minimizes any effect of loading from the power supply on the PLC signal.
The key components are circled in the following schematic.
Figure 3-2. Power Supply Schematic
CY3273 Cypress Low Voltage Powerline Communication Evaluation Kit Guide, Doc. # 001-55382 Rev. *C
19
[+] Feedback
CYPRESS [ CYPRESS ]
