78M6612 Split-Phase Evaluation Board User Manual
UM_6612_044
2.1 Basic Connection Setup
Figure 1 and 2 show the basic connections of the 78M6612 Split-Phase Evaluation Board for use with
external equipment. The 78M6612 Split-Phase Evaluation Board is powered either by an on-board ACDC
switcher or from an external +12VDC power supply. A USB cable provides the communications link
between the host PC and the 78M6612 Split-Phase Evaluation Board. The high voltage AC source and
load wires connect to spades mounted on the bottom side of the board.
J2
ACDC
Switcher
External
+12VDC
USB
Connector
.
Figure 2: Top Side 78M6612 Split-Phase Evaluation Board Connections
Install jumper J2 when using the on-board ACDC switcher. The switcher draws power from one of the AC
inlet phase wires. Remove jumper J2 when attaching an external +12VDC power supply to disconnect the
switcher from the AC inlet. The board draws less then 100ma from the external +12VDC supply. Use an
external +12VDC power supply which is fully isolated.
8
Rev. 1.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
