IRMCS3041

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2 Hardware Description

A top view of IRMCS3041 is shown in Figure 2.

Power Supply

EMI Filter

DC Bus Capacitor

Isolation Boundary

Magnetic Isolator

IRMCF341

Digital Control IC

JTAG Connector

RS232 Connector

EEPROM

IRAM

Diode Bridge

Rectifier

Reset Switch

Crystal

Analog Channels

NTC

Earth Ground

Connected to

Heat Sink

Power

Digital I/O

Isolation Boundary

Figure 2.

Top View of IRMCS3041

2.1 PCB

The printed circuit board has two electrical layers and its size is 3.5 x 4.5 inches.

2.2 Isolation Boundary

Note that there are two different grounds on this system. The RS232 connector and JTAG connector are isolated by

magnetic isolators so that the user can connect their debugger and computer without isolating the computer. However,

the user should keep in mind that most parts of the hardware have negative DC bus ground and it is necessary to

isolate the scope when waveforms are measured.