ETAS ES930.1 - Fig; Fig. 10-1 Half-Bridge Channel Group (Power Stage Group)

ETAS Half-bridges ("PS" Connection)
ES930.1 - User Guide 59
10 Half-bridges ("PS" Connection)
The ES930.1 provides six MOSFET half-bridge switches with current measure-
ment at the "PS" connection as power stages.
10.1 Half-bridges (Power Stages) and Half-bridge Channel
Groups (Power Stage Groups)
The six Half-bridges (power stages) "PS 1" to "PS 6" of the ES930.1 are com-
bined into three identical channel groups (power stage groups):
• Channel group 1: Half-bridges "PS 1" and "PS 2"
• Channel group 2: Half-bridges "PS 3" and "PS 4"
• Channel group 3: Half-bridges "PS 5" and "PS 6"
10.2 Assemblies of a Half-bridge Channel Group
10.2.1 Overview
Fig. 10-1 Half-bridge Channel Group (Power Stage Group)
The channel groups (power stage groups) of the Half-bridges "PS 1" to "PS 6" of
ES930.1 feature an identical design. Each of the half-bridge channel groups PS
n / PS n+1 consists of the following assemblies (see block diagram in
Fig. 10-1
on page 59):
• Assigned Half-bridge (power stage)
– Half-bridge switch n
NOTE
Some assemblies and control signals are used jointly (in pairs) by the Half-
bridges of a channel group.
Output PS2
Control PS2
Power Stage 1
Ext. Supply
7 V … 32 V
Enable PS1/2
Output Unit
Power Stage 2
Digital
Output
Ext. Supply
GND
Control PS1
Output PS1
Current
Sense PS1
Measure-
ment Unit
Diagnosis
Unit
Errorstate
PS1/2
Current Input PS1