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A8-2 ARC VOLTAGE SENSING
The secondary output voltage is detected on X3-6 and X3-8 and sent to the voltage limitation cir-
cuit and short-circuit evaluation circuit 3.
NOTE! The internal voltage signal is only intended for internal use to control the unit. This signal
must not be tapped on the control A8 for other purposes, e.g. for additional displays.
A8-3 SECONDARY MOSFET DRIVER
The control signals for the secondary inverter are generated on A8 and transferred to the driver
stage A03-3 potential-isolated by an opto-coupler (14). This is where the driver signals are gen-
erated for the power MOSFETs on A9, A10, A13, A14. In the event of a defect in the power MOS-
FETs, the control signals should also be tested.
Cf. TESTING WITH TESTER IT01.
a8-2.pcx
a8-3.pcx
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