Board 3s SKYPER

9

2010-04-21 – Rev01

© by SEMIKRON

Setting Soft Turn-Off

Designation

Pattern Name

Setting

R160, R161

(parallel connected)

MiniMELF

Factory setting: not equipped

TOP

R260, R261

(parallel connected)

MiniMELF

Factory setting: not equipped

BOT

Temperature Signal

The temperature sensor inside the SEMiX

temperature sensor, see Modules Explanations SEMiX

Over Temperature Protection Circuit (OTP)

The external error input SEC_TOP_ERR_IN on the secondary side (high potential) of the driver core is used for an over

temperature protection circuit to place the gate driver into halt mode.

Dimensioning OTP

1. Define an over temperature trip level according to the application.

2. Calculate the nominal ohmic resistance value of the temperature sensor at the defined trip

level (see "Modules – Explanations - SEMiX

3. The trip level on the adapter board is set with R172 by using the calculated resistance value.

Factory setting R172: not equipped

If no resistor is used, a failure signal is generated.

Please note:

If the contacting points T1 and T2 are used for adaptor of the temperature sensor, the Over Temperature Protection Ciruit

must be disabled by taking out the resistors R175, R178 and R179.

Safety Warnings:

The contacting points T1 and T2 are not electrical isolated. Due to high voltage that may be present at the

contacting points T1 and T2, some care must be taken in order to avoid accident. There is no cover or potential

isolation that protect the high voltage sections / wires from accidental human contact.