Combination Wave Generator SPICE simulation.

Coupling and Decoupling networks.

Each coupling/decoupling network (CDN) consists of a decoupling network and a coupling element as shown below

For line-to-line coupling, the surge shall be coupled by an 18uF capacitor –Differential Mode:

GPM-SurgeGenerator_page7_image1

For line-to-ground coupling, the surge shall be coupled by an 9uF capacitor and a 10 ohm resistor –Common Mode:

GPM-SurgeGenerator_page7_image2

The EUT device is The Equipment Under Test.

Examples of three phase line-to-earth and line-to-line CDNs

GPM-SurgeGenerator_page8_image1

Surge Generator Validation.

Sahara3 6W board was used to validate the surge generator by measuring the voltage on C229 and comparing with simulation results at 1KV surge and 3KV surge in standby mode, Standby power about 1W

GPM-SurgeGenerator_page9_image1

below a 1KV Surge on Sahara3 6W board, 90 degree Voltage between the MOV varistor.



GPM-SurgeGenerator_page10_image3


SC1_GPM-SurgeGenerator_page10_image2


3KV Surge on Sahara3 6W board, 90 degree. Voltage between the MOV varistor:



GPM-SurgeGenerator_page11_image3


SC2_GPM-SurgeGenerator_page11_image1


1KV Surge on Sahara3 6W board, 90 degree. Voltage between C229:



GPM-SurgeGenerator_page12_image2


SC3_GPM-SurgeGenerator_page12_image3

3KV Surge on Sahara3 6W board, 90 degree. Voltage between C229:



GPM-SurgeGenerator_page13_image3


SC4_GPM-SurgeGenerator_page13_image2


Thanks for this article to ssleandro.

Posted in OrCAD PSpice and tagged , , , .