Inverted Power Module is a high current electrical power conversion system for the charging of radar Pulse Forming Networks [PFN], developed indigenously for use with high power long range radar systems type TPS-43 and TPS-70.

The unit is used in the transmitter section of TPS-43 and TPS-70 radar systems. One transmitter uses four Inverted Power Module units at one time. Special design changes have been incorporated to meet extreme weather conditions of Pakistan and the units have consequently provided better operational response.

 

 

The unit comprises of the following main assemblies:

• SCR controlled Power Conversion Unit
• SCRs driving and monitoring circuit
• Power line noise rejection unit
• Filtration unit
• Water flow control assembly
• External aluminum chassis

Hard aluminum alloy has been used to fabricate the chassis due to heavy weight of internal assemblies. The chassis has been surface treated chemically and covered with a fine layer of plastic paint  to avoid any damage to the surface under harsh military environment.

Technical specifications  

Part number	359D533G02-PK
Radar systems	TPS-43 and TPS-70 (provides 300Km range)
Electrical specifications
Input voltage	+280VDC
Output power	6KW
Frequency	10KHz
Mechanical specifications
Size	20 x 7 x 21 inches [LxWxH]
Weight	32Kg
Cooling mechanism	Water cooled

Environmental characteristics

Operating conditions
Temperature	0°C to +70°C
Humidity	90%
Storage conditions
Temperature	-10°C to +95°C
Humidity	95%