Design, development and qualification of the third generation of the Thales Alenia Space ETCA’s Electronic Power Conditioner (EPC) dedicated to supply and control the Travelling Wave Tube (TWT) that constitute the Travelling Wave Tube Amplifier (TWTA) for Repeaters involved in large quantity in the Telecommunication Payloads.
This new generation has to answer to the evolution of the market in terms of new features, high performances and improvement in competitiveness.
It also must be designed in a way that it will be compatible with the large range of TWT and Payload interfaces proposed on the telecom market.
More and more TWTA are involved in the repeater chain of the telecom payloads thanks to their very good performances at high power regarding to the standard Steady State Products.
The TWT products have followed the constant growth of the requested power and channel bandwidth especially for multimedia applications.
A major drawback of this product is its need to be supplied with very high voltage in addition to specific controls and sequencing according to its operating modes.
The EPC answers this challenge by providing power from the Payload Power Bus (PPB) to the TWT electrodes up to 7 000 volts with level of protection and safety required for space vacuum operation over 15 years.
Consequently to these specific features the TWTA significantly contributes in the payload cost and the competitiveness of this product is continuously addressed.
The EPC 3G MP product developed in the frame of this contract also offers the opportunity of significant improvement of the payload power management through the new feature in Power Flexibility. Managed on ground for the optimisation of the Power budget or in flight for rearrangement according to the actual power demand, this new feature is a key element of the future payloads competitiveness.
TWT + CAmp (optional Channel Amplifier) + EPC
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