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As mentioned in section 2.7 there is electromagnetic noise present when the tesla coil is used and a robust channel is needed for signal X2 because this signal is transmitted from the pulse shaper to the tesla coil driver, wich as mentioned in section 2.1 are physically located in different chassis some distance apart. For this plastic optical fibre is chosen. To further increase the robustness the signal X2 is modulated. The robustness and possible noise introduced in this channel is not discussed further as it can be treated as an isolated problem and is assumed well understood and documented in the field of electronics. A diagram of the optical channel is shown in fig. 2.13. Where CW is the carrier wave used to modulate the signal X2, PWM is the modulated signal X2. The blocks tx and rx are the optical transmitter and reciever.

Virkemåte

TBD

Spec

Optisk Mottaker
-tar inn optisk signal, sender ut Trigger og Carrier detect
-Optisk tranciever på pcb med minimalt med komponenter
-Resten av kretsen på et bakplanskort

Tilkobling:
Inngang:
-J51203 og U51201G 5V inn (JST 2pin)
-U51200 Optical Reciever
Utgang:
-J51200 og J51201 for trigger(JST 2pin)
-J51202 for Carrier Detect(JST 2pin)
*Aktiverer også LED D51201 som vister carrier detect. (Rød)

Virkemåte:
Skiller Triggersignal og carrier-signal, videresender (med kort pause på carrier).

Todo:
-Replace U51201A og U51201B med op amp(?)

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