B
booth
- Jan 1, 1970
- 0
Dear All,
I'm designing a medical device which generates shockwaves. I'm facing
serious EMI problems. The device generates the shockwaves by
discharging a high voltage capacitor through a Spark Gap, a triggering
transformer is used. The triggering transformer is triggered using a
circuit. The trigger circuit is fully isolated using an isolated supply
and optocouplers.
A seperate microcontroller controls the triggering process by sending
signals to the opto isolated triggering circuit.
Despite all the isolation measures taken, whenever a HV discharge
occurs the microcontroller circuit resets. I look at the supply voltage
of the uC board and see large spikes.
What I am doing wrong? Is it the layout in the HV section?
Please Help...
I'm designing a medical device which generates shockwaves. I'm facing
serious EMI problems. The device generates the shockwaves by
discharging a high voltage capacitor through a Spark Gap, a triggering
transformer is used. The triggering transformer is triggered using a
circuit. The trigger circuit is fully isolated using an isolated supply
and optocouplers.
A seperate microcontroller controls the triggering process by sending
signals to the opto isolated triggering circuit.
Despite all the isolation measures taken, whenever a HV discharge
occurs the microcontroller circuit resets. I look at the supply voltage
of the uC board and see large spikes.
What I am doing wrong? Is it the layout in the HV section?
Please Help...