[TCML] DRSSTC weird waveform behavior

[Antonio Carlos M. de Queiroz]

On 16:59, Justin B wrote:
> But what the heck is this??
> http://i.imgur.com/nfcC7.jpg
The driver is being turned off after the 7th negative pulse, but the 
current is still oscillating, causing conduction of the diodes in 
parallel with the drive transistors. This rises the output voltage of 
the driver a bit above and below the DC power supplies in the next 4 
semicycles, returning energy to the power supply. After this you see the 
remaining energy in the secondary coil oscillating and generating a 
small oscillating voltage at the driver output. You could let the driver 
operate for a few more cycles, completing a full beat of the primary 
current. The voltage drop over the transistors seems quite high.

Antonio Carlos M. de Queiroz