Tandy 1000 SL Technical Reference Manual page 212

Waveforms
Vin
Y
Power Converter Circuit
Collector Voltage Waveform
Collector Current Waveform
The i n p u t and o u t p u t v o l t a g e are r e p r e s e n t e d by t h e
f o l l o w i n g e q u a t i o n s :
Vo =
n
x Vf
V o :
Output v o l t a g e
n
:
Turn r a t i o of t h e t r a n s f o r m e r
T 1
vf
:
Collector Voltage a t t u r n - o f f t i m e
Vin x
Ton = vf
x Toff
V i n : Input v o l t a g e
Ton
:
Turn-on t i m e of t r a n s i s t o r
T o f f :
Turn-off t i m e of t r a n s i s t o r