AC to DC

DC to AC

DC to DC

AC to AC

Inverter with DC input

DC equivalent of an AC transformer

Diode rectifier

None

Time ratio controller

AC to DC converter

DC transformer

High speed semiconductor switch

$\frac{T_{on}}{T_{off}}$

$\frac{T_{on}}{T}$

$\frac{T}{T_{on}}$

$T_{off}\times T_{on}$

Duty cycle

Firing angle

Reactor position

All

0<α<1

0>α>-1

0<=α<=1

1<α<100

$\frac{T_{on}}{\alpha }$

$\frac{T_{off}}{\alpha }$

$\frac{\alpha }{T_{off}}$

$\frac{\alpha }{T_{on}}$

$V_o=\frac{V_s}{\alpha }$

$V_o=V_s\times \alpha$

$V_o=\frac{V_s^2}{\alpha }$

$V_o=\frac{2V_s}{\alpha \mathrm{\pi }}$

First-quadrant chopper

Second-quadrant chopper

Third-quadrant chopper

Fourth-quadrant chopper

Type-A and type-B choppers in series

Type-A and type-B choppers in parallel

Two type-A choppers in series

Two type-A choppers in parallel