From AC-DC rectifiers and PFC front-ends to DC-DC choppers, isolated converters, inverters and cycloconverters — explore 43 topologies with real circuit diagrams and a side-by-side comparison tool.
Devices that convert alternating current (AC) into direct current (DC).
The simplest rectifier circuit, using a single diode.
A bridge rectifier that converts both halves of the AC waveform.
Full-wave rectifier using a center-tapped transformer and two diodes.
Uses a thyristor (SCR) to control the output voltage.
Uses SCRs in a bridge for full control of the DC output.
Half-controlled bridge using two SCRs and two diodes.
Three-phase half-controlled bridge for medium-power DC.
Two full-controlled bridges for four-quadrant DC operation.
Back-to-back three-phase bridges for reversible drives.
Three-phase, three-level unity-power-factor boost rectifier.
Bidirectional PWM rectifier with sinusoidal input current.
Boost-based power-factor-correction front-end for SMPS.
PFC without an input diode bridge for lower conduction loss.
High-efficiency GaN/SiC totem-pole PFC for high density.
Devices that convert DC from one voltage level to another.
Step-down DC-DC converter for reducing voltage.
Step-up DC-DC converter for increasing voltage.
Steps voltage up or down with inverted output.
Capacitive energy-transfer converter with low ripple.
Single-ended primary inductor converter; non-inverting.
Non-inverting buck-boost with good EMI performance.
Parallel buck phases with ripple cancellation for high current.
Buck variant with a flying capacitor and smaller inductor.
Single-quadrant chopper for +V, +I motoring operation.
Second-quadrant chopper for regenerative braking.
Two-quadrant chopper combining motoring and regeneration.
Two-quadrant chopper with reversible output voltage.
Four-quadrant chopper for full ±V, ±I drive control.
Isolated single-switch converter for low-power supplies.
Isolated converter with a reset winding for mid power.
Rugged forward variant clamping the switches to the rail.
Isolated two-switch bridge for mid/high-power supplies.
Isolated four-switch bridge for high-power conversion.
Center-tapped primary converter for low-V, high-I input.
Converts DC power to AC power at a desired frequency.
Basic inverter with two switches; produces a square wave.
Uses four switches for higher output voltage and power.
Three-phase inverter; each switch conducts for 120°.
Three-phase inverter; each switch conducts for 180°.
Direct AC-AC frequency converter without a DC link.
Changes the frequency of single-phase AC (step-down).
Converts three-phase AC from one frequency to another.
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