Inverter/Yoonseo Design/H Bridge

What is an H Bridge

"An H bridge is an electronic circuit that enables a voltage to be applied across a load in either direction." See the H Bridge wikipedia page.

Important Design Considerations

General Concerns

Avoid ground loop by having floating grounds (only on certain grounds -- need to clarify).

Signal wires should be far from power wires.

What Switches to Use

Likely use MOSFET, NPN (off until switched). See MOSFET.

Considerations:

Operating Rds = Resistance from Drain to Source while Gate activated. Needs to be low for efficiency.

Switching Rds = Resistance from Drain to Source needs to be high during the switch (to avoid shoot through?).

See: MOSFETs and MOSFET drivers

What Length of Wire

Important because high frequency of signal creates inductance via EMF. Make sure all wires leading to gates are the same length, and make the wires as short as possible to minimize the inductance.

What Resistors

Resistor choice determined to choose the proper current required by the MOSFET gate. Determined by Vin, which varies.

Position of Wires

Keep signal wires from power wires.