Organize and Share your Electronics the way you want. Sign-Up for a free account now. It takes only 30 seconds!

App note: Parallel configuration of H-bridges featuring the MC33932 and MC34932 ICs

App note: Parallel configuration of H-bridges featuring the MC33932 and MC34932 ICs

Old application note from ON Semiconductors on getting increased power capability by paralleling H-bridges and overcoming current limit imbalance between the two drivers by properly designing the board layout. Link here (PDF)

Two or more H-bridges can be operated in parallel to increase the current handling capacity of the circuit. In this application note, paralleling of H-bridges has been exemplified using a dual H-bridge model MC33932/MC34932. However, paralleling of H-bridges is not an easy task, as any offset or mismatch between the two MOSFETs can cause one of them to hit the over current/temperature limit before the other, forcing very high-current through one of the H-bridges in parallel configuration, which may initiate device shutdown.

The objective of this application note is to present a method to obtain twice the current from a dual H-bridge by paralleling the dual H-bridges located on the same die. This document also presents the various methods to calculate the junction temperature, to ensure the device operates within the thermal limits specified in the data sheet.

Read more Here







 

More Articles to Read

DECA MAX®10 FPGA Evaluation Kit
DECA MAX®10 FPGA Evaluation Kit
An Arduino laser pinball machine
An Arduino laser pinball machine
CTCSS fingerprinting: A method for transmitter identification
CTCSS fingerprinting: A method for transmitter identification
TI DLP® Pico™ Technology for Aftermarket Head-up Displays
TI DLP® Pico™ Technology for Aftermarket Head-up Displays
Brute force computation for cheap log digital potentiometer
Brute force computation for cheap log digital potentiometer
Smart "Homer"
Smart "Homer"
A DIY Segway-style vehicle
A DIY Segway-style vehicle
Superbeta transistors inside: Die photos and analysis of the LM108 op amp
Superbeta transistors inside: Die photos and analysis of the LM108 op amp
Peeqo is a desktop bot that communicates through GIFs
Peeqo is a desktop bot that communicates through GIFs
Using a Programmable Input Multiplier to Minimize Integer Boundary Spurs
Using a Programmable Input Multiplier to Minimize Integer Boundary Spurs

Top


Shares