Uploaded August 2013 | Updated September 2026, 2 weeks ago
Tishitu explains
The H-Bridge is designed to drive a motor clockwise and anticlockwise.
To reverse a motor, the supply must be reversed and this is what the H-Bridge does.
An H-Bridge can be made with SWITCHES, RELAYS, TRANSISTORS or MOSFETS.
Note: Some circuits are just demonstration circuits and need "damper diodes" (protection diodes) to reduce spikes.
THE H-BRIDGE
The circuits we will discuss are called a transistor H-BRIDGE. The active sections of the circuit create the letter "H" to produce the term "H-Bridge."
There are a number of different H-Bridge designs and the actual circuit will depend on the number of transistors, the type of layout, the number of control lines, the voltage of the bridge, and a number of other factors.
That's why we have a number of different designs to cover these variations.
This design uses 4 transistors. Both inputs must NEVER be HIGH (this will create a short-circuit and damage the transistors). However this circuit is a good design. The voltage on the H-Bridge can be any voltage and the control voltage just needs to be higher than 1v. The circuit provides OFF feature when both inputs are LOW but does not provide BRAKE feature.
An H bridge is an electronic circuit that enables a voltage to be applied across a load in either direction. These circuits are often used in robotics and other applications to allow DC motors to run forwards and backwards.[1]
Most DC-to-AC converters (power inverters), most AC/AC converters, the DC-to-DC push--pull converter, most motor controllers, and many other kinds of power electronics use H bridges. In particular, a bipolar stepper motor is almost invariably driven by a motor controller containing two H bridges.
TISHITU
ISO: 9001-2008
RESEARCH AND CONSULTANCY CELL OF INDUSTRIAL APPLICATION
A Joint Accreditation System of Australia and New Zealand
Copyright © All Rights Reserved tishitu.org Reg No.08122629691/SSI
Accreditation No. M3111204IN
-~-~~-~~~-~~-~-
Please watch: "Lifi Communication by Arduino UNO Download Project"
youtube.com/watch?v=c4gC8dbaiZg
-~-~~-~~~-~~-~-
Tishitu explains
The H-Bridge is designed to drive a motor clockwise and anticlockwise.
To reverse a motor, the supply must be reversed and this is what the H-Bridge does.
An H-Bridge can be made with SWITCHES, RELAYS, TRANSISTORS or MOSFETS.
Note: Some circuits are just demonstration circuits and need "damper diodes" (protection diodes) to reduce spikes.
THE H-BRIDGE
The circuits we will discuss are called a transistor H-BRIDGE. The active sections of the circuit create the letter "H" to produce the term "H-Bridge."
There are a number of different H-Bridge designs and the actual circuit will depend on the number of transistors, the type of layout, the number of control lines, the voltage of the bridge, and a number of other factors.
That's why we have a number of different designs to cover these variations.
This design uses 4 transistors. Both inputs must NEVER be HIGH (this will create a short-circuit and damage the transistors). However this circuit is a good design. The voltage on the H-Bridge can be any voltage and the control voltage just needs to be higher than 1v. The circuit provides OFF feature when both inputs are LOW but does not provide BRAKE feature.
An H bridge is an electronic circuit that enables a voltage to be applied across a load in either direction. These circuits are often used in robotics and other applications to allow DC motors to run forwards and backwards.[1]
Most DC-to-AC converters (power inverters), most AC/AC converters, the DC-to-DC push--pull converter, most motor controllers, and many other kinds of power electronics use H bridges. In particular, a bipolar stepper motor is almost invariably driven by a motor controller containing two H bridges.
TISHITU
ISO: 9001-2008
RESEARCH AND CONSULTANCY CELL OF INDUSTRIAL APPLICATION
A Joint Accreditation System of Australia and New Zealand
Copyright © All Rights Reserved tishitu.org Reg No.08122629691/SSI
Accreditation No. M3111204IN
-~-~~-~~~-~~-~-
Please watch: "Lifi Communication by Arduino UNO Download Project"
youtube.com/watch?v=c4gC8dbaiZg
-~-~~-~~~-~~-~-
