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H-Bridge Circuits,
Page 4
H-Bridge: # - C
D - F
H
I - Z
Last Updated on:
Friday, March 23, 2012 04:10 PM
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| Circuits
Designed by Dave Johnson, P.E. : |
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Alternating CW & CCW Motor Driver
A while back a company needed a motor controller for a custom door latching system.
The system used a small brush motor with a speed reduction gear to both latch and
unlatch the door. When pulsed for about 250ms in the clockwise direction, the
motor would unlatch the door. When spun in the opposite direction for 250ms,
it would latch the door. The circuit below performs this function. A single
low power pushbutton is used to alternate between the two directions. The
circuit is powered by 4.5v using a battery made from three alkaline AA cells.
The motor draws about 250ma. The battery should provide many years of service.
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- Low
Voltage H-bridge
TTL type Q and inverted Q inputs control a classic H-bridge circuit, rated at 50
volts and about 10 amps. The circuit can control power and direction of a DC
motor. (added 7/06)
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Low Voltage H-bridge - TTL type Q and inverted Q inputs control
a classic H-bridge circuit, rated at 50 volts and about 10 amps. The
circuit can control power and direction of a DC motor..... [Designed by
David A. Johnson] |
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Microcontroller drives H bridge to
power a permanent-magnet DC-mmotor - 15-Mar-07 Issue of EDN
Improved H-bridge requires only two driver signals..... [Design Idea by
Luca Bruno, ITIS Hensemberger Monza, Lissone, Italy; Edited by Brad
Thompson and Charles H Small] |
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MOSFET H Bridge - (schematic / circuit added 6/07) |
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Motor-control scheme yields four positions with two outputs -
7-Feb-02 Issue of EDN Figure 1 showshow to position a mechanical
device into four discrete positions but with only two free outputs and one
free input from the control system. The position depends on a set of cams
and four corresponding limit switches. The 24V-dc motor comes with a worm
gear. Darlington transistors Q3 to Q6 and resistors R7 to R12 form an
H-bridge that drives the dc motor, M..... [Design Idea by Jean-Bernard
Guiot, DCS AG, Allschwil, Switzerland] |
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Reversing H-bridge - This H-bridge variant was one of the first in which the
reversing circuitry is built into the driver, rather than (as is more-commonly done)
into the control circuitry upstream of the driver. This is a handy circuit,
though, for 2-motor walkers -as all that is required to reverse one is to reverse the
phasing of one of the motors. (added 7/06) |
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Self-oscillating H bridge lights white LED from one cell - 26-Nov-09 Issue
of EDN Circuit operates on batteries as low as 0.6V..... [Design Idea by Luca
Bruno, ITIS Hensemberger Monza, Lissone, Italy] |
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Sensor Electronic Tracker with H-Bridge Drive - I decided to make a
commercial surface mount PC board using the LED2 sensor concept. It is quite sensitive
and can track to a few degrees of accuracy in bright sunlight. If a blocking shadow
is used the accuracy is better then 1/4 degree, that's about as good as you can get
with an active feedback sensor. The board is a tiny .7"x1.4"..... [The site is owned
by Duane C. Johnson] |
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Servo Pulse to Dual H-Bridge - interface performs vital control functions
needed for propulsion and steering of a “fighting robot”. (added 7/06)
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Servo Pulse to PWM - converter connects an H-Bridge to radio control
receivers or robotic circuits. (added 7/06) |
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Six-transistor H-bridge - This is the six transistor "Tilden style"
H-bridge; while not as old as the original "basic H-bridge," this goes "way back," and
is the basis for many BEAM driver circuits (added 7/06) |
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Zoelen Bridge Z-Bridge - A Cheaper H-Bridge Design the Zoelen Bridge
(Z-Bridge) (added 7/06) |
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H-Bridge:
# - C
D - F H
I - Z |
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