Torque
Circuits
Last Updated on:
Monday, April 16, 2012 08:03 AM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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A worked Stepping Motor Example - Perhaps some of the most
commonly available stepping motors, for the experimenter, are the head
positioning motors from old diskette drives. These can be found at
electronics swap meets, in computer surplus outlets, and even in trash
dumpsters. In addition to a stepper, a typical full-height 5.25 inch disk
drive includes a 12 volt DC motor with tachometer....(Circuit design added
09/08) |
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Accurately measure resistance with less than perfect components -
11-Nov-04 Issue of EDN For transducers, such as strain gauges or
thermistors, you must accurately and inexpensively measure resistance using
circuitry built with imperfect components and in which gain and offset
errors can significantly limit the accuracy of ohmic measurements. The right
circuit topology makes it possible to eliminate most error terms while
measuring ohms, leaving the accuracy to be determined by jus.... [Design
Idea by Dave Van Ess, Cypress Semiconductor] |
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AN-828: Increasing the High Speed Torque of Bipolar Stepper Motors -
National Semiconductor Application Note....[App Note] |
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Circuit routes audio signals between equipment - 7-Jan-10 Issue of EDN
Analog devices let you switch audio channels with no signal loss.... [Design Idea by
Roger Khourey, Los Angeles, CA] |
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High Precision Rail-to-Rail Output Operational Amplifier - National
Semiconductor Application Note LMV2001 April 2004....[App Note] |
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Make a simple ramp generator for stepper-motors - 4-Apr-02 Issue of EDN
Stepper motors are synchronous motors that step at the pulse rate of the driving
signal. For the motor to move quickly, the stepping rate must be fast. However,
because of motor and load inertia, the motor often cannot go from 0 rpm to the desired
number of revolutions per minute in one step. Therefore, most stepper motors receive
their drive from a pulse chain that starts out slowly and.... [Design Idea by Richard
Brien, GSI Lumonics, Wilmington, MA] |
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Soft-start controller is gentle on loads - 22-Nov-01 Issue of EDN The
control circuit in Figure 1 senses a given load and automatically soft-starts the load
by synchronously adjusting the power to that load. You can also manually adjust the
power delivered to the load by controlling the phase angle of the line voltage across
the load. The phase-angle adjustment for every ac half cycle covers 0 to 180°....
[Design Idea by Douglas Sudjian, Resonext Communications Inc, San Jose, CA] |
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Torque
Circuits
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