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Window Comparator Circuits
Last Updated on: Monday, October 03, 2011 06:08 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Absolute-value comparator touts accuracy, size - 7-Mar-02 Issue of
EDN A typical window comparator uses two comparators and a single op
amp to determine whether a voltage is inside or outside a boundary
region.... [Design Idea by Teno Cipri, Engineering Expressions Consulting,
Sunnyvale, CA] |
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Design low-duty-cycle timer circuits - 22-Aug-02 Issue of EDN
Designing astable circuits using the industry-standard 555 timer is a
straightforward process when duty cycles are 50% or greater. However, you
must overcome the many pitfalls of low-duty-cycle circuits to arrive at a
desired result. Using only ideal components eases the design, but the
components themselves are hard to obtain.... [Design Idea by Phil Rogers,
Texas Instruments Inc, Rockwall, TX] |
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Electronic fuse emulates fast- or slow-blow fuses - 11/09/00 EDN-Design
Ideas....The electronic-fuse circuit in Figure 1 combines the properties of
a current transducer and a solid-state relay to disconnect low power at
preset levels.Using this circuit lets….PDF contains multiple circuits,
scroll to find the one of interest.... [Design Idea by John A Hasse,
Colorado State University, Fort Collins, CO] |
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Expanded-scale indicator revisited - 8-Aug-02 Issue of EDN The
visualization aid that a previous Design Idea describes allows only the expansion of
the upper end of the scale (Reference 1]. But what can you do if, according to your
project requirements, you need to expand the middle region of the scale? Figure 1a
illustrates the challenge. A voltmeter comprises a 100-µA dc meter and a series
resistor.... [Design Idea by Abel Raynus, Armatron International Inc, Melrose, MA] |
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Missing codes Tester checks 16 Bit ADC in 7 sec - 06/10/99 EDN-Design
Ideas....As the resolution of ADCs increases from 12 to 16 bits and higher, the
difficulty in testing the "nomissing-codes "specification grows proportionately. To
fully guarantee no missing codes for a 16-bit ADC requires testing all 2 16-1 possible
output.... EDN is migrating links. This link is not verified. Google the "title"
+ EDN for new link. |
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Two Buttons Provide Safe Start - 07/06/00 EDN-Design Ideas....The circuit in
Figure 1 provides a safety interlock that checks the actuation of two pushbuttons
before enabling a relay. When you push both buttons, the circuit actuates the relay.
At that point, you can release one of the switches without the relay'.... [Design Idea
by Vincent Himpe, Alcatel Microelectronics, Desselgem, BelgiumVincent Himpe, Alcatel
Microelectronics, Desselgem, Belgium] |
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Comparator Circuits |
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