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Battery Charge Current Indicator - This circuit turns on a LED whenever it detects
at least 25ma of battery charge current. (added 7/06) ….(designed by David A. Johnson) |
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Circuit Techniques for Avoiding Oscillations in Comparator Applications - National
Semiconductor Application Note (app note added 2/06) |
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Comparator Adds Current Limit to V2 Controller - 05/07/98 EDN-Design Ideas:
contains multiple circuits scroll to find this circuit.....(design idea added 05/02) |
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Comparator Detects Failed Telecomm Supplies - 06/22/00 EDN-Design Ideas: / PDF
contains multiple circuits, scroll to find the one of interest / Detects when telecomm
power supplys48V output drops below its nominal value, uses an isolated comparator to
monitor two48V telecomm supplies (.....(design idea added 5/03) |
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Comparator detects position of peaks & valleys in a waveform - 05/24/07 EDN-Design
Ideas: Simple comparator circuit locates peaks and valleys of a waveform in
time.....(design idea added 9/08) |
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Comparator Exhibits Temporary Hysteresis - 10/14/00 EDN-Design Ideas: (design idea
added 5/05) |
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Comparator has Independent Trip Voltages - 07/22/99 EDN-Design Ideas: (design idea
added 11/05) |
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Comparator has Programmable Limits - 07/08/99 EDN-Design Ideas: [Note: File
contains multiple circuits. Scroll to find this one.] The circuit in
Figure 1 combines a dual buffered D/A converter and dual four-input comparator to
configure a comparator circuit.....(design idea added 11/05) |
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Comparator Improves Regulator's Efficiency - 04/28/94 EDN-Design Ideas: The UC384X
family of current-mode PWM regulators requires a current shunt or some other component
to develop a voltage proportional to the output current. This shunt must develop a 1V
signal at full load. For off-line supplies, the 1V requirement is not hard to
meet because of the high voltage on the supply's dc bus. However, if you
want.....(design idea added 5/03) |
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Comparator Provides Stable Hysteresis - 03/18/99 EDN-Design Ideas: Unless a
voltage-comparator circuitis sampling an extremely clean signal, the comparator always
requires some hysteresis. Traditional comparator circuits obtain the required
hysteresis by using positive feedback derived from the ratio of two resistors. The
voltage at the noninverting input is the superposition.....(design idea added 5/03) |
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Comparator uses Signal Dependent Hysteresis - 03/26/98 EDN-Design Ideas: A
project posed the challenge of replacing existing analog potentiometers (used to set
brightness and contrast levels)in video monitors with digitally controlled
potentiometers. The different brands and models of monitors presented widely varying
voltages across the potentiometers.....(design idea added 03/03/03) |
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Comparators Form 3 to 5 Volt or 5 to 3 Volt Translator/Tranceiver - 09/02/96 EDN-Design
Ideas: In many recent systems, you often need to interface 3V signals with higher
voltages within the system. In some cases, it's necessary to interconnect 3 and 5V
open-collector transceivers.Figure 1 shows one example, in which multiple multidrop
communications devices interconnect. In systems where no control lines are available
for interfacing, the.....(design idea added 3/03) |
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Comparing the High Speed Comparators - National Semiconductor Application Note
(app note added 2/06) |
