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A 3-Phase Power Meter Based on the ADE7752 - AN-641 Analog Devices Application
Notes (app note added 6/06) |
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A 4 to 20 mA loop needs no external power source - 09/13/01 EDN-Design
Ideas: The simple circuit in Figure 1 uses a low-current-drain
MAX407).....(design idea added 11/05) |
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A Comparison of Leading Switch/Measure Solutions - Agilent Application Note
(added 6/06) |
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A Guide to the Design of Current Feedback Control / AN-4109 - Fairchild
Application Notes / (app note added 6/06) |
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A Low Cost Tamper-Resistant Energy Meter Based on the ADE7761 with Missing Neutral
Function - AN-687 Analog Devices Application Notes (app note added 6/06) |
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A Low Cost Watt-Hour Energy Meter Based on the AD7755 Chinese Version -5/2000 -
AN-559 Analog Devices Application Notes (app note added 6/06) |
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A Low Cost Watt-Hour Energy Meter Based on the ADE7755 - AN-559 Analog Devices
Application Notes (app note added 6/06) |
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A Low Cost Watt-Hour Energy Meter Based on the ADE7757 - AN-679 Analog Devices
Application Notes (app note added 6/06) |
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A Precision Wideband Current Probe for LCD Backlight Measurement - DN101
Design Notes (Linear Technology) (app note added 1/06) |
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A simple Remote control Tester - (electronic circuit added 10/05) |
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A Tamper-Resistant Watt-Hour Energy Meter - AN-563 Analog Devices Application
Notes (app note added 6/06) Based on ADE7751 and Two Current Sensors |
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A Tamper-Resistant Watt-Hour Energy Meter Based on the AD7751 - AN-574 Analog
Devices Application Notes (app note added 6/06) With a Current Transformer
and a Low Resistant Shunt |
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AC continuity tester finds single ended faults in cables - 02/21/08 EDN-Design
Ideas: A continuity tester injects an AC signal into the conductors of a cable
to find circuit faults. |
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AC Current Monitor - The hobby circuit below shows how a small current transformer
from Magnetek can be used to monitor AC current to a load. The AC voltage
developed at the secondary of the transformer can be scaled so it can be read by any
digital multimeter. The transformer is rated at 30 amps. ….(designed by David A.
Johnson) |
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AC Line Current Detector - This circuit will detect AC line currents of about 250
mA or more without making any electrical connections to the line. Current is detected
by passing one of the AC lines through an inductive pickup (L1) made with a 1 inch
diameter U-bolt wound with 800 turns of #30, #35 magnet wire. The pickup could be made
from other iron type rings or...(electronic schematic / circuit added 4/02) |
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AC power monitor uses remote sensing - 04/26/01 EDN-Design Ideas: (design
idea added 6/06) |
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AC Voltmeters and ammeters - Electronic circuit design (added 02/05) |
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Acceleration meter for cars - This circuit it is count the acceleration from
-1000mg up to +1000mg. Can be used in lot of applications like cars, elevators, ramps
and more.….(electronic schematic added 03/09) |
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Acceleration Monitor using ADXL202 and AVR - (circuit / schematic design added
6/06) |
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Acceptable Voltage Indictor - I have used this circuit many times in custom test
fixtures where a simple go-no go indication was needed. The circuit can also be
used to adjust a particular voltage be within specific high or low limits. The
three LEDs will indicate if the voltage is high, low or OK. When connected to
other converters, such as a frequency to voltage converter, a current to voltage
converter or a power to voltage meter, it could provide a quick indication of a proper
level. ….(designed by David A. Johnson) |
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Accurate Digital LC Meter - Based on PIC16F84A microcontroller, 16x1 LCD and LM311
IC (circuit added 8/06) |
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Accurate Digital LC Meter - Most accurate and simplest LC inductance /
capacitance Meter that you will find. It allows you to measure incredibly small
inductances starting from 10nH to 1000nH, 1uH to 1000uH, 1mH to 100mH and capacitance
from 0.1pF up to 900nF. ….(design added 11/08) |