meter circuits
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No description available.
Simple Digital Logic Probe Circuit
The design of the digital logic probe centers around a pair of complementary bipolar transistors, which, in this application, are used as electronic switches.
The digital logic probe is a diagnostic tool utilized for testing and analyzing digital circuits. The core...
How to Measure Analog Distance Sensor
This video demonstrates the process of reading an analog voltage, computing data, and controlling LEDs using a Sharp GP2D12 Infrared (IR) sensor. The PDQ board connects to a host PC via a serial cable, operating at a baud rate of...
Multimeter AC voltage measuring circuit
The voltage converter can be configured to switch between AC voltage ranges using a selector switch. The measurement circuit is depicted in the accompanying figure. In this configuration, a shunt resistor is placed in parallel with the header, maintaining the...
Multimeter Shunt
The current range in multimeters, especially the more affordable models, is limited by the load capacity of the internal shunts to 1 to 2 A. A precision heavy-duty resistor from manufacturers such as Dale or RCL (0.1 Ω; 20 W;...
5 mA S METER
The circuit designed for a 5 mA meter movement utilizes a two-stage voltage amplifier comprising transistors Q1 and Q2. An emitter-follower output stage, represented by transistor Q3, functions as an impedance-matching stage. The audio frequency (AF) input for an S-9...
Analog Equaliser
The time constant of R1C1 determines the low cutoff frequency, while the time constant of R2C2 determines the high cutoff frequency. The pass-band gain, Avpass = R2/R1. For a high-pass filter, Za must be capacitors and Zb resistors. By substituting...
Analog Mains Frequency Meter
Mains frequency is pretty stable and it is unlikely that you have to measure it but if you have an emergency generator you might find this circuit useful as it will give an indication whether the generator is running too...
The 6090 Digital Decoder
This is an image Schematic. No Description available.
The provided input indicates that there is a schematic image, but no additional descriptive information is available regarding its components, functionality, or application. In the context of electronic schematics, such images typically...
Homemade Digital CALL-ID English Version
The reason for this project was to facilitate a quick installation for a local friend 10 km away, enabling the start of real-life testing to identify and resolve bugs and problems before releasing it to other users. The software is...