Advertisement
Sound Level Meter – Circuit Schematic
Sound Level Meter
A sound level meter circuit with diagram and schematic using IC LM 3915,which is an audio level measurement chip.Used to display amplifier sound level or a micr...
RMS Reading Voltmeter – Circuit Schematic
RMS Reading Voltmeter
RMS value of the sinusoidal waveform is meas ­ured by the average reading voltmeter of which scale is calibrated in terms of rms value. This method is quite si...
Q-Meter – Circuit Schematic
Q-Meter
We know that every inductor coil has a certain amount of resistance and the coil should have lowest possible resistance. The ratio of the inductive reactance to...
Monolithic/Hybrid Analog To Digital (A/D) Converter – Circuit Schematic
Monolithic/Hybrid Analog To Digital (A/D) Converter
The basic ANALOG TO DIGITAL (A/D) CONVERTER CIRCUIT has already been explained in an earlier post. Apart from it, there are also many types of monolithic analog...
Micro ampere meter circuit using uA 741 – Circuit Schematic
Micro ampere meter circuit using uA 741
The micro ampere meter shown here is basically a DC millivolt meter. The circuit gives full scale deflection for 0. 1V input. The current to be measured is pass...
LED Thermometer-Temperature Measurement Circuit using LM 34 IC – Circuit Schematic
LED Thermometer-Temperature Measurement Circuit using LM 34 IC
An LED Thermometer which can be used as a temperature sensor or temperature measurement circuit built using LM 34 -a Fahrenheit display or LM 35-degree Celsius ...
High impedance DC voltmeter – Circuit Schematic
High impedance DC voltmeter
A high impedance DC voltmeter using a uA741 IC is shown here. The operational amplifier is used as a non-inverting DC amplifier in which the negative feedback i...
Heart rate monitor using 8051 microcontroller .measures the heart rate from finger tip – Circuit Schematic
Heart rate monitor using 8051 microcontroller .measures the heart rate from finger tip
Heart rate monitor using 8051 microcontroller. Measures the heart rate from the finger tip using IR diode photo transistor pair (Photoplethysmography). AT89S51 ...
Frequency Counter Circuit using Micro Controller – Circuit Schematic
Frequency Counter Circuit using Micro Controller
Simple frequency meter or frequency counter circuit with LCD display and Avr micro controller.DIY schematic circuit diagram & embedded c code.....
Electronic Multimeters – Circuit Schematic
Electronic Multimeters
It is one of the most versatile general purpose instruments capable of measuring dc and ac voltages as well as current and resistances. The solid-state electron...
Digital voltmeter using ICL7107 – Circuit Schematic
Digital voltmeter using ICL7107
The circuit given here is of a very useful and accurate digital voltmeter with LED display using the ICL7107 from Intersil. The ICL7107 is a high performance, l...
Digital thermometer circuit based on CA3162 CA3162 and LM35 – Circuit Schematic
Digital thermometer circuit based on CA3162 CA3162 and LM35
A simple digital thermometer circuit with out a micro controller and having a seven segment LED read out is shown here. The circuit is based on three ICs: CA316...
DC Voltmeters – Circuit Schematic
DC Voltmeters
This type of voltmeter is very common because of its low cost. This instrument can be used only to measure voltages of the order of milli-volts owing to limited...
Capacitance meter using LM2917 – Circuit Schematic
Capacitance meter using LM2917
The circuit diagram of a simple capacitance meter using IC LM2917 is shown here. The LM2917 is a high gain monolithic frequency to voltage converter IC from Nat...
Basic Controls of a CRO – Circuit Schematic
Basic Controls of a CRO
Number of controls are required to be provided on a panel of CRO to facilitate its proper functioning. Intensity control is provided for adjustment of brightnes...
Balanced Bridge Voltmeters – Circuit Schematic
Balanced Bridge Voltmeters
Such voltmeters can be used for measurement of both dc and ac voltages and are very popular. These voltmeters are available in both versions, vacuum tube type a...
Analog to Digital Converters - Successive Approximation Typeworking – Circuit Schematic
Analog to Digital Converters - Successive Approximation Typeworking
Analog to Digital Converters - Successive Approximation Type Analog to Digital Converter, working,circuit diagram.....
Voltage Level Detector Circuit – Circuit Schematic
Voltage Level Detector Circuit
The design came from the interest of finding a new technique of analog to digital conversion. The two types of ADC (Analog to Digital Converter) that inspired m...
Digital Voltmeter of your Own – Circuit Schematic
Digital Voltmeter of your Own
How to build a voltmeter for DC voltage measurements without using multimeter testing This is a simple digital voltmeter circuit that can measure voltages from ...
What is analog to digital converter ADC using LM324 IC – Circuit Schematic
What is analog to digital converter ADC using LM324 IC
The process of converting an analog voltage into an equivalent digital signal is known as Analog to Digital Conversion, abbreviated as ADC. An ADC is an electro...