In many applications it is the current that requires another measurement, such as measuring voltage. Before mentioning the current measurement, it is appropriate to define briefly what the c... Read more
POWER FACTOR While simple loads do not draw reactive power from the grid, complex loads also receive reactive power from the grid as well as active power. It is desirable that the reactive p... Read more
Mobile phone, mp3 player etc. a simple charging circuit that you can use for many devices .. circuit 7805 if installed on the regulator if you are going to directly 5v 7805 no need to use on... Read more
The circuit is designed to be unaffected by daylight. That is, the circuit can sense infrared rays with a frequency of only 2.7 kHz thanks to capacitors and resistive filters. In order to op... Read more
In digital circuit design, especially in microprocessor or measuring applications, it is often necessary to produce a clock signal by dividing down a master clock. The 4-chip solution sugges... Read more
When designing a precision outdoor temperature sensor it is a good idea to electrically isolate the sensor from the signal conditioning circuitry to protect it from voltage spikes such as mi... Read more
Constant frequency PWM Using 555-Timer With the basic astable circuit, the duty ratio cannot be controlled without affecting the frequency. Using the above circuit, it is possible to maintai... Read more
The MAX7378 contains two oscillators and a power-on reset circuit for microprocessors. The Speed input selects either 32.768 kHz (LF) or a higher frequency, which is pre-programmed. The type... Read more
Maxim (www.maxim-ic.com) has produced a completely self-contained TTLchip in a very small three-pin outline. The MAX7375 family of oscillators operates in the range of 1 MHz up to around 10... Read more
Crystals usually operate at fundamental frequencies up to about 15 MHz. Whenever higher frequencies are required a frequency multiplier is placed after the crystal oscillator. The resulting... Read more