CD4017 is a Johnson 10 stage CMOS Decade counter IC. W can use it for low range counting applications. It is a 16-pin counter that can count from 0 to 10 by turning on the 10 outputs one by one on every positive edge of a clock. The circuit consists of CD4017 will save board … Read more
CD4026 is a 5 stage johnson decade counter belonging to a CD4000 series. It has many distintive features than other decade counters. Firstly, it is ideal for applications having low power consumption requirement. Secondly, CD4026 counts from 0 to 9 and then resets to 0. Additionally, the advantage of using this IC is that it … Read more
ICL7107 is a monolithic IC used for analog to digital conversions up to 31/2 digits. It houses display drive circuitry inside it bypassing the need of connecting an external drive circuit. The input impedance is quite high. Polarity and digital drivers, segment decoders, voltage reference, and a clock circuit is already available on its board. … Read more
LM311 is a dedicatedly designed high speed differential comparator responsible for comparing voltages. The operating supply voltage can range from -15 to +15V for OP-AMPs. This voltage is 5V if LM311 is to be used for logical operations. The compatibility of LM311 output with TTL and MOS circuits is quite good. LM311 can be used … Read more
Control-Integrated circuit for SMPS SG3525: Pulse frequency modulation and pulse width modulation are two types of techniques used in control integrated circuits for switch-mode power supplies. In Pulse frequency modulation technique on time of pulse remains constant but the frequency increases with the increase in load. But the Pulse frequency modulation technique causes some issues … Read more
74LS166 is an 8-bit shift register digital IC. In cased of 8-bit parallel communication device needs to send the data to the serial receiving device then an 8-bit shift register will be used. There is an IC 74LS166, which has eight parallel data input, one serial input, and one serial output. The IC is made … Read more
MOC3041 is an optocoupler but unlike other optoisolators, it has a special feature of zero-crossing based switching. It is based on zero-crossing. MOC304X series also used to operate the external TRIACS, SSR, and MOSFETS. MOC3041 is mostly used to control AC load switching by automatically detecting the zero cross but it has internal TRIAC which … Read more
The LM3916 is a monolithic integrated circuit used as a dot/bar display driver. It specializes in sensing various levels of analog voltages to operate ten LEDs, LCDs or vacuum fluorescent displays. The current flowing through these LEDs is so programmable and regulated that it bypasses the use of current limiting resistors in series with LEDs. … Read more
MOC3021 is a non-zero crossing based optoisolator consists of gallium arsenide infrared emitting diodes, optically coupled to a silicon-based triac. Optocoupler has multiple types and every type has almost the same operating functionality, but sometimes its internal structure makes it different from another optocoupler. There is also a TRIAC based optocoupler known as MOC3021. It … Read more
PC817 is an optoisolator consists of an infrared diode and phototransistor. In electric circuits, we use mostly filters to remove noise. The circuit based on the capacitor and resistor always removes the noise from the incoming signal but the value capacitor and resistor always depend on the incoming signal. This circuit is only applicable where … Read more