In this post we are going to learn about one super old but gold IC called LM7912 or simply IC 7912. This one is not positive regulator like 7805 or 7812, but it is negative regulator which means it gives -12V output and not +12V. If you are making op-amp circuits or dual power supply […]
Explained
LM195/LM395 Power Transistors Explained [Enhanced Power Transistors with Full Internal Protections]
The LM195 and LM395 are both high efficiency power transistors that were initially manufactured by National Semiconductor Corporation, and later acquired by “Texas Instruments”. These special power transistors are intended to be used in high power switching applications, where low power dissipation and high current gain are critical parameters. These special power transistors are virtually […]
Vibration Sensor 801S Datasheet Explained
The 801S vibration sensor is a typical vibration detection and measurement module. The following are some of its main technical features, datasheet and characteristics: Datasheet in Details The 801S vibration sensor is very sensitive and can pick up even the smallest vibrations in its surroundings. Frequency Range: The module is made to detect vibrations that […]
IC 4020 Datasheet, Pinout Functioning Explained
The IC CD4020 is a 14-bit Binary Counter IC, manufactured by Texas Instruments. It consists of 12 output pins numbered Q1 to Q14, except Q2 and Q3. Whenever an Input clock pulse is applied to the clock pin of the IC, the binary value is increased from 00 0000 0000 0000 to 11 1111 1111 […]
IC 4018 Datasheet, Pinout Function Explained
IC 4018 is a 16-pin CMOS presettable divide-by-N counter, also known as a binary counter. It is commonly used in digital electronics for frequency division and timing applications. Description The IC 4018 family includes 5 Johnson-Counter stages, buffered Q outputs from each stage, and counter preset control gating. There are CLOCK, RESET, DATA, PRESET ENABLE, […]
Parallel Battery Charger Circuits Explained
In this post I have explained two methods of connecting batteries in parallel. The first one below deals with changeover circuit using SPDT switches to charge multiple batteries individually or collectively. These may be connected in parallel using a single battery charger and through a manual SPDT changeover switch bank. The seconds design talks about […]


