This circuit, designed for audio applications, allows the user to select which input signal will be enabled when the system is switched on. The setting is not fixed but is stored in an EEPRO... Read more
There are a lot of digital voltmeter modules on the market today at advantageous prices. Apart from their very high input impedance, they have the advantages of being accurate, versatile, co... Read more
A solar panel is a collection of solar cells. Lots of small solar cells spread over a large area can work together to provide enough power to be useful. The more light that hits a cell, the... Read more
The LM1830 fluid detector IC from National Semiconductor is designed to be able to detect the presence of fluids using a probe. This chip requires a relatively high supply voltage and is not... Read more
The 40106 is a versatile CMOS IC containing six Schmitt trigger inverters. It can be used to implement a set of alternating-action switches with hardware contact bounce suppression. A... Read more
The big fear of every developer of a microcontroller or computer-driven control system is that the computer or controller could crash while it is in the middle of controlling something and t... Read more
For load currents, up to 4 A the author has used a bistable relay to disconnect the load on a 12 V battery to avoid deep-discharge. How can we provide the same function at higher levels of l... Read more
A negative supply voltage may be obtained with the use of a special inverter IC. but such ICs are not always readily available. Fortunately. if the current drawn is not excessive, a standard... Read more
HV-2405E IC with some circuitry act as power inverter with 100-260V A.C mains supply to 5-24 V D.C supply. The peak output current of the device is 50 mA. The chip contains a pre-regulator t... Read more
What is UPS and Its application? An inverter or UPS is a device that typically provide power backup in emergency to a device or load, when normal electricity power source is down. UPS is an... Read more
