The percentage of water present in the air is termed as humidity. Water as gaseous state called vapor. As the temperature of the air increases more water vapor can be generate. Humidity measurement in industries is critical because it may affect the business cost of the product and the health and safety of the personnel. […]
Digital humidity sensor using PIC microcontroller Read More »
Note: Microcontroller PIC16F73 can be used instead of pic16f877a. This time we will see how to measure AC voltage parameters with the help of micro-controller. First we will know about AC voltage parameters, then we will do the whole work step by step. What is AC(Alternating Current): “In alternating current (AC, also ac), the flow of electric charge periodically reverses direction.
AC Voltage measurement using PIC16F877A microcontroller Read More »
One important parameter in embedded system designing is power consumption. This parameter is directly related to the battery lifetime, if the system is to be powered from a battery. In order to determine the power rating of your designed system, you need to know how much current the system draws from the source at a
A new multi-function power supply unit for my Embedded Lab Read More »
Due to its simplicity (requires minimum external components) and high availability, LM386 is very popular among hobbyists for use in low-voltage audio amplification applications. Most of the time a potentiometer is used at the input side of LM386 to provide a volume control in the output speaker. The potentiometer does not control the gain of the
LM386 based stereo audio amplifier with digital volume control Read More »
A switching voltage regulator is one of my favorite circuits. In school, they were the first circuits I built where I understood how transistors worked. In fact, they were the first circuit I saw an inductor being useful! Switching regulators are incredibly efficient when designed properly. Of course, this detail about design is important. They
Switching Voltage Regulator Tutorial Read More »
Description The MAX44299 is a low-side current, voltage, and power monitoring circuit that provides an analog output current proportional to the measured current, voltage, and the internally calculated instantaneous power. Instantaneous power is calculated internally by multiplying the load current and a fraction of the load voltage set by an external resistive divider. All three
Current and Voltage Sense with Power Measurement Read More »
Many times, designers are faced with the need of generating analogue or analog voltage levels in purely digital circuits. Although the market provides today a very broad range of dedicated digital-to-analogue converters, putting such a device in the schematic has a negative impact on the overall cost of the system. 1. Introduction In the first
How-to use PWM to Generate Analog (or Analogue) Voltage in Digital Circuits Read More »
Everything has now been ordered and paid for – the BooSTicks and the add-ons from Backerkit are all in process or on their way now. There were a few unexpected minor delays in the process of getting surveys set up and returned, accounts set up and linked and so on, so we don’t expect to
BooSTick – small AA voltage booster Read More »
he purpose of this article is how to generate analog voltage with digital circuit. Although the market provides today a very broad range of dedicated digital-to-analogue converters, putting such a device in the schematic has a negative impact on the overall cost of the system. There are however, cheap methods of creating the required voltage
Generating Analog Voltage with Digital Circuit Read More »
A popular power source for portable devices is a single lithium-ion cell with 4.2V at full charge and 2.8V at end of discharge. However, some functions within portable electronics, such as a SIM card and DSP, require 2.8V and 3.3V. These are normally provided by low noise LDOs. The LDOs inputs (VCC) must be at
Choose the right step-up/down voltage regulator for portable applications Read More »
