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Build a low-cost and very simple Automotive Electronic Circuit Project of USB car charger circuit diagram. This USB car charger circuit adapter from car cigar socket project is a DC DC power converter that safely converts the 12V car battery voltage into stable 5V. This circuit can be used to supply power from a car cigar lighter socket to a portable device that require a 5 volts.  USB Car Charger Circuit Diagram: This circuit makes it possible to power/recharge any USB power-operated device, using in-dash board cigar lighter socket of your car. The DC supply available from the cigar lighter socket is fed to an adjustable, three-pin regulator LM317L (IC1). R1 and R2 resistors regulate the output of IC1 to steady 5V, which is available at the ‘A’ type female USB socket. Red LED1 indicates the output status and zener diode ZD1 acts as a protector against high voltage. As you can see in the circuit diagram, the circuit is very simple and requires just few common cheap components. Even...

With just a few days until Apple's big event, we're at the height of rumor season. Will there be a budget version of the iPhone announced? Most likely. Could the next-generation iPhone come with a fingerprint scanner? Eh, maybe.  We won't know what Tuesday will bring for sure, but in the meantime, here's a look at the biggest rumors making the rounds online: Rumor 1: The Name Rumor : The next-generation iPhone will be called the 5S. Plausibility : If anything is a shoe-in, it's that the next-generation iPhone will debut. We've seen many pictures and videos of the model hit the web, and assuming those are authentic, we already know a good chunk of what to expect. The name itself, though, is still up in the air (it could be called the iPhone 6). Then again, packaging for Apple's rumored budget iPhone 5C has been spotted, so we're expecting it to stay in the 5 family for now.  Source : Everyone. Basically. Rumor 2: Larger Display Rumor : The iPhone's 4....

I have previously shown how to calculate the values for the sine table. Now I will show you how to use that sine table for generating a sine wave using a PIC16F684. Why PIC16F684? It is a nice little 14-pin PIC that contains all that is needed for SPWM (sinusoidal pulse width modulation) – the ECCP module. Since the ADC or comparator or other peripherals are not used and there are enough pins, I selected the PIC16F684. You can find the tutorial here: http://www.blogspot.com/2016/01/generation-and-implementation-of-sine.html Let’s run the 16F684 from a 16MHz crystal oscillator and use a 16kHz switching frequency. So, the required value of PR2 is 249. The sine table (for half a cycle) is: 0, 25, 49, 73, 96, 118, 139, 159, 177, 193, 208, 220, 231, 239, 245, 249, 250, 249, 245, 239, 231, 220, 208, 193, 177, 159, 139, 118, 96, 73, 49, 25 '''''''''''''''''''''''''''''''...

Modalities of Using the ADC Module of PIC16F877A View on scribd Direct download link to the PDF

Pin diagram : Micrcontroller 8051 is available in different packages in market DIP (Dual Inline Package),QFP (Quad Flat Package), TQFP (Thin Quad Flat Package), PQFP (Plastic Quad Flat Package) etc. Among them DIP package is mostly used. For explaining the pin diagram, we used here  40 pin DIP package. Pin configuration in detail is as given below : Pin-40 : We use this pin for power source Vcc . Usually its +5V DC.  Pins-32-39: We call this pin collectively Port 0 (P0.0 to P0.7) – It can be used as an I/O port as well as lower order address and data bus signals are multiplexed with this port  for external memory interfacing. It  is a only one bi directional I/O port in microcontroller 8051, it requires  external pull up resistors  to function this port as I/O port. Pin-31: We call this pin as 'ALE' i.e. Address Latch Enable which is used to demultiplex the address and data signal of port 0 while external memory interfacing. Two ALE pulses are required fo...

Project of Automatic Plant Irrigator Circuit Diagram. The circuit presented here waters your plants regularly when you are out for a vacation. The circuit comprises a sensor part built using only one op-amp (N1) of quad op-amp IC LM324. Op-amp N1 is configured here as a comparator. Two stiff cop-per wires are inserted in the soil containing plants. As long as the soil is wet, conductivity is maintained and the circuit remains off. When the soil dries out, the resistance between the copper wires (sensor probes A and B) increases. If the resistance increases beyond a preset limit, output pin 1 of op-amp N1 goes ‘low’. Automatic Plant Irrigator Circuit Diagram Automatic Plant Irrigator Circuit Diagram This triggers timer IC2 (NE 555) configured as a monostable multivibrator. As a result, relay RL1 is activated for a preset time. The water pump starts immediately to supply water to the plants. As soon as the soil becomes sufficiently wet, the resistance between sensor probes decreases ra...

Some of the unsuccessful circuits in the early stage of SMPS learning During the last five years of my venture in SMPS circuits, I had failed many hundred times trying to design successful SMPS circuits. Since I am not institutionally trained, most of my circuits were based on test and trial, taking help from books, internet, forums, application notes, datasheets, etc. Hundreds of hours of failure could not deter me from relentless pursuit to learn - rather, taking lessons from these failures, I moved forward. Now, I am somewhat confident that I learnt a little bit of SMPS and can venture in SMPS circuits confidently.

This is a simple Project of Water level Sensor and Controller Circuit Diagram. When the water level is low, the probe is out of the water and SCRl is triggered on. It conducts and imposes a heavy load on transformer Tl`s secondary winding.   Water level Sensor and Controller Circuit Diagram That load is reflected back into the primary, gating triac TRl on, which energizes the load. If the load is an electric valve in the water-supply line, it will open and remain open until the water rises and touches the probe; this shorts SCRl`s gate and cathode, thereby turning off the SCRl, which effectively open-circuits the secondary. That open-circuit condition, when reflected back to the primary winding, removes the triac`s trigger signal, thereby turning the water off.

I turned the switch on and BOOM! That noise, the tiny puff of smoke and the accompanying smell had become far too familiar. I looked on in confusion at all the failed electronics components in front of me. I needed answers. Why did the H-bridge circuit not work as “claimed”? Books showed numerous such circuits. The Internet was not short of designs either. They were all similar though. I had done my research. I thought I understood the principles and modalities of operation. Then, where did the fault lie? Frustration was creeping in. But I just had to find the fault and fix it. I wanted to make the SMPS based inverter because I could learn so much in a field completely new to me and then use the inverter at home during power cuts. In that one night of experimentation, I had failed repeatedly, damaging 24 IR2110’s and a lot more components. I had applied all I had learned thus far. Success, however, eluded me. After repeated failures, I posted my problem on online electronics forums. Nu...

 Ladder ,SFC ,Instruction Languages  PC Based Programming  Ready to use Configuration.  Programming and operating software’s.  Soft copy of PLC introduction and Tutorials.  Choice of PLC and expansion module.  Expandable input/ output.  Experiment with Switches, LED's  Built-in DC power supplies.(SMPS)  Ready experiments.  Operating Manual  Compact size.  Application software for stepper motor control, Ac motor control Level control & elevator control. List of Experiment that can be performed. Simple Input Output Simulation  Timer and Counters (Step Sequence) Logic Gate Simulation Relay Simulation Traffic Light Simulator  Stepper Motor Interfacing  Elevator control.  Ac motor interfacing

If you are seriously hoping to save a significant chunk of change when it comes to your auto sound system, you should consider saving on installation. Under ordinary circumstances I urge people to be very, if not overly cautious when it comes to installing your own auto sound systems. The thing is, that some people really are talented when it comes to activities such as this. Beyond talent, some people have frightening skills with electronics and if you are one of those, then by all means consider the money you could save yourself (or the extra money you'd have to invest in your system?). We all know that money doesn't grow on trees and when you've been saving up for quite a while to get the sound system you really want it's a serious joy killer to have to wait another month or two in order to save up enough money to cover the cost of the installation of your sound system. If you or someone you know and trust (trust being the operative word in this instance) can do the ...

Basket (frame) Made of a metal plate that will support all parts of the speaker where the speaker of the other speakers can be attached to the intact  Magnet Here is used to generate a magnetic field of permanent magnets to be used to drive the voice coil, so as to produce sound. Parts of speaker Voice Coil Voice Coil is an important part of a speaker. Voice coil consists of Robbin (where rolled coil) and coil (the coil BWR - Brass Wire Rope), Coil is going to move in accordance with the signal diterirna. Spieder or Damper Spider or suspension dampers are used to speakers that serve to dampen the vibrations of the voice coil, so the voice coil can move freely. Cone Paper Paper Cone is part of the suspension of the speaker who serves simultaneously as an amplifier of vibration caused by the voice coil so it can form a clear voice signal received from the speakers. Dust Cap Dust Cap serves to channel sound vibration with paper cone and protect the inside of the speaker (where the air...

This circuit will supply up to about 20ma at 12 volts. It uses capacitive reactance instead of resistance; and it doesn't generate very much heat.The circuit draws about 30ma AC. Always use a fuse and/or a fusible resistor to be on the safe side. The values given are only a guide. There should be more than enough power available for timers, light operated switches, temperature controllers etc, provided that you use an optical isolator as your circuit's output device. (E.g. MOC 3010/3020) If a relay is unavoidable, use one with a mains voltage coil and switch the coil using the optical isolator.C1 should be of the 'suppressor type'; made to be connected directly across the incoming Mains Supply. They are generally covered with the logos of several different Safety Standards Authorities. If you need more current, use a larger value capacitor; or put two in parallel; but be careful of what you are doing to the Watts. The low voltage 'AC' is supplied by ZD1 and ZD2...

Fujifilm has announced the launch of a new model of a compact digital camera with premium FUJIFILM X-A2, which, according to the manufacturer, a high level of color reproduction, improved auto-focus and high resolution. In X-A2 implemented new features such as Eye Detection AF (auto-focus with eye detection function), Auto Macro AF (autofocus macro) and Multi-Target «MULTI AF» (Multipoint AF), provides fast and accurate auto focus. This model is used for the first time turning the LCD screen at an angle of 175 degrees, which simplifies the creation of self-portraits, and kit lens XC16-50 mm F3.5-5.6 OIS II, as the company said, is the best in class working distance of 15 cm (approximately 7 cm from the lens) for closeup. The main features of Fujifilm X-A2: 16.3-megapixel APS-C Image processor EXR Processor II Standard sensitivity range of ISO200 to ISO6400 can be increased to ISO12800 and ISO25600 even Mode dial that allows you to quickly select the desired shooting mode AF mode with t...