TREE

This is a simple Project of 12 V AC Dimmer Circuit Diagram. 12-V AC Dimmer Circuit Diagram The circuit described here is derived from a conventional design for a simple lamp dimmer, as you can see if you imagine a diac connected between points A and B. The difference between this circuit and a normal diac circuit is that a diac circuit won’t work at 12 V. This is the fault of the diac. Most diacs have a trigger voltage in the range of 30 to 40V, so they can’t work at 12 V, which means the dimmer also can’t work. 12-V AC Dimmer Circuit Diagram The portion of the circuit between points A and B acts like a diac with a trigger voltage of approximately 5.5 V. The network formed by R1, P1 and C1 generates a phase shift relative to the supply voltage. The ‘diac equivalent’ circuit outputs a phase-shifted trigger pulse to the triac on each positive and negative half-cycle of the sinusoidal AC voltage. This works as follows. First consider the positive half of the sine wave. C1 charges when the...

Who never used a multimeter Chinese yellowing that shoot the first resistor! Despite being heavily criticized, this multimeter is identical to any other, is a lightweight tool, compact, inexpensive and reliable. It has as main component IC 7106, which is an analog to digital converter, with output to liquid crystal display (LCD) 3 and 1/2 Digits.  The Marcelino (which may have other colors), has several brands and models, but his real name is 830, there are versions without the test transistors, there are also variants with signal generator 50Hz, thermometer, continuity test with back-light, etc. This multimeter can measure DC Volts 0.1 mV to 1000V, AC Volts 0.1V to 750V, Ampere DC 0.1 mA to 10A, Ohm 0.1 Ω to 2MΩ, diode and hFE for bipolar PNP transistors and NPN. Basic scheme of Digital Multimeter circuit diagram  

This is a Simple Project of Remote Control Receiver Circuit Diagram. An infrared receiver, or IR receiver, is hardware that sends information from an infrared remote control to another device by receiving and decoding signals.This circuit is based on the Sharp GP1U52X IR module and 1NS8048L microprocessor. The GP1U52X is a hybrid IC/infrared detector that provides a strong clean signal for later filtering and demodulation. Remote Control Receiver Circuit Diagram

Automatic Voltage Stabilizer with PIC16F873A Download links for the article:  Google docs (go to the link, click File in the PDF window, then click Download): https://docs.google.com/file/d/0B4SoPFPRNziHb3VrX3JhWko3d1E/edit Scribd link: http://www.scribd.com/doc/207498741/Automatic-Voltage-Stabilizer-with-PIC16F873A 4shared download link: http://www.4shared.com/office/ktU0k9dqba/Voltage_Stabilizer.html You can download all the files related to the voltage stabilizer: Google docs (go to the link, click File in the PDF window, then click Download): Code: https://drive.google.com/file/d/0B4SoPFPRNziHbWtkVUc1VUM1REU/edit?usp=sharing HEX: https://drive.google.com/file/d/0B4SoPFPRNziHSVJ1a0t2STNDd3M/edit?usp=sharing PCB: https://drive.google.com/file/d/0B4SoPFPRNziHdkE0SzI4SDQ5V3M/edit?usp=sharing PCB images: https://drive.google.com/file/d/0B4SoPFPRNziHNEtSQlVtX2x4VWc/edit?usp=sharing https://drive.google.com/file/d/0B4SoPFPRNziHQXl2eWtydmh3WkU/edit?usp=sharing https://drive.google.c...

One of the biggest decisions that people need to make when deciding on an auto sound system is the decision of whether or not have the system professionally installed. On the one hand, it will add a pretty hefty fee to the bottom line but you just might find that the fee is well worth the expense you'd have to pay to fix any mistakes you might make along the way. The truth of the matter is that installing an auto sound system is not an easy task and requires no small degree of skill and concentration. I'm not sure about you but I'm in short supply of both when it comes to technical matters such as this and would much rather not risk my car, which will cost a lot more to repair if I make a mistake than the couple of hundred dollars that professional installation might require. When it comes down to it there are many benefits to having your sound system installed by professionals. Below you will find a few of these benefits. 1) Sound systems are huge investments. Most automob...

This is the simple Controller of Solar charger Circuit Diagram .When connecting a solar panel to a rechargeable battery, it is usually necessary to use a charge controller circuit to prevent the battery from overcharging. Charge control can be performed with a number of different circuit types. Lower power solar systems can use a series analog charge controller. Series regulators control the charging current by interrupting the flow of current from the solar panel to the battery when the battery reaches a preset full voltage. MPPT controllers use an inductor for energy storage and a high frequency switching circuit to transfer the energy to the battery. This circuit is for a shunt-mode charge controller. In a shunt-mode circuit, the solar pane l is permanently connected to the battery via a series diode. When the solar panel charges the battery up to the desired full voltage, the shunt circuit connects a resistive load across the battery to absorb the excess power from the solar ...

Types of Sensors, Advantages & Disadvantages of all types Sensors, Applications of Sensors  One type of feedback frequently needed by industrial-control systems is the position of one or more components of the operation being controlled. Sensors are devices used to provide information on the presence or absence of an object. Sensors include limit switches, photoelectric, inductive, capacitive, and ultrasonic sensors. These products are packaged in various configurations to meet virtually any requirement found in commercial and industrial applications.  In addition to the advantages and disadvantages of each of these sensor types, different sensor technologies are better suited for certain applications. The following table lists the sensor technologies.  Sensor Advantages Disadvantages Applications Limit Switch Sensor •High Current   Capability •Low Cost •Familiar “Low- Tech" Sensing ·   Requires Physical Contact with Target ·   ...

Trial Run of Delta PLC Before Starting the Trial Run of Delta PLC anyone should check following things Power Indication of Delta PLC 1. At the front of the MPU or the expansion unit, there is a “POWER” LED. When the MPU is powered ON, the LED (in green) will be ON. If the indicator is not on when the MPU is powered up, it means there is problem that DC power supplies to PLC. Thus, it is important to check whether the wiring of +24V and 0V are properly conducted. If ERROR LED is blinking swiftly, it means +24VDC does not supply enough power to delta PLC. 2. If the other indicator, “L. V”, that locates at the front of the extension unit is on, it means that the input power voltage to the extension unit is insufficient, and the output from the extension unit should be prohibited. Preparation 1. Make sure that the power wiring and the I/O wiring are both conducted properly before the power ON. Please ensure NOT supply AC110V or AC220V to the I/O terminals, or the wiring might be short cir...