Motor Control Circuit design and regeneration of a three – phase inverter for supplying an asynchronous motor. The inverter is designed to drive a rack drill with approx up to 1 kW. The device will be constructed using integrated circuits. Single-purpose integrated Circuits simplify the design and manufacture of low-cost applications. And thanks to that…
For a long time I was going to share with you the materials on assembling a transistor amplifier with unipolar power, assembled in retro-topology, which is still of interest to some radio amateurs. At the forum Diyaudio this ULF can be found under the name APEXAX6. This circuit does not need DC Protect, because the…
Low frequency TDA8954 class D power amplifier circuit frequency crossover circuit and digital signal procesor (DSP) complete 2-way active speaker system, simulation schematics pcb desing and Speakers solidworks Speakers coreldraw autocad desing low – frequency amplifiers in Class D and their use in active bi-amp speaker systems. It also deals with it by means of…
UC3843D STEP-UP for supplying of notebook in car. Introduction presents dividing of switching power supplies followed by a choice and a proposal of power supply. In this work we can find the specific proposal of inductor, the proposal of electronic connexion and the proposal of PCB layout. In the last part of work there are…
Li-ion 14.4V Battery Pack UC3844 SMPS Charger the UC3844 integrated circuit is supplied directly from the DC link via the resistor R2. After the circuit switches on, the power transistor Q1 is powered by the auxiliary winding. The RCD cell, consisting of R3, capacitor C3 and diode D1, protects the power transistor from positive overflows…
USB ESR Meter Circuit The main part of the meter is a ATmega8 microcontroller that controls the entire device. Its main the task is to process measured data and perform calculations so that the result is real ESR value. This value is displayed on the LCD. Another task of the ATmega8 microcontroller is communication with…
Data logger project ADuC831 Datalogger Circuit data measurement in processes and followed by a microprocessor equipped with a datalogger based on one from the economical I51 series microcontrollers. Data logger control was implemented via RS232, RS485 or USB interface. The Datalogger is equipped with analog modules for temperature and atmospheric pressure measurements. The measured data…
LED brightness control gives you tremendous control over the light emitted by the LEDs. However, to use them in a safe manner for LEDs and other devices or electrical installations, use appropriate regulators and power supplies. Inputs of unused gates are attached to the power supply. The P1 10 kohm potentiometer allows the PWM to…
The way to create the “Reverb” effect can be divided into two types: mechanical and electronic, depending on the operation principle. The first and at the same time the oldest solution is the spring arrangement. In the second solution, analogue or digital delay lines are used. Effects built with springs give old-fashioned color, but the…
The first block is built on the NE555, which acts as a free-wave generator. VR1 50k potentiometer and C1 capacitor and VR3 100k potentiometer and capacitor C2 are responsible for the “rotation” speed. The VR3 potentiometer at maximum resistance increases the rotation speed. The rotation speed is in the range of 20 … 75 Hz.…