Controller Circuit Board The four channel PMT controller board is a PIC microcontroller based device that communicates with a PC by USB as an HID device and with a PIC-based “hand unit” via PIC-to-PIC RS-232 protocol. These two external inputs (USB and RS-232) send strings to the PMT controller that: * Sets the four high voltage levels of the PMTs * Provide four bipolar offset voltages for black level adjustment on an external amplifier system * Control a 2 level programmable gain... Read Full Story

let us make a thermostat in the room, this circuit energizes the relay when the temperature rises above a specified level. The second series of energy in the relay when the temperature falls below a preset level. Both series are virtually identical. The only difference between them is the polarity of the transistor. Thermistor value is not critical. What matters is the voltage on pin 5 & 6. Thermisto r any value should work satisfactorily. But you may need to change the value of R1 –... Read Full Story

Definition Programmable Logic Controllers (PLC) is an electronic computer that is easy to use control functions for various types and levels of various difficulty. Definition Programmable Logic Controller according Capiel (1982) are: electronic systems that operate digitally and is designed for use in industrial environments, where the system uses a programmable memory for internal storage of instructions that implement specific functions such as logic, sequence, enumeration and arithmetic op... Read Full Story

The M52221 DEMO is a low-cost development board for the Freescale MCF52221 Cold Fire microcontroller.  Application development is quick and easy with the included DB9 serial cable, integrated BDM, and USB cable.  A 128 MB flash-drive and 6-in-1 USB cable provide support for the integrated USB PHY.  CodeWarrior Development Tools provide application develop-ment and debug support.  The integrated BDM allows easy application development and de-bugging.  An optional BDM port compatible with stand... Read Full Story

USB to RS232 Converter Circuit Description For the complete equipment needed to make schema PC via a USB connection to RS232 converter We scan controller is an independent board that communicates with the PC via USB connection. This encourages galvos XY scanner and generate signals for data acquisition time. USB to RS232 converter board is a PIC microcontroller-based device that receives signals from a PC USB and change the signal to an RS232 output. Output signal can be sent to one of the th... Read Full Story

How to make radio-guided Radio Circuit Schematics radio is one of the entertainment as the radio has a value of information and entertainment.  but how do we make it? was very simple answer, here is a guide to Circuit Schematics Radio. The first requirement is the hardware that receives the radio transmission. We have chosen to use the Circuit Schematics Radio. The chip was chosen because it has a low number of external components compared to other radio chip. Circuit Schematics Radio Product... Read Full Story

30-watt amplifier scheme is continued from other pages shown below provides an energy boost in accordance with the input of 4 watts to 6 watts. increase power output function is to increase the distance of the sender and recipient. This circuit is designed to cover 88-108MHz FM Broadcast Band. However, this circuit is very stable in my place and provide a clean output through seven (7) Butter price element low-pass filter The core of the circuit is 2SC1946A VHF RF power transistors. This tran... Read Full Story

How to create a tone control audio clean, gently, but firmly? afiata.com always wore these transistors. The first transistor (left side) acted as a buffer. Provides circuit with high input impedance, around 250k has a voltage gain of slightly less than unity. As Baxendall tone control circuit is a passive design, all audio frequencies are attenuated. Position tone control audio and reactance of the capacitor change the tone control audio response. Last Transistors give a little push around 3... Read Full Story

Whether the purpose of transmitting TV Make? Different course different, the most important is to effectively cables, usually emitted in the room to receive room without cables. Afiata.com trying to invite you to learn with a TV transmitter uses FM modulation to 1 standard for voice and PAL video modulation. Audio signal to be modulated is pre-amplified by using the transistor Q1 and associated components. Transistor Q2 has two jobs: the production and modulation carrier frequency. Pre-amplif... Read Full Story

What we aim to make a series fm radio transmitter? because we want to know the results of the schema obtained from books or the Internet or also because the task of teachers in the school, is fm radio transmitter circuit. This is a FM transmitter circuit using semiconductor Maxim MAX2606 IC. In a series of nominal frequency is set to 100 MHz by the inductor L1, (390nH). Left and right channel audio signal from your source added by R3 and R4, and attenuated by R2 POT. R2 can be used as a volu... Read Full Story