Power diode - Circuitos electrónicos
Some laser tag or simulated combat games can use this circuit to send short bursts of modulated laser light at the opponent's vest, equipped with a matching light receiver. The circuit operates from three 1.5v cells (4.5v) that should provide enough energy for about 200, 000 shots.
Tutorial, information overview of the basics of the zener voltage regulator circuits and the way in which a zener diode can be used to provide a reference voltage in an electronics power supply.
Resistors in Light Emitting Diode (LED) Circuits An LED (Light Emitting Diode) emits light when an electric current passes through it. The simplest circuit to power an LED is a voltage source with ?¦
This circuit provided a regulated output without a power transformer. It is similar to common circuits, except that a zener diode is replaced with an SCR. This is far more robust against line voltages surges than a zener diode version, plus there is no heat generation. Circuit designed by Andrew R. Morris, all rights reserved.Discovercircuits.com is your portal to free electronic circuits links........
Description Here's a circuit to create a buzzcoil using a standard automotive ignition coil. A 556 dual timer is used to establish the frequency and duty cycle of the coil current. One of the timers is used as an oscillator to generate the 200 Hz rectangular waveform needed to control the (IRF740 MOSFET) while the second timer switches the oscillator on and off as the breaker points open and close (closed = on). The result is a steady stream of sparks from the ignition coil spaced about 5 millis.......
Accurately monitor battery voltage with LM3914 LED bar graph driver
A collection of simple but useful circuits made with silicon diodes. (6/14/2006)
Category: Motor controls Motor Speed Regulator This circuit regulates the speed of a small drill motor I use for PC board work. It is much handier for [. . ]
Variable desktop power supply which will convert a high input voltage (12V) from the SMPS / PSU of a desktop computer into small output voltage (1. 25 to 9 volts). This converter will be very beneficial for electronics hobbyists.
Up Down Counter
Description The LED circuit below is an example of using 25 white LEDs in series connected to the 120VAC line. It can be modified for more or less LEDs by adjusting the resistor value. The exact resistance will depend on the particular LEDs used.But working out the resistor value is a bit complicated since current will not continously flow through the resistor. In operation, the output of the bridge rectifier will be about 120 DC RMS or 170 volts peak. If we use 25 white LEDs with a forward volt.......
Black Light, schematics
The PIN Diode is used in many radio frequency and other circuits where the additional layer of intrinsic material between the P and N regions gives it some useful characteristics.
25w audio mosfet amplifier, circuit diagram, electronic project
This paper presents a UC3843 control multiple small power DC / DC power module detailed design process, focusing on the design of multiple-output power modules and single output of the different details of the DC / DC power modules in the new common UC3843 chip design of the external circuit parameters are given multiple-output module power transformers and coupled inductors in the design process and meet the performance indicators should be noted that a variety of issues........
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