Power supply - Circuitos electrónicos

Here is a circuit that will allow LED's to glow at a constant brightness throughout battery life or varying power supply voltage. This circuits is capable of saturating, allowing the battery voltage to get within 0. 3 volts of the LED voltage before the LEDs start to dim. This is far superior to just using a current limiting resistor. Circuit designed by Andrew R. Morris, all rights reserved.Discovercircuits.com is your portal to free electronic circuits links........

Circuitos electrónicos

http://discovercircuits.com/Andy/LED_Current_Regulator.htm

DescriptionSome lovers of High Fidelity headphone listening prefer the use of battery powered headphone amplifiers, not only for portable units but also for home ?table? applications. This design is intended to fulfill their needs. An improved output driving capability is gained by making this a push-pull Class-B arrangement. Output power can reach 100mW RMS into a 16 Ohm load at 6V supply with low standing and mean current consumption, allowing long battery duration. Circuit Diagram

Circuitos electrónicos

http://easycircuit012.blogspot.com/2013/08/01-a-hiqh-quality-headphone-amplifier.html

Here is a circuit that will allow LED's to glow at a constant brightness throughout battery life or varying power supply voltage. This circuits is capable of saturating, allowing the battery voltage to get within 0. 3 volts of the LED voltage before the LEDs start to dim. This is far superior to just using a current limiting resistor. Circuit designed by Andrew R. Morris, all rights reserved.Discovercircuits.com is your portal to free electronic circuits links........

Circuitos electrónicos

http://www.discovercircuits.com/Andy/LED_Current_Regulator.htm

Accurately monitor battery voltage with LM3914 LED bar graph driver

Circuitos electrónicos

http://www.reuk.co.uk/12-Volt-Battery-Monitor-Circuit-with-LM3914.htm

Circuitos electrónicos

http://circuitschematic.blogspot.com/search/label/Amplifier

This circuit can be used to activate a relay for two or three minutes. Pressing the switch the relay will be activated. Changing the 1M resistor with a variable resistor you can vary the time. The 0.01 capacitor is important because it prevents any false triggering. The circuit will work OK with 6 Volts without any modification. If you want to use 9 or 12 Volts, you need to change the relay with a 9V or 12V relay. Using this circuit with 120 VAC is not recommended, however, using the right parts.......

Circuitos electrónicos

http://josepino.com/circuits/?555_circuits2

Diseño de amplificador de audio de 9 o 12 voltios. Con el TDA2004, TDA2005 y TDA2009. sonido estereo o bridge de potencia, y amplificador con 24 voltios

Circuitos electrónicos

http://www.proyectoelectronico.com/amplificadores-audio/amplificador-tda2004-tda2005-tda2009.html

Free Electronic projects, schematics, diagramms, pcb, free electronic software and hobbilist electronics resources, electronic community and much more

Circuitos electrónicos

http://iq-technologies.net/projects/audio

Circuito de un sensor de proximidad para usarlo con una alarma . Simulación del funcionamiento echo con Livewire.

Circuitos electrónicos

http://www.electronica-electronics.com/Alarmas/Sensor_proximidad.html

Circuitos electrónicos

http://skory.gylcomp.hu/alkatresz/pwm vegfok philips UM10155_1.pdf

FM Band Monaural Transmitter 22 pF trimmer Use a multi-turn type for easiest frequency adjust. 0. 01 uF near coil 5k 100k 1k pot Audio Input (low-Z) 33 22k KV2201 1 uF [. . ]

Circuitos electrónicos

http://www.techlib.com/files/fmxmit.pdf

The project -programmable digital timer- presented here can be used for setting time intervals in the range of 1 to 99 minutes without using large resistor or capacitor.

Circuitos electrónicos

http://bestengineeringprojects.com/electronics-projects/programmable-digital-timer-circuit

This circuit is derived from an application note of L296, It is a Power Switching Regulator from ST. The advantage of using a switching regulator is that there is not much Heat Dissipation in this circuit.

Circuitos electrónicos

http://schematics.dapj.com/2005/04/digital-5v-power-supply-using-l296.html

Question Tagged: Home Improvement Electrical Wiring Dehumidifier Diy, Replies: 20

Circuitos electrónicos

http://able2know.org/topic/218003-1

Circuitos electrónicos

http://www.pablin.com.ar/electron/circuito/auto/fte369