Circuitos energia solar

AA Battery Solar Charger

Battery Low Voltage Beeper

LED Mood Light

Low Power LED Voltmeter

PWM Motor Speed Controller - DC Light Dimmer

PWM Motor-Light Controller

Remote Solar LED light

SCC2 10 Amp Solar Charge Controller

Self Powered Solar Box Furnace

Seven Component Regulated LED Lamp

Solar Charged LED Utility Light

Solar Panel Charge Controller - Low Voltage Disconnect Circuit (SPC1)

Solar Panel Current Meter

SPC2 6 Amp Solar Power Center

Varios

12 Volt Toilet Tank Refiller

555 Timer-Oscillator Tutorial

files/Recopilacion Web/Varios/7.2V-Charger.pdf

741 Op-Amp Tutorial

4QD-TEC- Analogue Opto Isolator

4QD-TEC- Analogue Pulse Counter

Antennas

files/Recopilacion Web/Varios/Antennas.pdf

4QD-TEC- Audio Graphic Equaliser

4QD-TEC- Audio LED VU meter

4QD-TEC- Audio preamplifier circuits

4QD-TEC- Audio signal (sinewave) generators

4QD-TEC Electronics Archive

Battery Low Voltage Beeper

4QD-TEC- Battery monitoring circuits

Birdie Doorbell Ringer

Capacitors, Tutorial

4QD TEC Circuits Archive

4QD TEC Circuits Archive

4QD-TEC- Circuits- room thermometer

4QD-TEC- PUT Complimentary Feedback Pair

4QD-TEC- Current Loop Interface

4QD-TEC- Current sensing relay driver

4QD-TEC- Current sources and mirrors

Data Sheets Collection

4QD-TEC- Data Switch and Indicator

DC-AC inverter (1)

DC-AC inverter (2)

December 99 Project

Differentiation circuit

Digital dial

4QD-TEC- Discrete logic circuits

4QD-TEC- discrete op-amps

Electric power controller

Electronic Component Template

4QD-TEC Electronics Archive

4QD-TEC Electronics Archive

Frequency induction switch

4QD-TEC- Guitar effects - phaser

4QD-TEC- H bridge switch for small motors

4QD-TEC- H Bridges

HIFI

4QD-TEC Electronics Archive

files/Recopilacion Web/Varios/I2C Bus specs.pdf

Improved FM Stereo Modulator

4QD-TEC- Impulse changeover switches

4QD-TEC Electronics Archive

4QD-TEC Electronics Archive

Isolated Telephone Interface

June 2001 Project

LED counter

Lightning Activated Camera Shutter Trigger

4QD-TEC- Low distortion Audio amplifier

4QD- Mice- how they work

Microprocessor RS-232 Reset

MOSFET testing

Mosquito-hunter

Motorized Video Camera Mount

4QD-TEC- Multivibrators and Relaxation Oscillator Circuits

NiCd-charger

Nikola Tesla Page, Tesla Coils (Bill Beaty's Homepage)

Nikola Tesla Page, Tesla's power receiver

files/Recopilacion Web/Varios/Non Linear Ckt's & Devices.pdf

October 99 Project

4QD-TEC- A Person detector

files/Recopilacion Web/Varios/Phase-Locked Loop Tutorial, PLL.htm

PLL synthesizing oscillator (1)

PLL synthesizing oscillator (2)

PLL synthesizing oscillator (3)

files/Recopilacion Web/Varios/PLL Tutorial.pdf

4QD TEC Circuits Archive

Pulse Reading Logic Probe

4QD-TEC- Pulse Width Modulators

4QD-TEC- Pulse Width Position Servo

4QD-TEC- PWM speed control

4QD-TEC- Radio Control Interface

Remote Solar LED light

Resistor Color Code Tutorial

4QD-TEC- Resistor colour codes

Robots, Robot Wars

SCC2 10 Amp Solar Charge Controller

files/Recopilacion Web/Varios/Schmitt Trigger Appls.pdf

Self Powered Solar Box Furnace

Shavano Music Online - Introduction to Op-Amps - Part 1

Shavano Music Online - Introduction to Op-Amps - Part 2

4QD-TEC- Simple regulated power supply with overcurrent trip

SPC2 6 Amp Solar Power Center

4QD-TEC- Stepper Motor as Encoder

Stereo Test Tone Generator

Switching regulator (2)

4QD-TEC- Switching Solenoid Driver

4QD-TEC- Tacho generator amplifier

4QD-TEC- MOSFET current sensing

Temperature Controlled NICD Charger

Testing a MosFet, Testing

Testing a SCR Testing

Testing a Triac

Testing a UJT Testing

4QD-TEC- Touch operated switches

TV tuner

4QD-TEC- Ultrasonics- remote control and Intruder detector

files/Recopilacion Web/Varios/USB in a Nutshell.pdf

4QD-TEC- Voltage controlled amplifier circuit

4QD-TEC- Waveform generator circuits