Motor and general control schematics

· Bridge head

· PWM motor controller

· Transistor relay driver

· Latching relay driver

· Relay delay circuit

· Touch switch

· Low voltage DC motor speed controller

· Flashing neon christmas lights

· Three input first response monitor

· Switch-on delay circuit

· Electronic thermostat

· LM3911 temperature controller

· Programmable light-activated relay

· Light activated relay

· Simple 10 Stage Control Box

· Simple PWM circuit

· H Bridge Motor Control Circuits

· Motor speed controllers

· Ceiling fan speed control

· Delayed off light switch

· Deoderizer fan timer

· Electronic Thermostat Relay Circuit

· Interfacing 5 volt CMOS to 12 volt loads

· Light Activated Relay

· CMOS Toggle Flip Flop With Relay(CD4013)

· 555 Timer Monostable Circuit Using Pushbutton

· Dual Channel Servo Pulse to H-Bridge Interface

· Current loop interface

· Switching solenoid driver

· Modular relay system

· Light/dark detector

· Pulse Width Modulation DC Motor Control

· Stepper motor controller

· Touch switch

· Pump controller

· DTMF controlled switch

· H-Bridge motor controller (5 amps, 100 watts)

· Dual Channel Servo Pulse to H-Bridge Interface

· Servo pulse to PWM converter

· 12V Sump Pump Control

· Rolling code 4-channel UHF remote control

· DC Motor Speed Controller

· 3 Phase Brushless DC Motor Xtal Based Controller

· DC motor controller

· Garden moisture controller

· Overload Voltage Protection with Automatic Reset

· Pulse Width Modulator

· Pulse Width Modulator Motor Speed Control

· Pushbutton one-shot and latch (PDF)

· Charge coupled bi-directional power MOSFET relay (PDF)

· Finger touch activated switch (PDF)

· Machine vibration triggers hour meter (PDF)

· Solid state relay (PDF)

· Line-powered Xenon flash transmitter (PDF)

· 9V Xenon photoflash controller (PDF)

· AC switching with TRIAC from TTL

· Control 120VAC relay with TTL

· Driving a relay with a CPU

· Power-line Appliance Controller

· DC Motor Constant Speed Control

· Simple Switched Servo Driver

· Combination-controlled, fully customizable RF remote control

· Thermoelectic controller (scriptable thermometer)

· Stepper motor positioner

· Stepper motor driver

· Thermostat

· Frequency switch

· PIC16F84 RF remote controller

· H-Bridge shematic

· DS1821 programmable thermostat

· SN754410 Dual Motor Driver Board

· Hot Water Tank Indicator

· Temperature monitor

· Cold activated switch

· Voltage comparator switch

· Dark activated switch

· DC Push Button Motor Control Circuit

· Light detector

· DC Motor Reversing Circuit

· Sound operated switch

· LDR light/dark activated relay switch

· Touch Switches

· 6090 digital decoder schematics

· Assorted relay control circuits

· Adjustable Voltage motor controller

· Serial servo controller

· DC Motor-Driver H-Bridge Circuit

· Furnace fan speed controller

· Remote two-wire stepper motor positioner

· Drill shaft speed monitor

· PWM Motor Speed Controller / DC Light Dimmer

· Constant Temperature Circuit

· PWM DC Motor Speed Control

· Solenoid starter

· CO2 controller for planted tanks

· Light activated relay

· Voice activated switch - MC2830

· Delayed shutter control for Kodak DC-20

· Gasoline generator automatic throttle controller

· Block power switching module

· MOSFET H-BRIDGE schematic and theory