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Last Updated
03/31/2019
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION. |
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ELECTRIC LIGHT BULB DIMMER x DIMMER SWITCH x LIGHT DIMMER xx ELECTRIC LIGHT BULB xx ELECTRIC LIGHTING CONTROLLER xx SWITCH How to install a dimmer switch. A computer-controlled light dimmer. Part 1. Design. A computer controlled light dimmer. Part 2. Implementation using a Heathkit ET-3400 microprocessor trainer. Nonlinearities in illumination. How computer-controlled light dimmers require a non-linear signal to achieve a linear dimming response. Mood lighting. How to install a dimmer switch. Speed or power control circuit for DC loads. Add a dimmer switch to your photographic enlarger to provide longer exposure times when working with thin negatives or making small prints. Build a lamp dimmer control for your photo enlarger. Low-voltage power controller (3- to 12-volts). Use it as a dimmer for low-power lamps or as a speed control for small DC motors. Est. cost: $35. Universal light dimmer. Build into any wall switch box. Handles up to 600 watts. Cannot be used with fluorescent lamps. Est. cost: $11 (kit). Simple light dimmer and motor speed control using a silicon-controlled rectifier (SCR). The theory of the SCR is also explained. In-a-socket dimmer. Replace 3-way switches with a full-wave dimmer built into an ordinary light bulb socket. Allows use of 150 watt bulbs instead of the more expensive 50-100-150 watt bulbs. Est. cost: $5. Light dimmer gradually changes a lamp's brightness (up or down) at sunrise or sunset. Handles up to 1000 watts load. AC and DC control circuits. Circuits based on the triac or silicone controlled rectifier as the power switching device. (1) AC light-dimming circuits. (2) Universal motor control. (3) DC power control. (4) DC power switching. Circuit for turning a 2-amp bulb on and off gradually is controlled by the charging and discharging of a capacitor. All-analog circuit is a modernized version of a dawn simulator (a device which takes up to 30 minutes to turn on a lamp and bring it up to full brightness). A circuit to interface the dawn simulator with a clock radio is also shown. An AC proportional voltage controller for your PC. Use it to control the voltage level of an appliance that uses 110-volt AC service. Connects to the parallel port of a PC. Applications can include light dimming, motor-speed control, heater control, etc. AC and DC lamp-dimmer circuits. Several approaches to dimming a lamp are compared. Sound-operated light controller circuits. Lamp brightness control. Diagram of a half-wave phase control circuit using a silicon controlled rectifier. Silicon controlled rectifier (SCR) lamp dimmer circuit. Est. cost: $4. A 500-watt photoflood dimmer. Mount a 600 watt light dimmer in a box with a fuse, pilot lamp and two outlets to make a portable voltage controller. Build Touch'N'Dim controller. A touch-controlled light dimmer circuit capable of handling up to 200 watts. How to install a dimmer switch. Tip: Three-way bulbs will not "buzz" when used with light dimmers. Circuit for a lamp has a 3-position switch (off, half-power, full-power). Light dimmer circuit demonstrates the application of both the diac and triac. Touch light-dimmer uses a novel integrated circuit and a triac that turns lamps on and off when you touch a wall plate instead of using the light switch. Further, the unit will dim or brighten lights. Est. cost: $35. Light dimmer circuit will handle up to 350 watts and requires no heat sink. Speedi-watt power controller can be used as an electronic speed control for electric drills or fans, as a power controller for electric blankets or soldering, as a lamp dimmer, etc. Suitable for loads up to 500 watts. Includes components for RFI suppression. How to install a dimmer switch. A look at special purpose light switches, including rocker type, lock type, dimmer, etc. Easy-to-build computer-controlled triac dimmer. Handles up to 200 watts. Use to control incandescent lights or motors. Light control box uses a double-pole, double-throw switch. Dim floodlights for focusing and then switch to full brilliance. A solid-state light dissolver. Controller smoothly dims or brightens lights automatically with the flip of a switch. Handles up to 300 watts. May also serve as motor speed control. Touchmaster. A touch-sensitive lamp controller that can be added to any lamp. Experimenting with the power MOSFET (MOS field-effect transistors). Includes circuits for a simple audio amplifier, linear lamp dimmer, pulse-driven light dimmer, lamp flasher, and timer circuits. How phase control works. Description of a full-wave phase-control circuit typically used in light dimmers and motor speed controllers. Photoflood dimmer made by installing a 600-watt dimmer and outlet in an outlet box equipped with an extension cord and plug. Est. cost: $6. A box containing four outlets, two switches and a rectifier allows you to switch photofloods to half-power while positioning the lamps. Photoflood light dimmer switch lets either half or full power line voltage through to lamps. Handles up to 3700 watts. Est. cost: $4 to $10. Flood-lamp unit controls up to four lamps with a full- and half-power switch for each lamp, and a master full- and half-power switch that will control all 4 lamps. Unit has a built in 20-amp fuse. Half-voltage switches extend life of photofloods. The Dymwatt, a full-wave motor speed control and light dimmer. Photoflood dimmer control. Lamp dimming circuit capable of handling up to 2.5 amperes on a continuous basis. Employs a Triac switch. A manual and automatic light dimmer enables you to fade out a table lamp and brings it on again, either manually or automatically (via a timer). Unit will control lamps up to 500 watts. Est. cost: $15. Home lighting dimmer will dim lights to any pre-set level automatically, at an almost unnoticeably slow rate under the control of a timer. Est. cost: $15. AC power control circuit can handle 50 to 100 watts and serve as light dimmer or speed control. Uses two medium power transistors. Inexpensive lamp dimmer circuit has only three postions (full, half, off). Tip on eliminating radio interference caused by triac light dimmers. Build Dynadim II. Deluxe home-lighting control features an automatic dim-to-off mode. Lights can be automatically dimmed or turned off in a variable length of time up to 40 minutes. Fits into a standard junction or switch box. Est. cost: $25. How to overcome radio frequency interference caused by light dimmers. Control the speed of small dc motors, the brightness of a lamp, or otherwise drop a dc voltage by using pulse-width modulation. A simple, straightforward linear lamp dimmer circuit. Circuit for eliminating the hum in an AM radio caused by a light dimmer. Simple lamp dimmer circuit requires only a three-way rotary switch and a single diode. Touch-control dimmer switch is built into the base of a table lamp. Eliminates the need for 3-way bulbs. Electronic novelty light. Learn more about how light dimmers and fluorescent lamps work with this project. Voltage regulator applications. (1) In-rush current limiter circuit keeps current at the rated operating level of the device to be protected. (2) Visible-light transmitter circuit. (3) Visible-light receiver circuit. (4) Using two common voltage regulators to vary both voltage and current. (5) Circuit to control a small DC motor or small lamp. Build a low-voltage (12-volt) power controller. Use it as a dimmer control for low-power lamps or as a speed control for small DC motors. Handles up to 16 amps. Est cost: $35. Circuit for an electronic lamp-dimmer circuit that won't produce radio interference. Build a soft switch. This dimmer-style switch box (into which you plug a table or floor lamp) gradually turns the lamp on or off over a period that can be varied from two seconds to one hour. Est. cost: $30 (kit). Flood control gives half light or full. Protect light dimmer switches from power surges with a Thyrector. Photoflood dimmer control made from ordinary household dimmer switches. Build this portable light-control unit. It consists of a duplex outlet controlled by a dimmer switch. Installing a dimmer switch in place of an existing wall switch. Installing a fluorescent-light dimmer switch. Light control box can dim floodlights totaling up to 1200 watts using two dimmer switches. Est. cost: $18. How to install light dimmers. Circuit for a sound-activated light dimmer. Electronic light dimmer circuit incorporates the LS7237 monolithic PMOS touch-sensitive light dimmer and switch from LSI Computer Systems. Tips on preventing electronic light dimmers from interfering with reception on AM radios. Sunrise to sunset simulator will turn on a lamp slowly to simulate the sun rising, and then slowly dim the light to simulate sunset. Special-effect lighting-control circuit alternately increases the brightness of one bulb while decreasing the brightness of another. AC power control. Using triacs as a line-operated AC power switch, logic-controlled AC power switch, and phase-controlled dimmer switch. Ten-level dimmer switch or electric motor speed controller circuit uses a single IC chip, a triac and a few other ordinary components. "Photo-trol" uses a full-wave silicon-controlled rectifier to balance two floodlights from very dim to maximum brilliance. Est. cost: $18. A 300-watt dimmer circuit will automatically reduce power from full to a pre-set level at the flip of a switch. Process takes about 8 seconds. Ideas for dimming lights for home movie showing. Devices will also slowly return to normal power and may be operated manually. How to install a light dimmer. Tip: Decorative light dimmer knobs are made from brass drawer pulls. Tip: How to stop light bulbs from buzzing when controlled by a dimmer switch. | |||||||||
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