Touch-Controlled Lamp Dimmer

This is a three-modes lamp dimmer circuit with touch control. This circuit can be used to control a lamp in 3 operation modes: dim, off, and bright. A NE555 timer is used to generate a one-second pulse when we touch the touch plate. The human body produces ambient ac fields which will be used to trigger the NE555. An input network is made from D1 and C1. Here is the schematic diagram of theĀ  circuit:

Three Way Touch Lamp circuit schematic diagram

This circuit also uses a 4017 decode divider/counter to drive one of 10 outputs. The resistor is connected in series with LED in the optocoupler which control the a triac. This triac will be connected to the load such as lamp, heater, or other passive devices. The brightness levels of this circuit is configurable up to 10. The resistor and IN914 should be needed for each output. U3 MOC3010 isolate the high voltage and the low voltage section, so you won’t be shocked by high voltage when touching the touch plate. [Circuit’s schematic diagram source:]

This entry was posted in Lighting and LED Circuit and tagged , , . Bookmark the permalink.,
Possibly Related to "Touch-Controlled Lamp Dimmer" Circuits

  • Direct Coupled On/Off Touch Switch
    The following touch switch circuit uses a CA3240 dual BiMOS op amp to sense small currents flowing between the contact points on a touch plate. Since this circuit is directly coupled with line voltage, a 1 M resistors in series … Continue reading →...
  • 220V Touch Switch
    This is a 220V Touch Switch circuit. This circuit is used as switch which turn off and turn on the the electronic device that is connected to the 220V home electrical installations. Here is the schematic diagram of the circuit: … Continue reading →...
  • Separate ON-OFF Touch Switch
    Providing a touch switch can be a cool way to make your circuit looks sophisticated. Moreover, providing separate touch pad for “on” and “off” function improve the safety, since touching one function doesn’t trigger opposite action to what we expect … Continue reading →...
  • Low Cost Precision Light Control / Dimmer
    Using a the controlled-half-plus-fixed-half-wave phase control method, this circuit can regulate an 860 a watt lamp load from half to full power. This circuit control the light output of the lamp from 30% to 100% because Half power applied to … Continue reading →...
  • High-Power Long-Life Compact Fluorescent Lamp / Tube lamp Controller
    We can use UBA2021 for 600 V lamp controller and half-bridge driver IC for high-power. The UBA2021 is a long-life CFL/TL applications. It’s equipped with over-power protection to delivers constant light output and improves safety. A driver circuit for an … Continue reading →...

Comments are closed.