• Create multicolored LEDs

    It is well-known that simultaneously mixing two primary-color light sources, such as red and green, creates a secondary color, such as yellow. This mixing process commonly occurs in tricolor ...

  • New LED efficacy 1A operation

    Japanese LED pioneer Nichia has claimed it has achieved a record luminous-efficacy figure in a device running at 1A drive current. A figure of 135 lm/W was reported for four 1x1-mm die connected ...

  • simple Light Switch Triac

    The series of light switches this time a little differently in terms of its voltage. The series of  light switches can work directly on the AC power network. Light switches are using the main ...

  • Flashing High Intensity LED 3rd Brake Light

    Flashing High Intensity LED 3rd Brake Light...[more] : This circuit to make a flashing3rd brake light assembly was designed to be easy to locate all the needed components and reasonably in ...

  • Dome Light Dimmer using Mic4680 Switching Regulator

    Dome Light Dimmer using Mic4680 Switching Regulator...[more] : simple circuit which outputs +5-Volt ...

  • CASCODE LIGHT RECEIVER CIRCUIT

    CASCODE LIGHT RECEIVER CIRCUIT...[more] (103) (40krvr3a) This page provides a detailed explanation of how the modified operates.  The cascode technique in conjunction with an inductive load ...

  • OPTICAL RFID TEST CIRCUIT

    OPTICAL RFID TEST CIRCUIT...[more] (87) (opiddemo) I designed this test the concept of using light techniques to send identification data instead of RF. A more detailed discussion on this scheme ...

  • LASER/LED LIGHT OUTPUT INTENSITY METER

    LASER/LED LIGHT OUTPUT INTENSITY METER...[more] (80) (laserpwr) This circuit uses a large 1cm X 1cm silicon PIN photo diode and a transimpedance amplifier to measure the light power output of ...

  • FET INPUT HIGH SPEED LIGHT DETECTOR

    FET INPUT HIGH SPEED LIGHT DETECTOR...[more] (69) (fetamp0) This circuit is yet another design that converts current from a PIN photo diode to a voltage. It has a bandwidth that extends beyond 50MHz. ...

  • 10MHz TO 20MHz LASER LIGHT DETECTOR

    10MHz TO 20MHz LASER LIGHT DETECTOR...[more] (61) (20mrvr2) This circuit was originally designed to detect laser light pulses for an optical Ethernet communications system. It has good ambient ...