Carrier-Operated Relay

  
A shows a COR/CAS circuit for repeater use. CR1 is a silicon diode. 2 may be any relay with a 12-V coil (a long-life
Carrier-Operated Relay - schematic

reed relay is best). R2 sets the length of time that K2 remains closed after the input voltage disappears (hang time). shows a timer circuit. Values shown for Rl and CI should provide timing up to four minutes or so. CI should be a low-leakage capacitor; Ql is a silicon-controlled rectifier, ECG-5452 or equivalent. Kl may be any miniature relay with a 12-volt coil. The timer is reset when the supply voltage is momentarily interrupted. The switch must be in the reset position for the remote reset to work. This circuit operates from the detector output of a receiver. A delay circuit is included so that the relay stays closed for a time period after the carrier output from the receiver disappears.



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News


  • EE Herald
    applications... switched-mode (), LED lighting, filters, motor drives, and others. ST has also linked its eDesignSuite with the web-based smart transformer selector published by Wurth Elektronik. This enables power-supply designers to auto
     23 March 2017
  • Wall Street Times (press release)
    ST's eDesignSuite can assist accelerate design of many circuits and systems counting Switched-Mode (), LED lighting, filters, motor drives, and others. ST has now linked its eDesignSuite with the web-based Smart Transformer Selector ...
     22 March 2017
  • GlobeNewswire (press release)
    ...ST's eDesignSuite can help accelerate design of many circuits and systems including Switched-Mode (), LED lighting, filters, motor drives, and others. ST has now linked its eDesignSuite with the web-based Smart Transformer Selector 
     21 March 2017
  • EETE Power Management (registration)
    The increased safety margin and superior static and dynamic behavior of the new devices enable designers to improve the performance of a wide variety of products such as server power supplies, 3-phase switched-mode (), LED ...
     9 March 2017
  • Highland Mirror
    ... into multiple applications, including exciting alternatives in ighter and more-tunable light for general illumination, backlighting for more-vivid displays, optimized power management for high-current and variable-speed
     6 March 2017
  • Electronics360
    The TCM series can be designed into circuit boards on a large number of power electronic devices used for a wide range of applications, including and converters, inverters, battery management systems and chargers. The TCM ...
     4 March 2017
  • Electronics EETimes (registration)
    Electronics EETimes (registration) industryThe overall market for AC/DC and DC/DC commercial (C-), which excludes consumers and uninterruptible (UPS), is estimated to be worth between 22 and 25 billion US Dollars. The market has been s
     23 February 2017
  • EETE Power Management (registration)
    EETE Power Management (registration) Diodes has launched a high-performance power switcher with an integrated high-voltage (HV) start-up circuit for line-powered chargers and adaptors in the consumer and industrial markets. Designed as a pri
     23 February 2017
  • IHS Electronics360
    IHS Electronics360 The choice of the components used in switch-mode () is extremely important, as their impact on performance is often not considered. These components—such as resistors, capacitors and inductors—are called up
     19 May 2016

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