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This circuit can be programmed for step up, step down, positive, negative, voltage and current regulation. Robert Frostholm 51/2 February 1980 Not just another digital clock [2] 5 + 1 ⁄ 2-inch high single-digit LED readout makes this clock unique. John D. Warobiew 51/2 February 1980 Automotive burglar alarm [3] Build it for less than $20.
Clock signal and legend. In electronics and especially synchronous digital circuits, a clock signal (historically also known as logic beat) [1] is an electronic logic signal (voltage or current) which oscillates between a high and a low state at a constant frequency and is used like a metronome to synchronize actions of digital circuits.
A timing diagram can contain many rows, usually one of them being the clock. It is a tool commonly used in digital electronics, hardware debugging, and digital communications. Besides providing an overall description of the timing relationships, the digital timing diagram can help find and diagnose digital logic hazards.
Digital clocks typically use the 50 or 60 hertz oscillation of AC power or a 32,768 hertz crystal oscillator as in a quartz clock to keep time. Most digital clocks display the hour of the day in 24-hour format; in the United States and a few other countries, a commonly used hour sequence option is 12-hour format (with some indication of AM or PM).
Watchdog timers are implemented in various ways. Some electronic WDTs (e.g., Analog Devices MAX6324) use linear timing circuits that operate without a digital clock signal. Other electronic WDTs, and software WDTs, typically employ digital counters as timers and rely on a clock signal for proper operation.
The die from an Intel 8742, an 8-bit microcontroller that includes a CPU, 128 bytes of RAM, 2048 bytes of EPROM, and I/O "data" on current chip A circuit built on a printed circuit board (PCB) An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by ...
A clock generator is an electronic oscillator that produces a clock signal for use in synchronizing a circuit's operation. The output clock signal can range from a simple symmetrical square wave to more complex arrangements. The basic parts that all clock generators share are a resonant circuit and an amplifier. The resonant circuit is usually ...
Dual-loop is a method of electrical circuit termination used in electronic security applications, particularly modern intruder alarms. It is called 'dual-loop' because two circuits (alarm and anti-tamper) are combined into one using resistors. Its use became widespread in the early 21st century, replacing the basic closed-circuit system, mainly ...