Circuits & Schematics: supply - 3

21. Switch Mode Power Supply +5V
    Circuits Supply Power National Semiconductor LM2671 LM2674
    .. Switch Mode Power Supply circuit use the IC from National Semiconductor has been producing and designing ICs for use in switch-mode ...
    Jan 6, 2011

22. Power Supply Monitor for TTL
    Circuits Beginners Supply Power Linear Technology LTC1042
    .. simple TTL power supply monitor circuit monitors the 5-volt level TTL power line and gives a signal whether the supply voltage is ...
    Feb 24, 2011

23. Delay Circuitry Controls Supply-Voltage Startup Sequence
    John Betten
    Circuits Supply Vishay SI2308DS Si2337DS
    .. some ICs, supply voltages should be applied in a particular sequence. One example is the subscriber line interface circuit ...
    Dec 13, 2021
24. Circuit Combines Power Supply and Audio Amplifier
    Susanne Nell
    Circuits Audio Supply LM317
    .. is a low-cost door-opening system with speech input. The circuit uses only one IC, the well-known LM317 , a low-cost power-supply regulator. Using this chip, you can modulate the adjustment-pin input with the audio signal from an electret ...
    Apr 4, 2016
25. Offline supply drives LEDs
    T A Babu
    Circuits Light Power
    .. ac-mains voltage drops during its cycle. The circuit in Figure 1 lets you use an inductor-less, switching, offline power supply as an LED driver for emergency-exit signs and neon-light replacements. The design uses off-the-shelf ...
    May 12, 2011
26. Minimize Noise in Power-Supply Measurements
    John S Lo Giudice
    Circuits Measurement
    .. socket or a vertical socket, similar to those in Figure 1. Solder the center leg of the socket to the output of the power supply and solder the other leg to the power-supply return. Connect a 0.1-uF surface-mount, stacked ceramic ...
    Mar 12, 2012
27. 0.05 µV/°C chopped amplifier requires only 5 µA supply current
    Jim Williams
    Circuits Amplifiers Analog Devices LT1495 LTC1440
    .. 1 shows a chopped amplifier that requires only 5.5 µA supply current. Offset Voltage is 5 µV, with 0.05 µV/ C drift. A gain exceeding 10 8 affords high ...
    Dec 15, 2023
28. Double the protection of a laser driver using a 1V power supply
    Circuits Light Power
    Tai-Shan Liao, National Applied Research Laboratories, Instrument Technology Research Center, Hsinchu, Taiwan EDN An excessive level of light from a laser pointer, even if only for a short duration, can be harmful if it enters the human eye either ...
    Dec 29, 2013
29. Derive an efficient dual-rail power supply from USB
    Circuits Power
    .. O Ocaya EDN When designing low-power USB circuits that require power-supply voltages other than 5 V, you must decide whether to use a separate battery or a physically small mains-based ...
    Mar 2, 2014
30. Additions Boost Fault-Protected Current Limiter Precision At Higher Supply Voltages
    Anthony Smith
    Circuits
    .. previous current limiter works well at low supply voltages but lacks precision at supply voltages above 10 V. This improved version reacts quickly to protect ...
    Jul 2, 2014

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