Circuits & Schematics: -Wire Barometer 5/10 Volt Design vrs - 3

21. Motor controller uses fleapower
    Anthony Smith
    Circuits Supply Power Texas Instruments CD4001B CD4013B
    .. a low-cost, micropower, latching motor controller that uses current sensing rather than switches to stop the motor. The design is optimized for a supply voltage of 3 to 9 V, making it well-suited to battery-powered applications. To ...
    Oct 15, 2025

22. Circuit forms ideal diode function
    David A. Johnson
    Circuits Bad Prescriptions Supply Texas Instruments TLV2401
    .. circuit uses a low power op Amp and a p-channel FET to form a diode function with a very low 0.05 volt voltage drop. With the selected FET, the circuit can handle up to 2 Amps of current. Higher currents are possible ...
    Oct 14, 2025

23. Buck regulator and two inductors make dual-polarity converter
    Keith Szolusha
    Circuits Supply Analog Devices LT1956
    .. solution and has no component measuring more than 3 mm high. The low profile and low board real estate that this design requires are almost impossible to match using a flyback design or a similar dual-output SEPIC design using a ...
    Oct 8, 2025
24. Drive any electronic clock with a high-precision 10-MHz reference
    Gavin Watkins
    Circuits Oscillators Beginners Digital Texas Instruments SN74HC00 SN74HC390
    .. for its reference. As anticipated, its display shows that the average output frequency is the 32.768 kHz specified by the design. The divider circuit’s output pulse train was also recorded on a Keysight DSO-X 1102G oscilloscope as ...
    Oct 7, 2025
25. Improve PWM controller-induced ripple in voltage regulators
    Christopher Paul
    Circuits Supply Toshiba CUS10S30
    .. incorporate PWM control of the output voltage requires some thought, and both Stephen Woodward and I have presented several Design Ideas (DIs) that address this. I’ve suggested disconnecting R G from ground and driving it from a ...
    Oct 6, 2025
26. Circuit controls ratiometric or simultaneous power-up of multiple rails
    Dirk Gehrke
    Circuits Supply Texas Instruments TPS54310 TPS54610
    .. the resistor-ratio change, IC 1 ’s output voltage ramps up to its final I/O-voltage value of 3.3 V. The MOSFET this design uses has an on-resistance of roughly 10 Ω. This figure might sound high, but, because of the ...
    Oct 6, 2025
27. PWM buck regulator interface generalized design equations
    Stephen Woodward
    Circuits Supply XLSemi XL4016
    .. while back, I published the Design Idea (DI) “Simple PWM interface can program regulators for V OUT V SENSE ” ( Ref. 1 )It showed ...
    Sep 24, 2025
28. Fake contacts, bounced to order
    Nick Cornford
    Circuits Measurement Microcontrollers Usage Texas Instruments CD74HC132 CD74HC4520
    .. recent Design Ideas ( Ref, 1 ) have involved button-pushing to control power. Some may have been more resistant to ...
    Sep 22, 2025
29. Positive analog feedback linearizes 4 to 20 mA PRTD transmitter
    Stephen Woodward
    Circuits Analogue Design Measurement Interfaces Texas Instruments LM10
    .. ideally be in a TO-220 or similar package if V LOOP 15 V. References Woodward, Stephen. Simple but accurate 4 to 20 mA two-wire transmitter for PRTDs. Williams, Jim. Signal Conditioning for Platinum Temperature Transducers. Materials on the ...
    .. recently published a simple design ( Ref. 1 ) for a platinum resistance detector (PRTD) 4 to 20 mA transmitter circuit, illustrated in Figure 1. ...
    Sep 14, 2025
30. Build automatic transfer switch (ATS) with simple analog electronics
    T.K. Hareendran
    Circuits Supply Texas Instruments NE555P
    .. or sketchy low-end options, this post is for you. The tried-and-true preliminary schematic In Figure 2 shows you how to design and build your own ATS using a handful of analog components you may already have in your parts bin. Figure 2. ...
    Sep 8, 2025

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