Circuits & Schematics: Design - 2

11. THD-Enhanced Bias Circuit Design Targets Class AB Buffers
    Circuits Analogue Design Texas Instruments OPA2134
    .. Demchenko Electronic Design Bias circuits for class AB buffers (Fig. 1a) can take several forms. One alternative (not necessarily the ...
    21-02-2019

12. Design of an Adjustable Voltage Output Using a Push-Button Digital Potentiometer
    Circuits Supply Analog Devices AD5116 ADCMP371 ADP121
    .. maximum and minimum switching frequencies and the operating voltage range of the AD5116 should be taken into account in the design of this filter. For the circuit shown in Figure 2, the switching frequency is in the range of about 1.8 Hz to ...
    27-08-2020

13. Design a visible optical link for RS-232C communications
    Circuits Interfaces ON Semiconductor MC1488 MC1489
    .. design in Figure 1 is a visible optical link for those who need to see the transmitted data. An isolation figure of ...
    17-05-2021
14. Battery automatic power-off has simpler design
    Circuits Supply onsemi MC14093
    .. previous Design Idea describes a simple way to automatically turn off a battery after a preset on period to save battery life ...
    24-11-2021
15. 1-IC design monitors ajar doors
    Circuits Automation Beginners Texas Instruments CD4011B
    .. has the habit of not completely closing a drawer or perhaps the food freezer’s door you’ll appreciate this design. It senses an ajar door and, if the situation isn’t corrected within 20 sec, sounds a beeping alarm. ...
    06-09-2023
16. Using an inductor to improve an existing design
    Circuits Supply Analog Devices ADR444
    Here is the circuit in Figure 1 from a previous DI ( Ref. 1 ): Figure 1. Simple local low-noise voltage converter that can be used when a simple negative supply of low voltage is required. It is simple, and its efficiency can be improved by a very ...
    31-01-2024
17. Low-noise ac amplifier has digital control of gain and bandwidth
    Circuits Analogue Design Audio Analog Devices LT1884 LTC6910-1
    .. useful input-signal spectrum. The optimum combination of an amplifier's gain and bandwidth is the goal of a low-noise design. In a data-acquisition system, digital control of gain and bandwidth provides dynamic adjustment to ...
    05-09-2020
18. Build a charge pump with ultralow quiescent current
    Circuits Supply Maxim MAX981 MAX4685
    .. pump. Until off-the-shelf options are available, it provides an alternative for designers seeking to implement a low-cost design without the use of inductors. Materials on the topic Datasheet Maxim MAX981 Datasheet Maxim MAX4685
    22-11-2020
19. Discrete LED Color Organ
    Circuits Light Music
    .. newer type high intensity LEDs (3000 - 5000mcd) were used along with a very simple discrete transistor drive circuit. The design goals included small size and excellent portability, as well as long battery life. To begin, the required ...
    13-11-2008
20. Novel circuit isolates temperature sensor from its host
    Circuits Measurement Microcontrollers Usage Maxim MAX845 MAX6576
    .. than 0.1 K. The output at Q 1 ’s collector can sink several milliamperes at a voltage excursion of 0 to 5 V. This design can accommodate temperature-to-frequency converters and other types of temperature sensors. References MAX845 ...
    23-06-2020

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