Circuits & Schematics - 10

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  1. Circuits Interfaces Supply Maxim MAX4173 MAX4238 MAX6129
    A USB port offers a handy source of 5 V power for auxiliary devices. A USB port not only supplies power to a microcontroller and other essential circuitry, but also provides enough extra current head room to charge a small battery or supercapacitor ...
    02-06-2022
  2. Although rechargeable batteries offer many advantages, they can suffer damage and shortened service lives if they're fully drained of their charge. The circuit in Figure 1 shuts off a battery-powered appliance in this instance, an LED ...
    30-05-2022
China PCB Prototype and Fabrication Manufacturer
  1. The circuit in Figure 1 is suited for inductive sources such as a dynamic microphone, transformer or inductance sensor/pick up. Figure 1. A simple amplifier circuit suited for inductive sources such as a dynamic microphone, transformer or ...
    26-05-2022
  2. The circuit in Figure 1 allows you to convert capacitance into a pulse train by using a constant current source and a linear monostable formed by two NAND-gate chips ( 74HC132 ). The circuit also provides two pulses to control external counter ...
    26-05-2022
  1. An audio volume-unit meter displays peak-related audio amplitudes to aid in accurately setting recording levels or for displaying an amplifier's operating conditions. A simple diode and capacitor network provides a classic volume-unit ...
    24-05-2022
  2. For VCRs, TVs, and other equipment that requires a standby mode, you must supply power to a µP when other components are asleep to receive and interpret any wake-up signal from the remote control or from the broadcasting company. These types ...
    24-05-2022
  3. A few years ago, manufacturers specified their white, but dim, LEDs for a maximum forward-current rating of 20 mA. Today's white LEDs deliver more light and thus must operate at ever-higher bias currents. Maintaining control of an LED's ...
    18-05-2022
  4. You can use a microcontroller that includes an ADC to design a two-wire-plus-ground keyboard interface. For example, you can use a resistive voltage divider to identify a pressed key (Reference 1). A microcontroller's integrated ADC typically ...
    16-05-2022
  5. Most inexpensive pushbutton switches, particularly pc-board-mounting and membrane types, have momentary action. Latching types are often larger and relatively expensive, and they frequently are unavailable in the style you'd like to use. You ...
    12-05-2022
  6. When you face the task of generating a regulated voltage that's higher than the available power-supply voltage, you may consider a boost regulator. Although a boost converter can in theory generate almost any voltage that's higher than its ...
    11-05-2022