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  • Introduction to the Two-Wire Transmitter and the 4-20mA Current Loop (.pdf)
    zero" and an alarm condition. Some installations still use pneumatic control today. Modern I/P converters (current-to-pressure transducers) are available to convert the 4-20mA control loops to common pneumatic ranges, such as 3-15psi, 1-18psi, 3-27psi, and 6-30psi.
  • Trimming The Output Voltage Of DC/DC Converters
    /A) or OPAM, must be used for adjustment, the circuit in Figure 2 can be used. The circuit in Figure 1 is a variable current source that can be used to perform a ±10% adjustment of the converter's output voltage. The auxiliary output is preloaded by RLF and an overvoltage zener diode to prevent any
  • Application Note: Output Inductor Selection for the AAT115X Series Buck Converter
    , this value guarantees that there is sufficient internal slope compensation which assures stability of the current mode loop for applications requiring greater than 50% duty cycle. With the inductor ripple current set to 40% of the rated current at the maximum input voltage, the converter is guaranteed
  • Simple Synchronous Buck Converter Design - MCP1612
    are internal and switching is 1.4 MHz, the inductor, input and output capacitor size is minimized. The output voltage is set by using a simple resistor divider, with a high-bandwidth loop being accomplished by a series resistor capacitor to ground. Efficiencies of 90% and a typical shutdown current
  • Servo On A Chip
    or velocity sensor. The output of this loop is a command for an increase or decrease in motor torque. This command signal feeds to the inner current loop of the system. The current loop generates signals for the power converter which supplies currents to the motor that produce the desired output torque
  • Adjustable Switching Voltage Regulators
    output voltage charging high output capacitors, the circuits in Figures 3 and 4 can be used. Figure 5 shows the turn on delay and soft start time generated with the external networks of Figures 3 and 4. In Figure 6, a current output digital-to-analog (D/A) converter is used to drive the output pin (Pin 9
  • Sensorless BLDC Control with Back-EMF Filtering Using a Majority Function
    and high efficiency. Increasingly, it is also This application note describes a sensorless Brushless used in automotive applications as a part of strategy to Direct Current (BLDC) motor control algorithm that is eliminate belts and hydraulic systems, to provide (R) Digital Signal Controllerimplemented

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