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  • Digital Current Loops and Direct PWM Control
    control has many well-known advantages. Setting the gains can be much easier,. a matter of changing numbers in registers instead of tweaking potentiometers. Gain settings can. very easily be copied from system to system. The data logging capabilities of a digital system. make it easy to store
  • Digital Signal Processing with the PIC16C74
    This application note describes the basic issues that need to be addressed in order to implement digital signal processing systems using the PIC16C74 and provides application code modules and examples for DTMF tone generation, a 60 Hz notch filter, and a simple PID compensator for control systems
  • Sensing Light with a Programmable Gain Amplifier
    reference. 300 mV from VSS. Once this is complete, you should. source should be low-impedance. A digital y-control ed. return to the maximum luminance condition to verify. variable voltage reference may be required because of. that the output of PGA is stil in its linear region, more. the various
  • A Digital Constant Current Power LED Driver
    AN1138 A Digital Constant Current Power LED Driver drive current for this type of LED would be 350 mA and Author: Stephen Bowling a typical forward voltage would be 3.5V. Secondly, we Microchip Technology Inc. will assume that the circuit input voltage is 12V. The inductor value will be chosen
  • Solving Thermal Measurement Problems Using The TC72 And TC77 Digital Silicon Temperature Sensors
    . that are a ratio of each other. In practice, the two. current source, as shown in Figure 6. This method to. currents are chosen to have a ratio of ten, which. eliminate the process variable IS is used because the. produces a voltage with a temperature coefficient of. magnitude of the currents can be control ed
  • Solving Thermal Measurement Problems Using The TC72 And TC77 Digital Silicon Temperature Sensors
    . eliminate the process variable IS is used because the. produces a voltage with a temperature coefficient of. magnitude of the currents can be control ed by the. approximately 200 µV/°C. The ∆VEB equation is. dimensions of a transistor. The current ratio circuit can. important because it contains
  • Application Note on Remote Control of UltraVolt HVPS
    programming of the UltraVolt HVPS can be done by applying a controlled voltage to the Remote Adjust Input terminal (pin 6). A typical application of voltage programming is the adjustment of the HVPS's output voltage through the use of a computer-controlled DAC (digital-to-analog converter). Although
  • Bridge Sensing with the MCP6S2X PGAs
    in this. the sensor are connected to the internal multiplexor of. system, the other channels of the MCP6S2X can be. the MCP6S26 PGA. The PGA is control ed digital y for. used for other sensors without an increase in signal. gain, as well as toggling between CH0 and CH1. The. conditioning hardware

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