
LM117HV/LM317HV 3-Terminal Adjustable Regulator (Rev. D)
... equal 1 μF of solid tantalum at high frequencies. Ceramic capacitors are also good at high frequencies, but some types have a large decrease in capacitance at frequencies around 0.5 MHz. For this reason, a 0.01-μF disc may seem to work better than a 0.1-μF disc as a bypass. Although the LM317HV is s ...
... equal 1 μF of solid tantalum at high frequencies. Ceramic capacitors are also good at high frequencies, but some types have a large decrease in capacitance at frequencies around 0.5 MHz. For this reason, a 0.01-μF disc may seem to work better than a 0.1-μF disc as a bypass. Although the LM317HV is s ...
LTC1757A-1/LTC1757A-2 - Single/Dual Band RF Power Controllers.
... An autozero system is included to improve power programming accuracy over temperature. This section cancels internal offsets associated with the Schottky diode detector and control amplifier. External offsets associated with the DAC driving the PCTL pin are also cancelled. Offset drift due to temper ...
... An autozero system is included to improve power programming accuracy over temperature. This section cancels internal offsets associated with the Schottky diode detector and control amplifier. External offsets associated with the DAC driving the PCTL pin are also cancelled. Offset drift due to temper ...
a AN-369 APPLICATION NOTE
... not be left “floating.” If the thermocouple measuring junction is electrically isolated, then Pin 1 of the IC should be connected to Pin 4, the power supply common. In some applications, tying the thermocouple directly to common is not possible. A resistor from Pin 1 to common will satisfy the bias ...
... not be left “floating.” If the thermocouple measuring junction is electrically isolated, then Pin 1 of the IC should be connected to Pin 4, the power supply common. In some applications, tying the thermocouple directly to common is not possible. A resistor from Pin 1 to common will satisfy the bias ...
Negative feedback
Negative feedback occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.Whereas positive feedback tends to lead to instability via exponential growth, oscillation or chaotic behavior, negative feedback generally promotes stability. Negative feedback tends to promote a settling to equilibrium, and reduces the effects of perturbations. Negative feedback loops in which just the right amount of correction is applied with optimum timing can be very stable, accurate, and responsive.Negative feedback is widely used in mechanical and electronic engineering, but it also occurs naturally within living organisms, and can be seen in many other fields from chemistry and economics to physical systems such as the climate. General negative feedback systems are studied in control systems engineering.