Atmel AVR-based Constant Current Supply
... 1 bit = 3.0 volts/1023 = 2.9 mvolts or 0.0098 Amps per bit The complete PSPICE simulation model is shown in figure #1 (see next page). Simulation of the control algorithm for current feedback control is done with the use of analog behavioral models which represent the microcontroller based algorithm ...
... 1 bit = 3.0 volts/1023 = 2.9 mvolts or 0.0098 Amps per bit The complete PSPICE simulation model is shown in figure #1 (see next page). Simulation of the control algorithm for current feedback control is done with the use of analog behavioral models which represent the microcontroller based algorithm ...
AN-32 FET Circuit Applications
... The 2N3684 JFETs are used as Nixie tube drivers. Their Vp of 2-5 volts ideally matches DTL-TTL logic levels. Diodes are used to a a 50 volt prebias line to prevent breakdown of the JFETs. Since the 2N3684 is in a TO-72 (4 lead TO-18) package, none of the circuit voltages appear on the can. The JFET ...
... The 2N3684 JFETs are used as Nixie tube drivers. Their Vp of 2-5 volts ideally matches DTL-TTL logic levels. Diodes are used to a a 50 volt prebias line to prevent breakdown of the JFETs. Since the 2N3684 is in a TO-72 (4 lead TO-18) package, none of the circuit voltages appear on the can. The JFET ...
Nuance B18-10: Specification - Nuance Battery and Tube Guitar
... When the battery is fully charged the power LED will be green, turning to orange as the battery discharges. As the battery charge approaches the lowest safe limit, the LED colour will change to red. Further use, depleting the charge will cause the amplifier to turn off automatically to protect the b ...
... When the battery is fully charged the power LED will be green, turning to orange as the battery discharges. As the battery charge approaches the lowest safe limit, the LED colour will change to red. Further use, depleting the charge will cause the amplifier to turn off automatically to protect the b ...
LM111JAN Voltage Comparator (Rev. B)
... the output response will normally be fast and stable, assuming that the power supplies have been bypassed (with 0.1 μF disc capacitors), and that the output signal is routed well away from the inputs (pins 2 and 3) and also away from pins 5 and 6. However, when the input signal is a voltage ramp or ...
... the output response will normally be fast and stable, assuming that the power supplies have been bypassed (with 0.1 μF disc capacitors), and that the output signal is routed well away from the inputs (pins 2 and 3) and also away from pins 5 and 6. However, when the input signal is a voltage ramp or ...
TL494 Pulse-Width-Modulation Control Circuits (Rev. H)
... circuits. The error amplifiers exhibit a common-mode voltage range from –0.3 V to VCC – 2 V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input t ...
... circuits. The error amplifiers exhibit a common-mode voltage range from –0.3 V to VCC – 2 V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input t ...
a Wideband, High Output Current, Fast Settling Op Amp AD842*
... layout, avoids these problems by minimizing the effects of transistor isolation capacitance discharge and thermally induced shifts in circuit operating points. These problems do not occur even under high output current conditions. ...
... layout, avoids these problems by minimizing the effects of transistor isolation capacitance discharge and thermally induced shifts in circuit operating points. These problems do not occur even under high output current conditions. ...
Externally Compensated Op Amp
... External compensation is rather straightforward and for most op amp architectures, adequate performance of the feedback amplifier can be obtained if the external compensation capacitor is large enough. And, the size of this compensation capacitor can be determined after the op amp is fabricated and ...
... External compensation is rather straightforward and for most op amp architectures, adequate performance of the feedback amplifier can be obtained if the external compensation capacitor is large enough. And, the size of this compensation capacitor can be determined after the op amp is fabricated and ...
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.