.. from 5 V to 40 V. It uses current-mode control to improve response during voltage changes and operates at a fixed switching frequency of 180 kHz. The chip integrates a powerful N-channel MOSFET that can handle up to 5 A of switching ...
.. and R B , and the least significant PWM, can be eliminated, and all six inverters can be paralleled. The PWMs’ minimum frequency requirements shown are important because when those are met, the subsequent filter passes a ...
.. order of impact are the magnitude of the conductance of the R 3 + R 4 resistor string, U 1 ‘s falling loop gain with frequency, and M 1 ’s large R DS and small C DS . Still, the circuit built around the 400-V V DS -capable M ...
.. classic nonlinear analog function is the squaring circuit. It’s useful in power sensing, frequency multiplication, RMS computation, and many other odd jobs around the lab bench. Figure 1. The squaring ...
.. changing the supply voltage fed to a classic 4584 Schmitt trigger type oscillator, the oscillator frequency can be changed over a range of 50:1. A 74HCU04 inverter is used at the output of the 4584 to maintain a ...
.. is RM6 and DK106 is the controller chip. The inductance of the primary winding of the transformer is 2 mH and the switching frequency is 65 kHz. Output regulation is done through a Zener diode, and the controller chip does not need any ... .. Then put the ferrite cores in place (in the bobbin) and measure the inductance of the primary winding using an LCR meter. If you can set the measurement frequency on your LCR meter, the best frequency is 65 kHz (switching frequency ...
.. are stubborn things” (John Adams, et al). I added two 50-ohm outputs to the schematic of my published voltage-to-frequency converter (VFC) circuit [ 1 ] (Figure 1). Then, I designed a PCB, purchased the (mostly) surface-mount ...
.. audio content. In this project, I have introduced a compact stereo digital FM transmitter circuit that operates in the frequency range of 87 MHz to 108 MHz. The frequency can be adjusted using two tactile push-buttons, with a 0.1 ...
.. certain to adversely impact the spectacular ripple attenuation cited in Christopher Paul’s original article. Mid-frequency loop gain may also suffer from the heavier loading on C2 and R2 imposed by the reduced R1C value. This ...
.. versus control current is more linear than that of the resistance. This is advantageous, for instance, for VCFs with a frequency response proportional to 1/RC. For music electronics applications, however, exponential control of the ...