The current through inductor and/or line current in ‘A’-line is given below: (7)During the interval of (4π/3 − α) to (π/3 + α), only ‘AB’ thyristor conducts, and the ‘A’-line current can be written as (8)For the interval of ωt = (π/3 +...
in a circuit results in the current waveform being much smoother than the voltage waveform (see for exampleFig. 8.10), and that the bigger the inductance, the smoother the current. We need to recall that the voltage across an inductor is related to the current through it by the equation ...
DCR sensing is the method that senses current through a buck regulator’s output inductor. An inductor can be modeled as an ideal inductance and a series resistance called DCR (see Figure 6). This is typically the preferred method for high current (>20 A) rails. The addition of ...
In order to address this issue, the MAX77812 introduces the IVLIMthreshold. When the inductor current reaches the IPLIMthreshold, the high-side MOSFET turns off immediately, allowing the inductor current to discharge its energy through the low-side MOSFET. Until the inductor current falls down to...
Through space vector, three-phase instantaneous variables are now integrated into one space vector variable. More important, there is no need to consider the coupling flux linkages among phases. The MMF (flux) space vector is linearly related to the current space vector under the assumption of un...
An HB-LED power supply (Figure 1) is based on a fixed-frequency, highly integrated PWM switching converter (MAX5035) rated for output currents to 1A. A similar device (MAX5033) is rated to 500mA. These inductor-based buck-regulator ICs accurately control the current through an LED or seri...
through the same value of resistance for a time equal to one cycle of the alternating current. The chapter describes sinusoidal alternatingvoltage appliedto a pure resistor, pure inductor, and a capacitor. It also presents the power inalternating current circuits. The power at any instant during ...
Alternatively, the switch SW is open during the off-state. Thus, the inductor current flows through the load. If zero voltage drops in the diode is considered, and the capacitor is large enough for its voltage to stay constant, the evolution of iLis: VS − VC = L (diL/ dt...
As current increases above this value, the inductance value may fall sharply, depending on the core material and construction of the inductor. Operating an inductor in its saturated region causes the current through it to increase rapidly, causing potentially damaging levels of current to flow in ...
Enhanced Protection Against Negative Overload of VIN 7.1.2 Error Flag Delay In the event of a wire break or similar output fault, the current through the IS pin fails to satisfy the intended transfer function defined in Equation 1. The gate voltage VG falls as the XTR111 control loop ...