A good rule for determining inductance is to allow the peak-topeak ripple current to be approximately 30% of the maximum switch current limit. Also, make sure that the peak inductor current is below the maximum switch current limit. △I为peak-topeak ripple current Iout为 maximum switch current...
Switching controller with reduced inductor peak-to-peak ripple current variationA switching controller having an over voltage protection circuit is disclosed. The over voltage protection circuit detects whether the output voltage is higher than an over voltage threshold and turns on the rectifier when ...
1.Based on the analysis of the saber model simulative results,the mathematic expression ofinductor current rippleis derived and the conclusion is got that the current ripple relates to inductor value,switching frequency and integral time coefficient.分析了单周双极性控制下,在每个开关周期、不同开关时段...
The inductor may not perform properly when it operates outside of its peak current range. An inductor’s ripple current is typically designed to be within 30% to 40% of the IRMS.Figure 5 shows the inductor current waveform.Figure 5: Inductor Current Waveform...
A corresponding efficiency comparison is shown in Figure 6, where TLVR performance is challenged by the large current ripple peak to peak.As leakage of CL and especially NCL is typically much lower than TLVR value, it is also expected that current capability per phase i...
In buck-boost mode, inductor peak-to-peak current is much lower than that of SEPIC converters and traditional buck/boost con- verters. Figure 2 shows the inductor current and switch node waveforms. Low inductor ripple current and the use of synchronous rectifiers allow the LTC3780 to achieve ...
A high-efficiency boost dc-dc converter with adaptive peak-inductor-current (APIC) control method is proposed. Besides, a novel two-step startup procedure is also proposed and applied on the boost converter. The proposed integrated boost converter was fabricated by using a 0.18-μm 1P6M mixed...
Input Inductor In subject area: Engineering Featured on this page Chapters and Articles You might find these chapters and articles relevant to this topic. Boost–Buck Converter Steve Winder, in Power Supplies for LED Driving (Second Edition), 2017...
With the proposed freewheel switching control, this converter operates in a pseudo-continuous conduction mode (PCCM) and is capable of handling large load currents with a much smaller current ripple and peak inductor current, while retaining low cross regulation. It can also work in discontinuous ...
[ ILIM_min + ΔIL]) ΔIL = Inductor peak-to-peak ripple current VREG = max (VPOS, |VNEG|) + 200 mV (in 40mA mode — + 300 mV in 80mA mode — + 500 mV with TPS65132Sx with SYNC = HIGH) IOUT = IOUT_VPOS + | IOUT_VNEG| (IOUT_max being the maximum current ...