An inductor current-sensing circuit for measuring a current in an inductor includes (a) a first RC network coupled between a first terminal of the inductor and a reference voltage source; and (b) a second RC network coupled between a second terminal of the inductor and the reference voltage ...
It supports DCR current sensing with a single NTC thermistor for DCR temperature compensation or accurate resistor current sensing. It also has remote voltage sense, adjustable switching frequency, current monitor, OC/OV protection and power-good. Temperature monitor and thermal alert is available too...
Modeling and Autotuning of AVP Control with Inductor DCR Current Sensing A new equivalent circuit model is presented to predict the small-signal characteristic of current-mode control with DCR current sensing accurately, and a simple auto-tuning method is proposed to solve the issue of time constant...
DC-DC Optimizer Power Inductor Finder and Analyzer Coupled Inductor Finder and Analyzer Current Transformer Finder DCR @ Temperature Tool RF Inductor/Choke Finder and Analyzer Common Mode Choke Finder and Analyzer Wirewound Ferrite Bead Finder and Analyzer Reference Design Inductor Finder See All Design...
Figure 6. DC current sharing of 60A solution shown in Figure 5. Figure 7. Dynamic current sharing of 60A solution shown in Figure 5. Conclusion The LTC3875 delivers high efficiency with reliable current mode control, ultralow DCR sensing and strong integrated drivers in a 6mm × 6mm ...
Low ripple current DC-DC converter with 75 µH Inductor Figure 2 Real inductors have turn-to-turn winding capacitance that acts as if it were a parallel circuit element. The self-resonant frequency (SRF) of an inductor is the frequency at which the inductive reactance is equal in magnitude...
TRANSFORMERS Power conversion, capacitor charging, gate drive, PoE, current sensing, ultrasonic sensing and data-line isolation. EMI/POC/CHOKES EMI common mode chokes and wirewound ferrite beads minimize EMI and are ideal for noise suppression. Design...
The [26] uses the DCR current-sensing and hysteresis-voltage-controlled (HVC) circuits to speed up the transient response. However, the circuits are more complicated than this work. (G) From Table 3, this work has a better transient response than [19,24,25,26,27], probably because this...
•Controlled DCR for sensing circuits •Inductance range from 114nH to 180nH •Current range from 63 to 106 Amps Applications: •Multi-phase regulators •Voltage Regulator Modules (VRMs) •Desktop and server VRMs and EVRDs •Notebook regulators ...
[ ILIM_min + ΔIL] as conservative approach) DC Resistance: the lower the DCR, the lower the losses Inductor value: in order to keep the ratio IOUT/ΔIL low enough for proper sensing operation purpose, it is recommended to use a 4.7 µH inductor for 40mA mode (a 2.2 µH might...