电源转换效率（Power conversion efficiency）Power conversion efficiency The conversion efficiency is the ratio between the input power and the output power of the power supply: the power conversion efficiency = the instant power output of the power supply for the host / the instantaneous power of the...
Impedance Resistance to the flow of current in a circuit element, measured as a ratio of voltage across the element and current through the element. Interference The interaction between two waves. The signal wave can interact with other waves that it meets on the way to its destination. A res...
S-factor indirectly indicates the voltage transient that occurs upon the turn off of the diode. Low S-factor implies high transient overvoltage while high S-factor implies low oscillatory reverse voltage. The total power loss during turn off is the product of diode current and voltage during trr...
Over Voltage Protection (OVP) Over Current Protection (OCP) Short Circuit Protection 1.1 Hold on adjust/set output voltage When manufacturing switching power supplies, the first test step is to adjust output voltage to within a specified range. This is done first to ensure further specificati...
equals current, multiplied by voltage, multiplied by time W=UIT (universal formula) Electrical work equal to electric power multiplied by time W=PT Electrical work equals the charge multiplied by voltage W=QT Electrical work equal to the square of the current multiplied by the resistance ...
Current and voltage profile along a distribution feeder with/without a DER source considering that\({\mathrm{I}}_{\mathrm{DER}}>{\mathrm{I}}_{2}+{\mathrm{I}}_{3}\), considering that Loads are concentrated not distributed ones
The static power Ps comes from sub-threshold leakage current Isub and it equals to IsubSVmax, where S is a normalized speed and it can be expressed by S=ViVmax=fifmax [84]. Note that Vi and fi represents the voltage and frequency of the processor. The dynamic power Pd consists of ...
As a general rule of thumb, dt is selected such that it is 10 to 100 times smaller than the smallest time transient occurring in your simulation. For example, if the switching frequency equals 20kHz, the period equals 50μs. To have at least an accuracy of 1% in the dutycycle, time ...
The output voltage can now be operated by the R4 resistor solely. When the position of SPDT switch S2 is in 1, the highest output current can be accomplished having the two halves of T1 supplying current to the filter stage, in order to increase the overall current output 2 times more. ...
well. As a result, the feedback error amplifier and current amplifier generate more current into the base of the transistor Q1. This reduces the voltage drop VCEand hence brings back the VCCoutput voltage, so that VFBequals VREF. On the other hand, if the VCCoutput voltage goes up, in ...