A very few LEDs contain a constant-current device so they draw their rated current over a wide range of operating voltages.
32.
Up until 8-10 years ago ( 90 nm ), Vt ( MOS threshold voltage ) and operating voltage was scaling with process.
33.
However, because of the very high operating voltage and power, each pole contains two twelve pulse bridges in series at each end.
34.
During the 1970s, the increasing digitization of electronic circuits came with decreasing operating voltages, and increasing switching frequencies and ripple current loads.
35.
When the sparking rate exceeds the " set spark rate limit, " the automatic controllers limit the operating voltage of the field.
36.
There are three operating voltages for SIM cards :, and ( ISO / IEC 7816-3 classes A, B and C, respectively ).
37.
With each reduction the associated operating voltage must also be reduced in order to maintain the same basic operational characteristics of the transistors.
38.
This has the benefit of lowering the breakdown and operating voltage of the lamp, compared to other possible fill gases such as krypton.
39.
Once the over excitation is no longer required the power supply to the clutch or brake would return to its normal operating voltage.
40.
The voltage regulator uses this increased voltage to produce more DC current, and the cycle continues until the generator reaches full operating voltage.
