The output of the current controller will give the duty cycle of the gate pulse
and the direction to be run.
This pulse generator is named transmission gate pulse
In order to generate the gate pulse
for the upper switch of each phase, two modulation signals are needed.
At t4 the gate pulse
of the clamp switch Sc1 is implemented.
MATLAB/SIMULINK is used for the implementation of the active neutral point clamped multilevel inverter and gate pulse
generation is implemented using FPGA.
After applying the gate pulse
, the threshold voltage of the transistor was monitored by measuring the [I.sub.DS]-[V.sub.GS] characteristics.
The bottom end of the secondary echo pulse of the wave train was coincided to the gate pulse
. The internal circuit of pulse echo overlap system was designed with fully solid state version, which allowed immediate calculation of the ultrasonic wave velocity as given in the following equation.
In Figure 3(a), [V.sub.G] is set below [V.sub.th] and the gate pulse
is applied in such a way that the pulse peak is above [V.sub.th].
Reset pulse, gate pulse
and latch pulse conform to these three states of controller and represent the status of the controller and represent the status of the controller at any instant.
In the case of the MIR receiver detector, UWB and gate pulses
are summed algebraically to form the input to a peak detector, that is, the low amplitude UWB pulse and the high amplitude gate pulse
, which when summed, are above threshold for peak detection, but individually, are not.
The width of the drain pulse normally is smaller than the gate pulse
and is applied after the gate pulse
to prevent the flow of excessive drain current.