In addition, a transformer operating at high frequency is inserted inside the DC-DC converter for isolation purposes and for voltage amplification
, if needed.
where [alpha] > 1 denotes the voltage amplification factor.
When the input power takes larger values, the difference between them becomes larger, due to the voltage amplification factor whose value change with different physical circuits and varied input powers.
Term Definition Common-Mode Input Impedance measured between either Impedance input terminal and ground Common-Mode Input Average of the voltages appearing Voltage (CMV) at the + and - inputs Common-Mode Rejection Ratio of the differential voltage Ratio (CMRR) amplification to the common-mode voltage amplification
Differential Input Impedance between the two Impedance ungrounded input terminals Differential Input Voltage difference between Voltage the two input terminals Table 1.
The other factors included transient voltage amplification
due to the natural frequency of the 11kV system at Jalan Bani Bu Ali being very close to the natural frequency of the 33kV system at Jalan Bani Bu Ali to which it is coupled.
A signal conditioning analog front end is containing a power driver with Ku=3 voltage amplification
and a voltage divider (1:3) to measure excitation voltage Uexc (to [+ or -]30V) is on the PZT circuit and shunt resistor R=70[OMEGA] for current sensing in a PZT (Iz signal) (Fig.
The Ampzilla 2000 uses two stages of differential voltage amplification
, instead of a single stage, to enhance the common-mode rejection ratio.
[V.sub.0] = voltage amplification
of the oscillator
For voltage amplification
, INA 110 KP instrumentation amplifier by Texas Instruments Company was preferred .