Cardiac Science Powerheart AED G3 Plus 9390A Operator's And Service Manual page 68

Parameters
STAR biphasic waveform
The waveform generated by the AED is a Biphasic Truncated
Exponential waveform. The following is a graph of the waveform
voltage as a function of time when the AED is connected to a 50 Ohm
resistive load.
H igh Energy Waveform with 50 Ohm Resistive Load
2000.0
1500.0
1000.0
500.0
0.0
-500.0
-1000.0
-1500.0
-1.000
The Biphasic Truncated Exponential (BTE) waveform uses variable
energy. The actual energy delivered will vary with the patient's
impedance and the device will deliver a shock when impedance is
between 25-180 Ohms. Energy will be delivered at three different levels
referred to as ultra-low variable energy, low variable energy, and high
variable energy as shown in the waveform tables on the following pages.
Powerheart® AED G3 Plus 9390A and 9390E
0.000 1.000 2.000 3.000
H igh Variable Energy/50 ohms
4.000 5.000 6.000
TIME (ms)
7.000 8.000 9.000 10.000
70-00914-01 F
6-7