Introduction
5
Multi-Level Pulse Option
In the Multi-Level Pulse mode, the BDS collects voltage and current information for user specified fundamental and
harmonic frequencies for up to four pulse levels starting at the rising edge of the sync pulse. The fundamental
frequencies are tracked to ensure peak signal measurements are captured during the pulse period.
Figure 3 Multi-Level Pulse Mode
When Multi-Level Pulse is selected for Standard Tracking Mode a number of options must be defined for proper
operation:
Number of States - This option is used to define the number of states (pulse levels) used during
each frame (Pulse Period).
Delay - A time delay, from the rising edge of the sync pulse, must be entered for each state, this
provides the receiver the information required to begin measurement of each state.
Duration - The length of time (pulse width) of each state must be defined, for each state. The dura
-
tion value provides the information the receiver needs to measure the full width of each state.
Number of Frames - If a state duration is less than approximately 25 µsec, entering the number of
frames (pulse periods) for a state, allows the receiver to “focus” on tracking a single state for the
selected number of frames to “lock” onto the frequency.
Pulse Period - The length of time (period) of the entire frame of multi-level states. This should
match the period of the external sync pulse.
Duration
Duration
State 4
Duration
Duration
Sync Event
External
Sync Pulse
(Sync to
Rising Edge)
State 3
State 2
State 1
State 1 Delay
State 2 Delay
State 3 Delay
State 4 Delay
One Frame
(Pulse Period)
