Parameters - INDEPENDENT mode

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Parameters - GROUPED mode

Parameters - DIFFERENTIAL mode

Calibration Tab

GROUP 1 MODE (AMP 1-2-3)

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GROUP 2 MODE (AMP 4-5-6)

The parameters selected in this section define the operating mode of each amplifier group, where Group 1 consists of the first three amplifier outputs (L1, L2, L3) and Group 2 consists of the last three (L4, L5, L6).

INDEPENDENT - In this mode each amplifier output operates independently; each can be enabled/disabled individually and given a reference voltage which it will output with respect to its associated neutral terminal (e.g., L1 to N1, L2 to N2, etc.).

Grouped Operation - An optional “Grouped Operation” checkbox configures all outputs within the respective group to be enabled/disabled together, facilitating simpler control specifically for three-phase operation.

DIFFERENTIAL - In this mode the first two amplifier outputs of each corresponding Group (L1 & L2 for Group 1, or L4 & L5 for Group 2) operate together to generate a differential voltage, using the enable/disable and reference commands for the first amplifier output within the group. For example, in differential mode, a reference of 100V_DC given to Amp 1 will produce an output voltage of 100V_DC measured across amplifier outputs L1 & L2.

Application Mode

Obsolete/Legacy parameter - Selection has no effect as the OP8110 always operates in ‘Closed-Loop’ mode.

AMPLIFIER <#> ENABLE MODE

These parameters define whether the enabling/disabling command for the respective amplifier output is obtained from the corresponding input port of the communication block or from the Graphical User Interface (GUI) block in the console (OP8110-6 Console GUI).

GUI OUTPUT ENABLE - With this selected, the respective amplifier output is enabled/disabled from the Console GUI block.

MODEL OUTPUT ENABLE - With this selected, the respective amplifier output is enabled/disabled from the corresponding “Amp <#> Enable” input port of the communication block.

Bypass Output Inductance

Checking this box will bypass the 75µH output inductance of the respective amplifier output, and conversely, unchecking it will insert this inductance. This box should always be unchecked (i.e., inductance inserted) when connecting to a capacitive load or an active load. 

Amplifier <#> Gain Correction 

This gain correction factor is multiplied to the reference signal of the respective output, which can be used to adjust/calibrate its linear voltage gain. The default value for the gain correction factor is 1. 

Amplifier <#> Offset Correction 

This offset correction factor is added to the reference signal of the respective output, which can be used to adjust/calibrate its offset bias. The default value for the offset correction factor is 0. 

GUI In

This input is to be connected to the output of the OP8110 Console GUI block to receive the associated GUI control signals.

Amp <#> Enable

These inputs enable/disable the respective amplifier output when “MODEL OUTPUT ENABLE” is selected for AMPLIFIER <#> ENABLE MODE. These inputs are active high.

Amp <#> Vref

These inputs obtain the voltage references for the respective amplifier outputs. Each reference value directly corresponds to the generated voltage of the amplifier output (with respect to the respective neutral). If the respective amplifier group operates in DIFFERENTIAL mode, only the reference for the first output of the group is used which defines the differential voltage between the first & second outputs (i.e., Group 1 uses the Amp 1 reference for the voltage across L1 & L2, while Group 2 uses the Amp 4 reference for the voltage across L4 & L5).

For details pertaining to the possible voltage reference range in each mode please consult the specifications listed in OP8110 4Q Power Amplifier.

SFP to OpInput

This input is to be connected to an OpInput block to establish communication with the OP8110 (the label “SFP00in” denotes the communication channel for the first OP8110 unit, “SFP01in” for the second unit, etc.). The process of mapping the amplifier bitstream I/O with the model I/O tags is provided in Simulator SFP Communication Setup.

GUI Out

This port is to be connected to the input of the OP8110 Console GUI block to transmit the associated amplifier status signals.

Global Status

This port outputs the global status of the amplifier unit.

Amp <#> Status

These ports output the status of the respective amplifier output.

Amp <#> Measure 

These ports output the measurements of the respective amplifier output.

• Output voltage.

• Output current. 

• VFEM sensor port voltage.

• Input (DC) voltage.

SFP to OpOutput

This output is to be connected to an OpOutput block to establish communication with the OP8110 (the label “SFP00out” denotes the communication channel for the first OP8110 unit, “SFP01out” for the second unit, etc.). The process of mapping the amplifier bitstream I/O with the model I/O tags is provided in Simulator SFP Communication Setup.