Yokogawa 7651 Programmable Supply

class pymeasure.instruments.yokogawa.Yokogawa7651(adapter, **kwargs)

Bases: pymeasure.instruments.instrument.Instrument

Represents the Yokogawa 7651 Programmable DC Source and provides a high-level for interacting with the instrument.

yoko = Yokogawa7651("GPIB::1")

yoko.apply_current()                # Sets up to source current
yoko.source_current_range = 10e-3   # Sets the current range to 10 mA
yoko.compliance_voltage = 10        # Sets the compliance voltage to 10 V
yoko.source_current = 0             # Sets the source current to 0 mA

yoko.enable_source()                # Enables the current output
yoko.ramp_to_current(5e-3)          # Ramps the current to 5 mA

yoko.shutdown()                     # Ramps the current to 0 mA and disables output
apply_current(max_current=0.001, complinance_voltage=1)

Configures the instrument to apply a source current, which can take optional parameters that defer to the source_current_range and compliance_voltage properties.

apply_voltage(max_voltage=1, complinance_current=0.01)

Configures the instrument to apply a source voltage, which can take optional parameters that defer to the source_voltage_range and compliance_current properties.

property compliance_current

A floating point property that sets the compliance current in Amps, which can take values from 5 to 120 mA.

property compliance_voltage

A floating point property that sets the compliance voltage in Volts, which can take values between 1 and 30 V.

disable_source()

Disables the source of current or voltage depending on the configuration of the instrument.

enable_source()

Enables the source of current or voltage depending on the configuration of the instrument.

property id

Returns the identification of the instrument

ramp_to_current(current, steps=25, duration=0.5)

Ramps the current to a value in Amps by traversing a linear spacing of current steps over a duration, defined in seconds.

Parameters
  • steps – A number of linear steps to traverse

  • duration – A time in seconds over which to ramp

ramp_to_voltage(voltage, steps=25, duration=0.5)

Ramps the voltage to a value in Volts by traversing a linear spacing of voltage steps over a duration, defined in seconds.

Parameters
  • steps – A number of linear steps to traverse

  • duration – A time in seconds over which to ramp

shutdown()

Shuts down the instrument, and ramps the current or voltage to zero before disabling the source.

property source_current

A floating point property that controls the source current in Amps, if that mode is active.

property source_current_range

A floating point property that sets the current voltage range in Amps, which can take values: 1 mA, 10 mA, and 100 mA. Currents are truncted to an appropriate value if needed.

property source_enabled

Reads a boolean value that is True if the source is enabled, determined by checking if the 5th bit of the OC flag is a binary 1.

property source_mode

A string property that controls the source mode, which can take the values ‘current’ or ‘voltage’. The convenience methods apply_current() and apply_voltage() can also be used.

property source_voltage

A floating point property that controls the source voltage in Volts, if that mode is active.

property source_voltage_range

A floating point property that sets the source voltage range in Volts, which can take values: 10 mV, 100 mV, 1 V, 10 V, and 30 V. Voltages are truncted to an appropriate value if needed.