Description
4-quadrant power supplies or 4-quadrant
amplifiers are instruments that are capable to provide positive and
negative output voltages as well as positive and negative output
currents.
Laboratory power supplies are usually only single quadrant power
sources. They are only able to deliver power with one single
polarity, i.e. these instruments only work in one quadrant of the
output voltage/ current diagram. Common amplifiers deliver voltages
with both polarities, but are generally unable to absorb power
values in a range comparable to that which they are able to deliver.
They therefore mainly work as two-quadrant devices.
The TOE 7620 series of 4-quadrant power supplies is able to work as
a power sink as well as a power source with equal values of
delivered or absorbed power. Thus a TOE 7620 series power supply is
bipolar voltage and current source, and a current sink in one
instrument and can replace a combination of single components.
Frequent problems with the interaction of individual components and
unexpected oscillations now belong to the past.
Features
- Selectable input voltage range
- The input voltage range can be set to a range of ±5 V or ±10
V. Therefore no further external adaptation of the control
voltage is necessary.
- Variable DC offset
- The DC offest voltage at the output can be adjusted to any
value within the rated output voltage range. The external
control voltage will be amplified and superimposed to the DC
offset. This way the ripple voltage in an on-board supply
system can easily be simulated.
- Adjustable output impedance
- The output impedance is adjustable in the range from 0 to
0.5 Urated / Irated.
- Short-time load current
- All 4-quadrant power supplies of the TOE 7620 series can be
equipped with the TOE 7620/103 option to deliver three times
the rated current for approx. 3 ms.
- Output ON/OFF
- A convenient feature is the output switch-off which allows
immediate shut down of the output voltage and current when
in the “Output OFF“ position. Additionally the output will
be isolated!
Description
Power supplies for laboratory use are mostly
only power sources. They are only able to deliver power with one
single polarity, i.e. these instruments only work in one quadrant of
the output voltage/ current diagram. Common amplifiers deliver
voltages with both priorities, but are generally unable to absorb
power values in a range comparable to that which they are able to
deliver. They therefore mainly work as two-quadrant devices. TOE
7610 series of four-quadrant amplifiers is able to work as a power
sink as well as a power source with equal values of delivered or
absorbed power.
The TOE 7610 series is thus a voltage amplifier, bipolar voltage and
current source, and current sink in one instrument. Having to
combine different instruments, where problems frequently occur with
the coordination of individual components and the tendency to
oscillate, now belongs to the past.
Features
- Power Manager - A selectable Power
Manager enables the maximum output power Pmax. to also be
processed as a continuous sink power. Numerous setting
options of the 4-quadrant amplifier allow optimum connection
of the amplifier with the seriesconnected driving equipment,
whether this is a laboratory power supply, a calibrator, a
function generator or a signal source from a PC in the form
of a D/A converter card.
- Selectable input impedance - The input
impedance can be switched between 50 Ohm and 100 kOhm and
allows convenient selection of a function generator to be
controlled and a signal source in the form of a D/A card in
the PC without the need for external adaptation.
- Selectable input voltage range - The
adjustable input voltage range allows switching between an
input voltage of ±5 V or ±10 V. Therefore no further
external adaptation of the control voltage is
necessary.
- Variable DC offset
- Brief load current - All 4-quadrant
amplifiers of the TOE 7610 series can be equipped with the
TOE 7610/103 option. They are then able to deliver three
times the rated current for approx. 3 ms.
- Output ON/OFF - A convenient detail of
the functionality is the output switch-off which allows
immediate switching-off of the voltage and current when in
the “Output OFF“ position.
Special features
- 150 W source and sink power
- Brief load current 3 x Irated - Analog
control input 0 to 5 V or 0 to 10 V
- ½ 19“ width, 3 HU parallel installation
possible- Slew (rise) rate approx. 6 V/μs to 25 V/μs
(depends on model)
- Sensing
- Output at front, optional at rear
- Optimally suitable for electrical noise
testing of components against vehicle electrics
ripple
