PEL-3000E Programmable D.C. Electronic
Load
Description
GW Instek
launches new
PEL-3000E series programmable single-channel electronic load. In the
series, PEL-3031E provides 300W (1V~150V/60A) and PEL-3032E provides
300W(2.5V~500V/15A) current sink capability. Inherited from the
PEL-3000 series, PEL-3000E has an easy-to-read LCD panel and
user-friendly interface. This model features high speed and accurate
measurement capability for electronic component, battery, portable
charger and power products that require low to medium power
consumption.
The PEL-3000E series is designed for current sink operation starting
from 60mA and aims at measurement applications, including charger,
adapter, various power supply equipment, and portable charger.
The PEL-3000E has seven operating modes. Among them, four basic
operating modes are constant current, constant voltage, constant
resistance, and constant power. Three other combined operating modes
are constant current + constant voltage, constant resistance +
constant voltage, constant power + constant voltage. Users can
select operating modes based upon products' test requirements. For
C.C. mode, electronic load will sink a constant current according to
the set current value; for C.V. mode, electronic load will attempt
to sink sufficient current to control the source voltage to the
programmed value; for C.R. mode, electronic load will sink a current
linearly proportional to input voltage according to the set
resistance value; for C.P. mode, electronic load will initiate load
power sinking operation (load voltage x load current)in accordance
with the programmed power setting.
Description
GW Instek
launches new
PEL-3000E series programmable single-channel electronic load. In the
series, PEL-3031E provides 300W (1V~150V/60A) and PEL-3032E provides
300W(2.5V~500V/15A) current sink capability. Inherited from the
PEL-3000 series, PEL-3000E has an easy-to-read LCD panel and
user-friendly interface. This model features high speed and accurate
measurement capability for electronic component, battery, portable
charger and power products that require low to medium power
consumption.
The PEL-3000E series is designed for current sink operation starting
from 60mA and aims at measurement applications, including charger,
adapter, various power supply equipment, and portable charger.
The PEL-3000E has seven operating modes. Among them, four basic
operating modes are constant current, constant voltage, constant
resistance, and constant power. Three other combined operating modes
are constant current + constant voltage, constant resistance +
constant voltage, constant power + constant voltage. Users can
select operating modes based upon products' test requirements. For
C.C. mode, electronic load will sink a constant current according to
the set current value; for C.V. mode, electronic load will attempt
to sink sufficient current to control the source voltage to the
programmed value; for C.R. mode, electronic load will sink a current
linearly proportional to input voltage according to the set
resistance value; for C.P. mode, electronic load will initiate load
power sinking operation (load voltage x load current)in accordance
with the programmed power setting.
To meet the
requirements of different test conditions, the Static function is to
sink a constant current; the Dynamic function is to periodically
switch between two sink conditions, and the Sequence function is to
provide tests for more than two sink conditions. The sequence
function can be divided into Normal Sequence and Fast Sequence.
Normal Sequence is the most flexible mean of generating complex
sequences that can facilitate users to establish a set of changing
current sink conditions based upon different sinking conditions (CC,
CR, CV or CP mode) and time(adjustable range: 1ms to 999h 59min
59s). Fast sequence allows time resolution of 25us to be set for the
smallest step. Setting parameters for multiple steps can simulate
consecutive current changes of various real load conditions. For
instance, while using an electronic load to test a power-driven
tool's power supply, we can first obtain waveforms by an
oscilloscope and a current probe from the tool, and subsequently,
use the obtained waveforms to edit simulated current waveforms, via
electronic load's sequence function, to test the power-driven tool
and to analyze its operational status. The Soft Start function
allows users to determine the rise time of current sink that is to
decide the required time to reach electronic load's set current,
resistance or power value. Setting a proper rise time for Soft Start
is effective to counter output voltage fluctuation caused by DUT's
(power supply) transient output current. It is worth noting, General
DC loads do not have the soft start function.
When conducting high speed current sink operation, the inductance
effect on the cable connecting electronic load and DUT will lead to
transient voltage drop on electronic load's input terminal,
therefore, that will result in Voltage Non-monotonic increase.
PEL-3000E's soft start function not only allows output voltage to be
Monotonic increase, but also prevents inrush current and surge
voltage from happening on DUT. For instance, tests using a power
supply, LED and a DC load (activate the soft start function) can
prevent inrush current and surge voltage from causing damages on
LED.
The built-in BATT Test Automation of PEL-3000E provides battery
discharge applications with more flexible discharge stop setting as
well as rise and fall Slew Rate for discharge current settings. OCP,
OPP test Automation for DUT (ex. Power Supply), provide users with
high resolution measurement values to verify DUT's activation point.
Provide users with measurement results so as to help them determine
whether DUT's actual over protection activation point meets the
regulations. Other than that, PEL-3000E provides users with analog
control terminal to control PEL-3000E from external voltage,
external resistance and switch. Analog control terminal can also
monitor electronic load's status and display protective alarms.
Features
- 7 Operating Modes: CC, CV, CR, CP, CC+CV,
CR+CV, CP+CV
- Fast/ Normal Sequence Function
- Soft Start
- Battery discharge test
- OCP、OPP test Automation
- Max. Slew Rate: 2.5A/us
- Dynamic mode
- Protection: OVP, OCP, OPP, OTP, RVP,
UVP
- Remote Sense
- Integrate voltage, current and power
measurement functions
- External Voltage or Resistance Control
- Rear Panel BNC、Trigger IN/OUT
- Analog External Control
- USB/GPIB(Optional)
