Description

The DL3000 series is a cost-effective, economical programmable DC electronic load with a friendly human-machine interface and excellent performance specifications. It provides a variety of remote communication interfaces to meet diverse testing needs for design and testing. A wide range of solutions are available for a wide range of industries including automotive electronics and fuel cells.

30kHz Dynamic Mode

The advanced DL3000A models provide up to 5 A/us and 30 kHz frequency settings for transient mode testing. Emulate more dynamic real world power demands with this flexibility. That ultimately results in higher reliability and known behavior for batteries and power systems.

Dynamic Load Performance and Visualization

View the actual load performance on the front panel of the DL3000 in a static or transient mode. Optimize tests with customizable slew rates and frequency adjustments in Power, Voltage, Current, or Resistance modes.

3 Built in application setups for battery testing or Current or Power optimization

Quickly characterize your device with automated battery and power step tests without any programming

Free UltraLoad Software for remote operation and monitoring

Easily reconfigure or investigate the setup of the DL3000 remotely over USB or Ethernet with the free UltraLoad software. Record captured data over time and save long term test results to characterize and better understand your power system performance.

High resolution and accuracy on voltage and current load conditions

DL3000 Series provide specifications and capabilities that make measuring your power system under different conditions quick and easy. Monitor static conditions from the front panel or software interface and capture transient events with the built in waveform capture or by using an oscilloscope connected to the rear panel pulse shape outputs.

Description

The 63000 Series programmable DC electronic loads are reliable, precision instruments primarily designed to test switching power suppl ies, A/D power suppl ies, power electronic components, adapters, 3C batteries and chargers. Its maximum 350W rated power makes it suitable for testing numerous types of lower power devices.

The 63000 Series offers models in two operating voltages 150V models, with 250W and 350W power levels up to 60A in a single unit. Their compact and light weight design make these loads easy to move around which is ideal for R&D and design validation.

Each model of the 63000 Series has unique user-def ined waveform (UDW) funct ion capable of simulating real-world custom waveforms. In addition, a data storage function has been built in for saving and recalling up to 100 stored settings at any time. For automated testing, these save and recall functions can save a great deal of time.

The 63000 Series has 3 power ranges that can precisely measure the voltage and current in real time. Since short circuit testing is a critical test item, the 63000 provides short circuit simulation to effectively address application demands for power and automated testing.

The 63000 loads offer versatile front panel operation through the LCD and rotary knob. For remote operation, users are able to control each model via standard USB or optional Ethernet and GPIB interfaces. PWM fan speed control has been embedded to reduce ambient noise.

The 63000 has been equipped with over current, overpower, and over temperature protections as well as over voltage and polarity reverse alarms to improve product reliability. These DC loads are reliable, precision instruments ideal for design validation testing and automated test system integration.

Key Features

• Rated power: 250W, 350W
• Voltage range: 150V
• Current range: 60A max.
• CC, CR, CV & CP operation modes
• User-defined waveforms (UDW)
• CZ mode for turn on capacitive loadsimulation
• Real time power supply load transient response simulation
• User programmable 100 sequences via front panel
• High precision voltage & current measurement
• Voltage, current & Pmax measurement for OCP/OLP test
• Timing & discharging measurement for batteries
• Short circuit simulation
• Smart fan control
• Full protection: OC (adjustable), OT, OP (adjustable) protection & OV warning, polarity reverse alarm
• Standard USB, optional Ethernet and GPIB interfaces

Description

The 63200A series high power DC electronic loads are designed for testing a wide range of power conversion products including AC/DC and server power supplies, DC/DC converters, EV batteries, automotive charging stations, and other power electronics components. These units can be synchronously paralleled up to 240kW and dynamically synchronized for generating complex multi-channel transient profiles. The 300% peak overpower capability provides extra headroom for fault condition simulations in automotive batteries, fuel cells, and more.

The 63200A series have three operating voltage choices, 60V, 150V, 600V & 1,200V, with models covering power levels from 2kW to 24kW and up to 2,000A in a single unit.

The DC loads have user defined waveform (UDW) capability and external analog modulating input for simulating real-world, custom waveforms. Another distinct feature is the dynamic auto-frequency sweep function, which enables detecting a UUTs worst case output deviation across a wide range of current frequencies. In addition, a 255-set of data storage function has been built in for recall of the stored settings at any time. For automated testing, the save and recall functions can save a great deal of time.

As each model of the 63200A series has 3 power ranges, they can precisely measure the voltage and current in real time. Since short circuit testing is one of the essential power testing items, the 63200A series provides short circuit simulation to effectively solve the application demands for power and automated testing.

With the vacuum florescent display (VFD) and rotary knob, the 63200A series loads offer versatile front panel operation. Users are able to control the 63200A family remotely via standard USB or optional Ethernet and GPIB interfaces.

The embedded PWM fan speed control reduces noise caused by fans. The 63200A series also have overcurrent, overpower, and over temperature protections as well as over voltage and polarity reverse alarms to enhance product reliability. These DC loads are reliable products for engineering testing and automated test system's integration.

Key Features

• Rated power: 2kW, 3kW, 4kW, 5kW, 6kW, 12kW, 18kW, 24kW, Max. 240kW (Parallel)
• Voltage range: 0-150V, 0-600V, 0-1200V
• Current range: 2,000A max. per unit
• CC, CR, CV & CP operation modes
• CR+CC, CR+CV, CC+CV complex modes
• Up to 10 units master/slave parallel control
• Dynamic synchronous control in static and dynamic loads
• User defined waveform (UDW)
• CZ mode for turn on capacitive load simulation
• External loading current simulation
• Auto frequency sweep up to 50kHz
• Real time power supply load transient response simulation & Vpk+/- measurement
• User programmable 255 sequential front panel input status
• Ultra high precision voltage & current measurement
• Precision high speed digitizing measurement/data capture
• Voltage, current & Pmax measurement for OCP/OLP tesing
• Timing & discharging measurement for batteries
• Instant overpower loading
• Short circuit simulation
• Smart fan control
• Full protection: OC (adjustable), OT,OP (adjustable) protection & OV warning
• Standard USB, optional Ethernet and GPIB interfaces

Description

The 63200E series high power DC loads include a choice of three operating voltages, 150V, 600V and 1,200V, with power levels from 2kW to 24kW and up to 2,000A in a single unit. Power levels can increase up to 240kW when multiple units are paralleled. These high power loads are designed for testing a wide range of EV products including DC charging stations, car battery discharge, on board charger power components, and other power electronics components. With its high power capabilities, parallel control and dynamic synchronization functions make this load ideal for automotive batteries, fuel cells and more.

The 63200E load's master/slave control application enables units with the same voltage specification to be used in parallel and synchronized dynamically to meet the power testing requirements. In addition, a 255-set data storage function has been built-in for recall of the stored settings at any time. When used in automated testing, the save and recall functions can save a great deal of time.

Each model of the 63200E series has precision and real time voltage and current measurements. As short circuit testing is critical to power and automated testing, the 63200E includes short circuit simulation to effectively solve these application demands.

With the vacuum florescent display (VFD) and rotary knob, the 63200E series loads offer versatile front panel operation. For remote operation, users are able to control the 63200E via standard USB or optional Ethernet/LXI and GPIB interfaces.

The embedded PWM fan speed control reduces noise caused by fans. The 63200E series also has overcurrent, overpower, and over temperature protections as well as over voltage and polarity reverse alarms to improve product reliability. These DC loads are reliable, precision instruments ideal design validation testing and automated test system integration.

Key Features

• Rated power: 2kW, 3kW, 4kW, 5kW, 6kW, 8kW, 10kW, 12kW, 15kW, 18kW, 20kW, 24kW
• Voltage range: 0-150V, 0-600V, 0-1200V
• Current range: 2000A max.
• CC, CR, CV & CP operation modes
• Up to 10 units master/slave parallel control
• Synchronous control in static and dynamic loads
• CZ mode for turn on capacitive load simulation
• Real time power supply load transient& response simulation & Vpk+/- measurement
• User programmable 255 sequential front panel input status
• Ultra-precision voltage & current measurement
• Timing & discharging measurement for batteries
• Short circuit simulation
• Smart fan control
• Full protection: OC (adjustable), OT, OP (adjustable) protection & OV warning, >polarity reverse alarm
• Standard USB, optional Ethernet/LXI and GPIB interfaces

Description

As a constant current source, the LED driver has an output voltage range with a constant output current. LED drivers are usually tested in one of the following ways:

• With LEDs
• Using resistors for loading
• Using Electronic Loads in Constant Resistance (CR) mode, or Constant Voltage (CV) mode

However all these testing methods each have their own disadvantages.

As shown on the V-I curve in figure 1, the LED has a forward voltage VF and a operating resistance (Rd). When using a resistor as loading, the V-I curve of the resistor is not able to simulate the V-I curve of the LED as shown in blue on figure 1. This may cause the LED driver to not start up due to the difference in V-I characteristic between the resistors and the LEDs. When using Electronic Loads, the CR and CV mode settings are set for when the LED is under stable operation and therefore, is unable to simulate turn on or PWM brightness control characteristics. This may cause the LED driver to function improperly or trigger it's protection circuits. These testing requirements can be achieved when using a LEDs as a load; however, issues regarding the LED aging as well as different LED drivers may require different types of LEDs or a number of LEDs. This makes it inconvenient for mass production testing.

Chroma has created the industries first LED operating mode for simulating LED loading with our 63110A load model from our 6310A series Electronic Loads. By setting the LED driver's output voltage, and current, the Electronic Load can simulate the LED's loading characteristics. The LED's forward voltage and operating resistance can also be set to further adjust the loading current and ripple current to better simulate LED characteristics. The 63110A design also has increased bandwidth to allow for PWM dimming testing.

Figure 2 shows the current waveform from a LED load. Figure 3 shows the current waveform from 63110A's LED mode load function. From figures 2 and 3, the start up voltage and current of the LED driver is very similar. Figure 4 shows the dimming current waveform of the LED. Figure 5 shows the dimming current waveform when using 63110A as a load.

The internal resistance (Rr) can be adjusted to simulate the LED driver output ripple current. The traditional E-load can not simulate the ripple current of LED shown as Figure 6. Figure 7 shows the ripple current waveform from a LED load. Figure 8 shows the ripple current waveform from the 63110A LED mode load function.

Figure 9 shows the current waveform from a resistive load. Figure 10 shows the current waveform from a CR mode of an Electronic Load loading. Figure 9 and 10 current waveform differs significantly from that of LED loading, especially the voltage and current overshoot, which may cause the LED driver to go into protection. Using resistive load or CR mode to test LED drivers may cause the LED drivers to fail to turn on as shown in Figure 11.

Key Features

• Unique LED mode for LED power driver test
• Programmable LED dynamic resistance (Rd)
• Programmable internal resistance (Rr) for simulating LED ripple current
• Fast response for PWM dimming test
• Up to eight channels in one mainframe
• 16-bit precision voltage and current measurement with dual-range
• Full Protection: OC, OP, OT protection and OV alarm

Description

The Chroma 6310A series Programmable DC Electronic Load is ideal for the test and evaluation of multi-output AC/DC power supplies, DC/DC converters, chargers and power electronic components. It is designed for applications in research and development, production, and incoming inspection. The system is configured by plugging the user selectable load modules into the system mainframe. The user interfaces include an ergonomically designed user friendly keypad on the front panel and the following computer interfaces: RS-232, USB or GPIB.

The 6310A series offers 8 different modules with power ratings from 100 watts to 1,200 watts, current ratings from 0.5mA to 240A, and voltage ratings from 0.5mV to 500V. The loads can be operated in constant current, constant voltage, constant power and constant resistance and may be placed in parallel for increased current and power.

The 6310A series can simulate a wide range of dynamic loading applications. The waveforms programmable parameters include: slew rate, load level, duration and conducting voltage. In addition, up to 100 sets of system operating status can be stored in EEPROM and recalled instantly for automated testing applications.

Real time measurement of voltage and current are integrated into each 6310A load module using a 16-bit precision measurement circuit. The user can perform on line voltage measurements and adjustments or simulate short circuit test using the user friendly keypad on the front panel. Additionally, the 6310A series offers an optional remote controller for automated production lines.

The 6310A series has a self-diagnosis routines to maintain instrument performance. It also provides OP, OC, OT protection, and alarm indicating OV, reverse polarity to guarantee quality and reliability for even in the most demanding engineering testing and ATE applications.

Key Features

• Max Power: 200W, 100Wx2(Dual), 30W & 250W, 300W, 600W, 1200W
• Wide range 0~600V operating voltage
• Compatibility between 6310 and 6310A
• Up to 8 channels in one mainframe, for testing multiple output SMPS
• Parallel load modules up to 1200W for high current and power application
• Synchronization with multiple loads
• Flexible CC, CR, CP and CV operation modes
• Dynamic loading with speeds up to 20kHz
• Fast response of 0.32mA/μs~10A/μs slew rate
• Minimum input resistance allowing load to sink high current at low voltage
• Real time power supply load transient response simulation and output measurement
• User programmable 100 sequences. Front panel input status for user-friendly operating
• High/Low limits of testing parameters to test GO/NG
• Digital I/O control
• Over current protection (OCP) testing function
• 16-bit precision voltage and current measurement with dual-range
• Remote sensing capability
• Short circuit test
• Self-test at power-on
• Full Protection: OC, OP, OT protection and OV alarm
• USB, GPIB & RS-232 interfaces

Description

Chroma Model 6330A series high speed DC electronic improves CPU clock, baud rate, parser and added synchronic parallel function for fast operation, which is ideal for auto test system integration to increase your manufacturing test throughput. Plugging the user selectable load modules into the system mainframe can also provide easy system configuration and future reconfiguration configure the system.

The 6330A family offers 8 types of modular loads with power ranging from 30 watts to 1200 watts, current from 0.5mA to 240A, and voltage measurement from 0.5mV to 500V. Each load is isolated and floating, programmable in dual current range and measuring voltage range, and capable of synchronizing with other modules for control operating. The load can be operated in constant current, constant voltage, and constant resistance.

With Synchronic parallel control capability, 6330A series loads allow users to parallel and synchronize more than one load together from an internal loading control signal. This feature provides synchronic dynamic loading test for multi-output power and high power test solution.

Real time measurement of voltage, current, is integrated into each 6330A load module using a 16-bit precision measurement circuit. The user can perform on line voltage measurement and adjustment, or simulate short circuit test using the simple keypad on the front panel.

The 6330A have self-diagnosis routine to maintain instrumental performance all the time. It is also protected against OP, OC, OT protection, and alarm indicating OV, reverse polarity to guarantee quality and reliability for even the most demanding engineering testing and ATE application.

The FET technology accomplishes minimum input resistance and enables the load to sink high current even at very low voltage. For example, model 63303A is capable of sinking 60A at 1V output, and well-suited for testing the new 3V low voltage power supplies. Low voltage operation, down to zero volt, is possible at correspondingly reduced current level. (see below)

Chroma has created the industries first LED Load Simulator for simulating LED loading with our 63110A load model from our 6310A series Electronic Loads. By setting the LED power driver's output voltage, and current, the Electronic Load can simulate the LED's loading characteristics. The LED's forward voltage and operating resistance can also be set to further adjust the loading current and ripple current to better simulate LED characteristics. The 63110A design also has increased bandwidth to allow for PWM dimming testing.

Key Features

• Improve operating speeds of load for auto test system integration
• Synchronous paralleling control mode, allow Synchronous load control under static and dynamic Loading mode up to 6000W
• Up to 8 channels in one mainframe, fit for testing Multiple output SMPS.
• GPIB/RS-232/USB Interface
• Max Power: 200W, 100W x 2(Dual), 30W&250W, 300W, 600W, 1200W
• Voltage Range: 0~80V / 0V~500V
• CC, CR, CV, CP operating modes
• Dynamic loading with speed up to 20kHz
• Programmable slew rate, up to 10A/μs
• Only need 1V to draw rated current
• Individual panel meters
• Real time power supplies load transient response simulation and output measurement
• 16-bit precision voltage and measurement with dual-range selection
• Remote sensing capability
• Short circuit test
• Self-test at power-on
• CE marking

Description

Chroma's 63600 series DC electronic loads are designed for testing multi-output AC/DC power supplies, DC/DC converters, chargers, batteries, server power supplies, and power electronic components. They are excellent for research, development, produc t ion, and incoming inspection applications.

The 63600's state of the art design uses DSP technology to simulate non-linear loads using a unique CZ operation mode allowing realistic loading behavior.

The 63600 series can draw its rated current under very low voltage (0.4V typical). This unique feature guarantees the best loading performance for modern Point-of-Load conditions and fuel cells.

The 63600 series can simulate a wide range of dynamic loading applications, with programmable load levels, slew rates, duration, and conducting voltage. The 63600 also has a dynamic sweep function to meet the test requirements of ATX power supplies. The instrument allows up to 100 sets of system operating status which can be stored in the EEPROM and recalled instantly for automated testing application.

Real time measurement of voltage and current are integrated into each 63600 load module using a 16-bit measurement circuit with three current ranges. The user can perform online voltage measurements and adjustments or simulate short circuit tests using the simple keypad on the front panel.

With the VFD display and rotary knob, the 63600 loads offer versatile front panel operation. Users are able to control the 63600 family remotely via Ethernet, USB, or GPIB interface.

Also included in the 63600 are self-diagnostic routines and full protections against OP, OC, OT and alarm indicating OV, reverse polarity. This ensures the quality and reliability of the 63600 and provides protection to units under test.

Key Features

• Max. Power : 100W x 2(Dual), 300W & 400W
• Voltage Range : up to 600V
• 5 module mainframe Max. 2000W, load modules up to 400W/ea
• Up to 10 channels in one mainframe, fit for testing multiple output SMPS
• 0.4V @ 80A (Typical) low voltage operating characteristics
• Flexible CC, CR, CV and CP operation modes
• CZ mode for turn on capacitive load simulation
• Parallel mode for high current and power application up to 2kW
• User defined waveform
• Multi Channel synchronous control
• Auto frequency sweep up to 50kHz
• Real time power supply load transient response simulation and Vpk+/- measurement
• User programmable 100 sequential front panel input status for user-friendly operating
• Precision voltage and current measurement
• Precision high speed digitizing measurement/data capture
• Voltage, Current and Pmax measurement for OCP/OLP testing
• Timing measurement for batteries
• Short circuit simulation
• Self-test at power-on
• Full Protection : OC, OP, OT protection and OV alarm
• Ethernet, USB and GPIB interfaces