ECONOMICAL PROGRAMMABLE DC LOADS
The 41S Series DC loads offer high power and current at an affordable price point.
41S Series models are available in power levels of 250W, 350W or 800W. Available input voltage ranges are 0~80Vdc or 0~500Vdc. All models offer a wide V-I constant power load profile allowing for high voltage and low current as well as low voltage and high current applications using the same DC load. The compact form factor of these DC Loads makes them convenient for bench use.
- Power levels 250W, 350W and 700W
- Voltage Ranges 0–80Vdc or 0–500 Vdc
- Max. Current 140 Adc
- Slim-line chassis for 250W or 350W and double-wide chassis for 700W models
- Operating Modes: CC, CP, CR, CV
- Built-in Short Circuit Test
- Over Current Protection Test Mode
- Over Power Protection Test Mode
- Static and Dynamic CC Modes
- Standard Interfaces: USB and RS232
- Available Options: Quick Charger Tester (Opt QCT)
- CE Mark
Load Versatility
All APS 41S Series bench loads are equipped with a powerful microcontroller and user friendly controls to provide capabilities that cover a wide range of load applications. Built in metering of Voltage, Current and Power.
Power Supply Testing
With a choice of low voltage and high current or high voltage and lower current models, the 41S loads support testing of wide range of DC power products and AC/DC converters. The ability to apply fast programmable current slew rates provides extensive testing and evaluation of power supply loop response and stability for a broad range of products.
Power Supply Design
With built-in features like over current protection (OPC) test and over power protection (OPP) test and dynamic constant current waveform testing, new power supply designs can be thoroughly evaluated against design specifications. An analog input mode allows arbitrary current waveforms to be applied to a unit under test as well.
Battery Charge/Discharge Testing
Time sequencing of specific discharge current levels as a function of battery voltage allows characterization and performance testing of various battery chemistries. The high current resolution and accuracy of the 41S Series load modules supports testing of very small batteries for portable device applications. The latest 41S Series DC loads offer built-in battery discharge profiles test modes.
Current Protection Device Testing
Testing of current protection devices like fuses, circuit breakers or PTC’s is automated using special test modes that increment current levels while tracking time to open on 41S model DC load modules..
41S Series Models
| Model | Description | NOM./TURBO PWR (W) | MAX VOLTAGE (V) | NOM./TURBO CURR (A) |
|---|---|---|---|---|
| 41S0850 | DC Load - Bench | 250 | 80 | 50 |
| 41S0870 | DC Load - Bench | 350 | 80 | 70 |
| 41S5015 | DC Load - Bench | 350 | 500 | 15 |
| 41S08140 | DC Load - Bench | 700 | 80 | 140 |
| 41S5030 | DC Load - Bench | 700 | 500 | 30 |
Options
Quick Charger Tester (Opt QCT): This plug-in module works with single channel 41L Series modular DC loads and provides support for testing mobile device chargers that conform to the following charging protocols:- MediaTek PumpExpress
- MediaTek PumpExpresss+
- MediaTek PumpExpress+ 2.0
- Qualcomm Quick Charge 2.0
- Qualcomm Quick Charge 3.0
- USB PD2.0