The HD35 offers you a compact electronic USB-load-resistor with a performance capability up to 35 Watt. The present current can be easily read on the LCD-Display. Moreover, the device has an adjustable trimmer and is because of this capable of simulating different charging electronics like QC2.0, QC3.0, FCP and AFC 9V. The maximal voltage is up tp 25 V and the maximal current is up to 5 A. This is the reason that it is suitable for nearly every area of application. The built-in cooling component in connection with the temperature controlled fan unit is very effective in cooling down the complete device. With the help of the integrated button it is possible to activate or deactivate the configurated load very fast. Features USB Load Resistor up to 35 W Adjustable via built-in trimmer LCD display of actual current strength Buttons for switching the load on/off Simulation of different charging electronics: QC2.0 (5 V, 9 V, 20 V), QC3.0, FCP, AFC 9V Technical Details Operating Voltage 4 V - 25 V Operating Current 0.25 A - 5 A Power 35 W Measuring Temperature Range -10 °C - 40 °C Display 4 Digit Segment Display Display Color Red Fan Speed 8000 RPM ± 10% | Temperature-controlled Connections USB 2.0, MicroUSB, USB Type-C Dimensions 84 mm x 41 mm x 28 mm Weight 52 g
The Siglent SDL1020X-E DC Load leads with measurement resolution of 0.1 mV/0.1 mA and the base SDL1000X-E series resolution is 1 mV/1 mA and adjustable current rise times from 0.001 A/μs~2.5 A/μs. For remote communication and control, the SDL series includes S232/USB/LAN interface types. The SDL1020X-E delivers stability over a wide range of applications and can meet all kinds of testing requirements. including: Power, battery/handheld device design, industry, LED lighting, automotive electronics, and aerospace. Features SDL1020X-E (Single channel): DC 150 V/30 A, total power 200 W 4 static modes / Dynamic mode: CC/CV/CR/CP CC Dynamic mode: Continuous, pulsed, toggled CC Dynamic mode: 25 kHz, CP Dynamic mode: 12.5 kHz, CV Dynamic mode: 0.5 Hz Measuring speed of voltage and current: up to 500 kHz Adjustable current rise time range: 0.001 A/us~2.5 A/us Min. readback resolution: 0.1 mV, 0.1 mA Short-circuit, Battery test, CR-LED mode, and factory test functions 4-wire SENSE compensation mode function List function supports editing as many as 100 steps Program function supports 50 groups of steps OCP, OVP, OPP, OTP and LRV protection External analog control Voltage, Current monitoring via 0-10 V 3.5 inch TFT-LCD display, capable of displaying multiple parameters and states simultaneously Built-in RS232/USB/LAN communication interface, USB-GPIB module (optional) Waveform trend chart and easy-to-use file storage and call functions Includes PC software: Supports SCPI, LabView driver Included 1x Siglent SDL1020X-E DC Programmable Load 1x Quick start guide 1x Guarantee Card 1x Power Cord 1x USB Cable
The QA451 is designed for high-speed testing of amplifiers. If you are testing at the module level (with modules designed for single supply operation), the QA451 allows the on/off control and current measurement of the supply rail. The QA451 is a companion product to the QA403 audio analyzer. When combined, the products work together to ensure fast, repeatable automated measurements of audio power amplifiers up to several hundred watts. Features Programmable 4/8 Ω load Fully isolated from PC USB powered Up to 200 W for 220 mS DC Current Sensing Integrated 6th order LPF REST Interface The QA451 can be controlled manually from a PC application or controlled using a web-based REST interface. Measuring Current The QA451 allows low-cost external fixed-voltage supplies to be used to power your amplifier during test – dramatically reducing your investment per test bay. The QA451 integrates a high-side switch, enabling on/off control of the supply to the amplifier. When turning on the supply, a momentary soft-start circuit ensures the amplifier-under-test isn’t exposed to high currents that might overstress components. And during operation, the QA451 provides an isolated current measurement, allowing up to 15 A (peak) of DC current to be measured with 10-20 mA of resolution. This permits automated efficiency measurements to be easily made – a primary predictor of whether the amplifier was assembled correctly. 4 and 8 Ω Loads The QA451 provides both 4 and 8 ohm resistive loads. The loads are thermally protected using fast, high-accuracy digital thermal sensors ensuring that fault conditions won’t damage the QA451. Downloads Datasheet Wiki Software
