Application | Unveiling the Tool That Boosts Fast Charging Test Efficiency by 100%

With the widespread adoption of smart devices such as smartphones and tablets, the fast charging adapter market continues to grow. According to third-party data, the industry's market size reached 17.9 billion yuan in 2024, a year-on-year increase of 16%.  

To enhance user charging experience and reduce charging time, fast charging technology has emerged. Currently, the mainstream fast charging power in China exceeds 65W, with a penetration rate as high as 96%. The working standards mainly include PD, QC, AFC, PE, FCP, SCP, VOOC, and others.  

Traditional Single-Channel Loads Occupy Space, Limiting Single-Cabinet Testing Efficiency

To ensure fast charging test efficiency, the industry typically uses ATE (Automatic Test Equipment) for multi-channel fast charging testing. However, constrained by the space limitations of traditional desktop electronic loads, the testing faces the following pain points:  

• Limited testing capability, high cost, and space consumption

Traditional single-channel fast charging test loads occupy a 2U half-width space, and a single ATE testing device usually supports 4-8 fast chargers/adapters for simultaneous testing. Amid the rapid growth of fast charging, the testing capacity of a single cabinet has reached its ceiling. Adopting more load units for testing would require more space and higher costs.  

• Diverse fast charging protocols

The market features various fast charging protocols such as USB PD, QC, and PE. Testing equipment must be widely compatible to meet the testing needs of different fast charging adapters.   

• Parameter measurement integrity and accuracy

The testing process requires simulating the entire charging workflow, including constant current, constant voltage, and trickle charging, as well as high-precision measurements of parameters (voltage, current, power, ripple) to achieve high-fidelity simulations of real-world conditions.  

Multi-Channel Electronic Load Supporting All Protocols Boosts Fast Charging Test Efficiency by 100%

To address these testing challenges, NGI has developed the N61200 series multi-channel fast charging test load, which perfectly matches fast charging ATE bench testing. The product offers the following features:  

• High integration

One unit replaces four, integrating 4 channels in a 2U half-width space. Compared to traditional single-channel electronic loads, the testing capacity of a single ATE cabinet is increased by 100%.  

• Rich fast charging protocols

Supports optional fast charging test functions, including USB PD2.0/PD3.0/PD3.1, QC 2.0/QC 3.0/QC4.0+, PE+/PE+2.0, FCP, SCP, AFC, and more. It enables rapid validation of fast charging adapter performance under different protocols.  

• Multifunctional

Supports 8 testing modes, including CC, CV, CR, CP, CV+CC, CV+CR (CR-LED), CR+CC, and CP+CC, meeting the testing needs of various devices such as fast charging heads, adapters, LED power supplies, and switch power modules.  

• High precision

Voltage accuracy of 0.025% + 0.025% F.S., current accuracy of 0.03% + 0.05% F.S., with dual-range design for voltage, current, resistance, and power. It ensures precise measurements of U/I/P parameters under different testing conditions.  

Supports functions such as ripple measurement, load effect, and OCP/OVP/OPP testing to meet various application requirements.