3CTEST New -40V to +80V / 100A
Four-Quadrant Bipolar Power Supply Voltage Variation Simulator
Fully standard-compliant · Bipolar output · High-bandwidth adjustable
Arbitrary waveform editing · Adaptable to all scenarios
Background
With the rapid advancement of vehicle electrification and intelligence, the operational stability of on‑board electronic equipment directly depends on its ability to withstand various transient events from the vehicle’s power supply. Complex conditions such as voltage drops, short interruptions, pulse disturbances, and ripple noise constantly challenge the reliability of automotive electronics. From international ISO and GB standards to OEM‑specific test specifications of VW, BMW, Ford, and other major automakers, stringent requirements are imposed on the simulation of vehicle power supply characteristics. Related testing has become a mandatory requirement for the development and type approval of 12V/24V/42V/48V on‑board electronic systems, while also extensively covering the power supply reliability verification needs of electrical equipment in military, aviation, railway and many other sectors.
Technical Challenges
The industry currently faces multiple critical pain points: Unipolar power supplies cannot cover negative voltage conditions, making it impossible to fully reproduce the transient characteristics of vehicle power systems. Insufficient bandwidth fails to simulate high‑frequency ripple and noise, limiting test coverage. Non‑adjustable output impedance makes it difficult to precisely match the wiring harness impedance characteristics of different vehicle models. Limited waveform editing capability prevents accurate reproduction of complex real‑world vehicle power waveforms. Additionally, the wide variation in OEM test specifications across global automakers creates high equipment adaptation difficulty, preventing one‑stop test coverage.
Solution
3CTEST APS 80G100DSR Four-Quadrant Power Supply Voltage Variation Simulator
Built on a four‑quadrant bipolar amplifier core architecture, the APS 80G100DSR is strictly designed to comply with ISO, GB, and major global OEM test specifications. It directly addresses industry testing pain points, providing a comprehensive, high‑precision, high‑reliability solution for power supply characteristic simulation and testing across automotive electronics and many other fields.

Key Product Advantages
Standard and OEM compliance – global presence
Perfectly compliant with ISO 7637-2, GB/T 28046.2, ISO 16750-2:2023, ISO 21780 and other international/national standards. Fully supports the proprietary test specifications of major global automakers including VW, BMW, Fiat, Ford, GM, Volvo, and more. Offers one‑stop coverage for all test requirements of 12V/24V/42V/48V on‑board electronic systems.
Four‑quadrant bipolar output – wide range, precise control
Adopts a four‑quadrant bipolar power supply architecture. Output voltage range: -40 V to +80 V, accuracy ±0.1 V; maximum continuous output current 100 A, peak current 200 A (duration >200 ms). Can directly replace the vehicle battery for laboratory testing, and also serves as a high‑performance DC power supply and battery simulation equipment.
High bandwidth, fast response – adjustable impedance, precise compensation
Output frequency up to 300 kHz, built‑in signal generator frequency range DC to 500 kHz. Rise time as fast as<3 μs/10 μs (12 V DC to 13 V DC; 0 V to Vmax DC). Source impedance adjustable from 0 mΩ to 200 mΩ (10 mΩ steps) to match different wiring harness impedance characteristics. Built‑in automatic voltage drop compensation with ±0.1 V accuracy and maximum 4 V compensation, eliminating test errors caused by line losses.
Comprehensive waveform editing – adaptable to complex test scenarios
Built‑in high‑performance signal generator supports DC, ramp, triangle, sine, square, sweep, exponential, oscilloscope‑stored waveforms, and user‑defined arbitrary waveforms. Waveforms can be imported via CSV files. A single waveform supports up to 1,000 segments, each with up to 8,000 points. Can accurately simulate Pulse 2b, Pulse 4, sine‑wave noise, superimposed noise, and other complex power supply waveforms, meeting both standard and non‑standard test requirements across all scenarios.
Easy to operate and efficient – supports fully automated workflows
Equipped with a 5.7‑inch TFT touch screen for intuitive local parameter configuration and real‑time test status visualization. Standard Ethernet LAN (RJ45) interface, optional AutoLab automotive immunity test software, compatible with all Windows operating systems. Built‑in standard test library, supports custom test programs, one‑key automated testing, and automatic test report generation and export. With optional accessories such as oscilloscopes and current probes, a complete test system can be quickly assembled.
Comprehensive monitoring & protection – adaptable to multiple industries
Built‑in real‑time monitoring of output voltage and current, with multiple protection functions. Operating status is fully visualized. With stable and reliable performance and strong environmental adaptability, the APS 80G100DSR is widely applicable not only in automotive electronics but also in power supply reliability testing for military, aviation, telecommunications, medical, broadcasting, railway, and many other industries.
Main Specifications
| Output voltage | -40 V ~ +80 V, accuracy: ±0.1 V | ||
| Output current (continuous) | Max 100 A | ||
| Peak current | 200 A, duration >200 ms | ||
| Frequency range | DC ~ 300 kHz full band, resolution: 0.01 Hz, accuracy: ±1% | ||
| Vpp | Max 32 V (DC - 300 kHz) | Accuracy | < 3V ±0.1 V ≥ 3V ±0.2 V |
| Ipp | Max 200 A | ||
| Internal signal generator | |||
| Frequency range | DC ~ 500 kHz | ||
| Waveform types | DC, ramp, triangle, sine, square, sweep, exponential, oscilloscope‑stored data waveforms, user‑defined arbitrary waveforms, irregular and random waveforms | ||
| Configurable waveform parameters | Amplitude, duration, frequency, DC offset, rectification, duty cycle, phase angle, trigger | ||
| Amplitude and offset variation | Static, linear, logarithmic | ||
| Frequency variation | Static, linear, logarithmic Linear step range: 10 Hz ~ 10 kHz Logarithmic step range: 1% ~ 100% | ||
| Start / end phase control | 0° ~ 359°, 1° step | ||
| Rectification | None, positive, negative, full‑wave | ||
| Import file type | CSV | ||
| Waveform points in import file | 8 k | ||
| Segments per waveform | Up to 1,000 segments per waveform, each segment can be composed of various waveform types | ||
| Segment duration | DC waveform: 10 μs ~ 299 h Triangle, sine, square, sweep: 1 ms ~ 299 h Exponential, oscilloscope‑stored data waveforms: 1 ms ~ 20 s | ||
| Number of cycles | 1 ~ 9,999 | ||

System overall connection diagram

ISO 16750-2:2023 Ripple closed‑loop setup diagram