SiGa Power75

The NuPrime SiGa Power75 is a high-performance AC-to-DC power adapter engineered for precision audio and other low-noise electronic applications. More than a conventional power brick, it is a sophisticated power conversion platform that transforms incoming AC mains power into highly stable 12V and 5V DC outputs with exceptional efficiency, speed, and noise control.

At its core is an advanced hybrid architecture that combines Silicon Carbide (SiC) and Gallium Nitride (GaN)—third-generation semiconductor technologies known for high switching speed, low energy loss, and superior thermal performance. By applying these technologies to power rectification, conversion, and regulation, the SiGa Power 75 delivers a cleaner, faster, and more stable DC supply for sensitive audio components, digital processors, streamers, network devices, DACs, reclockers, and other low-voltage equipment where power quality directly affects performance.

Designed to address the limitations of standard adapters—such as switching noise, common-mode interference, RF contamination, slow transient recovery, and voltage instability—the SiGa Power 75 provides a refined low-noise power foundation that helps preserve signal integrity, timing accuracy, and system consistency.

1. SiC Circuit
2. GaN Circuit
3. 5V Control Circuit
4. ANC Control Circuit
5. Polymer Capacitor & Filter

Key Features

SiC & GaN Hybrid Power Architecture

Combines Silicon Carbide and Gallium Nitride semiconductor technologies to deliver up to 93% conversion efficiency, fast dynamic response, reduced switching loss, and improved thermal performance.

Common-Mode Active Noise Cancellation — CM-ANC
Actively reduces common-mode EMI/RFI noise across the power output and load feedback paths, helping connected equipment operate from a quieter DC supply.

Precision 12V and 5V DC Output
Converts AC mains power into regulated 12V and 5V DC outputs, providing clean and stable power for compatible audio, digital, and low-noise electronic components.

High-Speed Transient Performance
Responds rapidly to changing load demands, helping maintain voltage stability during dynamic operating conditions for a more controlled and consistent system performance.

Bronze-Shielded RF Isolation
A dedicated bronze shielding structure helps block high-frequency radio interference and reduce internal module interaction, supporting cleaner power delivery.

Real-Time Power Monitoring
An integrated precision display provides live readings of voltage, current, and wattage, with dedicated DIM and ANC controls for convenient system adjustment.

Built for Sensitive Audio and Digital Systems
Ideal for DACs, streamers, network switches, routers, reclockers, digital processors, and other components that benefit from fast, stable, low-noise DC power.

Advanced Technology Deep Dive

The engineering behind the SiGa Power75’s high-speed, low-noise power performance

Zero Reverse Recovery Charge with SiC Schottky Diodes
Conventional silicon diodes can generate reverse-recovery current during high-speed switching, producing unwanted high-frequency spikes that may contaminate the DC supply. The SiGa Power75 uses Silicon Carbide Schottky diodes, which exhibit effectively zero reverse recovery charge. This helps reduce switching artifacts, lower high-frequency noise, and provide a cleaner electrical foundation for sensitive audio and digital circuits.

Nanosecond-Grade GaN Transient Response
Gallium Nitride transistors switch dramatically faster than traditional silicon MOSFETs, enabling the SiGa Power75 to react rapidly to sudden changes in load demand. This high-speed transient capability helps maintain voltage stability during dynamic passages, supporting tighter bass control, improved timing accuracy, and a more authoritative presentation.

Wide-Bandwidth Active Common-Mode Cancellation
The SiGa Power75 incorporates active noise-cancellation circuitry that continuously monitors common-mode noise and injects an inverted-phase correction signal to suppress unwanted EMI/RFI. Operating across a wide bandwidth of up to 1 MHz, this system helps reduce interference that can mask low-level detail, allowing connected equipment to operate from a quieter DC power supply.

Non-Resonant Bronze Isolation Shielding
The GaN module is enclosed within a dedicated bronze isolation shield designed to reduce both radio-frequency interference and mechanical resonance. Compared with conventional lightweight shielding materials, bronze offers a combination of high conductivity, mass, and damping characteristics, helping minimise internal cross-talk between power modules and preserve signal integrity.

Low-Impedance Energy Reservoir
A high-Q, two-stage energy storage matrix decouples the rectification stage from the regulation stage, allowing the SiGa Power 75 to maintain exceptionally low output impedance. This low-impedance power reservoir improves voltage stability under changing load conditions, reduces ripple and noise, and helps minimise timing-related errors such as jitter in sensitive digital audio devices.

Block "dc-cable-psu" not found