For Smart Meters and HEMS AC/DC Power Adapter Semi-Custom Support Case | Long Life, High Reliability Design Duplicate

Semi-custom AC adapter solutions for smart meters and HEMS. Based on existing designs, we introduce examples that address requirements specific to residential equipment, such as extended lifespan, high temperature and humidity environments, and noise countermeasures.

What Are AC Adapters for Smart Meters and HEMS?

Smart meters and HEMS (Home Energy Management Systems) are devices that, once installed in a residence, cannot be easily replaced or maintained.

Therefore, unlike typical AC adapters for IT and telecommunications equipment,

High reliability designed for long-term use
Resistance to high-temperature and high-humidity environments
Consideration for radio interference and noise

are required as unique demands of residential equipment.

At Unifive, leveraging the expertise cultivated in the IT and telecommunications fields, we optimize AC adapters for HEMS through semi-custom solutions based on existing designs.

What Is a Semi-Custom Solution?

A semi-custom solution involves reviewing certain specifications and components while utilizing an existing AC adapter design.

No major changes to the circuit configuration
Based on a proven design
Meeting requirements with minimal necessary adjustments

This approach makes it possible to achieve an optimal balance of cost, lead time, and reliability.

Addressing Requests for Long-Life Models

Since residential equipment is expected to operate stably over long periods, AC adapters are also required to have a long-life design.

At Unifive, we provide semi-custom solutions aimed at extending product life by:

Selecting power supply models with proven track records
Re-evaluating internal components (such as electrolytic capacitors)
Designing with appropriate margins considering the operating environment

Support for High-Temperature and High-Humidity Environments

Depending on the installation location, residential equipment may be exposed to:

High temperatures in summer
High-humidity environments

such conditions may occur.

At Unifive, based on our wide operating temperature range AC adapter series, we provide modifications as needed to adjust specifications suitable for HEMS applications.

Measures Against Radio Interference and Noise in Indoor Environments

HEMS devices coexist with various electronic devices in the home. Therefore, measures against power supply-related noise and radio interference are also important considerations.

At Unifive, we leverage the expertise accumulated in the fields of:

IT and telecommunications equipment
Audio equipment

to propose noise countermeasures at the semi-custom level.

Cases Where Semi-Custom Solutions Are Suitable

Basic specifications can be met with existing products
Improved reliability is desired for residential equipment
Cost and lead time are priorities
Redesign or large-scale evaluation should be avoided

In such cases, semi-custom solutions are effective.