Overview
IEC TS 62700:2014 - "DC power supply for notebook computers" is a Technical Specification from the International Electrotechnical Commission (IEC) that defines minimum electrical and electro‑mechanical requirements for DC power supplies (AC adapters) used with notebook computers. The document specifies performance characteristics, an ID pin method for adapter identification/communication, and the connector geometry for DC power output to promote interoperability, safety and reuse of adapters.
Key topics
- Electrical specification (performance characteristics)
- AC input rating, inrush current and power timing behaviors (turn‑on delay, hold‑up time, rise time).
- DC output requirements including load conditions and voltage regulation, output ripple and noise, transient response and capacitor loading.
- Protections and reliability
- Requirements and considerations for over‑current protection, short‑circuit protection, and over‑shoot behavior.
- Annexes discuss safety, EMC, leakage, peak currents, and expected issues when adapters and hosts are interchanged.
- Identification & communication
- An ID pin method to allow the notebook and adapter to identify each other and to manage power delivery safely.
- Connector and cabling
- Defined shape and dimensions for DC connectors (see figure/table references in the TS), voltage polarity and electrical ratings, plus cable quality and replaceable‑cable considerations.
- Guidance & informative annexes
- Background discussion, EMC and safety investigation areas, environment and reliability issues, and example electrical specifications.
Applications
IEC TS 62700 is intended to:
- Enable interoperable AC adapters across notebook models to reduce e‑waste and improve reusability.
- Provide manufacturers with a baseline specification for designing AC adapters and host power interfaces.
- Help test labs and conformity assessors evaluate adapter performance, protections and connector compliance.
- Guide OEMs, aftermarket suppliers, system integrators and regulatory bodies on safe adapter/host combinations and potential EMC/safety interactions.
Who should use this standard
- Notebook OEMs and AC adapter manufacturers designing or validating power supplies.
- Test laboratories and certification bodies assessing electrical, EMC and safety aspects.
- Product managers and sustainability planners seeking to standardize adapters for reuse and reduce e‑waste.
- Aftermarket accessory makers aiming for compatibility with multiple notebook platforms.
Related standards
- Referenced normative standards for safety, EMC and wiring in the TS (see normative references). The TS is complementary to applicable IEC safety and EMC standards used in adapter and system certification.
Keywords: IEC TS 62700:2014, DC power supply, notebook computers, AC adapter standard, DC connector, ID pin method, voltage regulation, over-current protection, ripple and noise, power supply timing.