DWSD.md
v1.0

HW Base

type
unit
unit-type
team , work-system
flightlevel
1
member-of
Charger ART
contributes-to
Wallbox , DC Charger
delegator
Marit Solberg
tags
platform
version
1.0
decision_date
2026-06-29
review_date
2026-12-28
created_at
2026-10-10

In context

Inferred from the org folder · scroll to zoom, drag to pan, click a box to open it
Inferred from the org folder · click a box for its details, +/− to collapse, scroll to zoom, drag to pan

Purpose

Provide the hardware platform both product lines are built on: the power and metering module, the control board, and the enclosure base with its tooling. One platform, two products — so that a power-stage improvement reaches the Wallbox and the DC Charger in the same release instead of being built twice.

Key Responsibilities

  • Own the shared power module, metering, control board and enclosure base.
  • Keep a variant roadmap that serves both product lines’ PI commitments.
  • Run design-for-manufacturing reviews with Manufacturing before a tooling release.
  • Specify long-lead parts and tooling early enough for Supply Chain to source them.

Customers and Deliverables

  • Wallbox — the power and metering module in its 7–22 kW variants, the enclosure base.
  • DC Charger — the power module stacked for 50–150 kW, the dispenser enclosure base.
  • Manufacturing — producible designs: drawings, BOM, test specifications.

Dependencies

Depends on Supply Chain for power semiconductors and enclosure tooling, on Manufacturing for producibility feedback, and on System Integration for EMC and safety pre-tests.

External Constraints

  • Injection-mold tooling: about fourteen weeks from release to first parts — longer than one PI.
  • Power-semiconductor allocation from suppliers, set quarterly.

Key Challenges

  • Two customers with different cadences and priorities pull on one team; the ART decides the order, but every PI planning is a negotiation.
  • A platform change ripples into both product lines’ certification scope.
  • Tooling has to be released before the product lines have finished integrating — the team commits to a mold while the design is still moving.

Key Resources

Delegator Responsibilities

  • Marit Solberg decides what is platform and what is product, and arbitrates when the two product lines’ needs collide.

Competencies, Qualities and Skills

  • Power electronics, thermal and mechanical design, design for manufacturing, saying no to variant requests that split the platform.

Key Metrics and Monitoring

  • Platform reuse: share of each product’s BOM that is platform; tooling releases on time for the PI they serve; DFM findings caught before tooling release.

Evaluation Schedule

Reviewed at the end of every second PI; next review 2026-12-28.

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HW Base.md
---
type: unit
unit-type:
  - team
  - work-system
flightlevel: 1
member-of: "[[Charger ART]]"
contributes-to:
  - "[[Wallbox]]"
  - "[[DC Charger]]"
delegator: "[[Marit Solberg]]"
tags:
  - platform
version: "1.0"
decision_date: 2026-06-29
review_date: 2026-12-28
created_at: 2026-10-10
---
## In context


```dwsd.topology
mode: infer
radius: 2
```


```dwsd.units
mode: infer
focus: self
radius: { up: 1, down: inf }
```


## Purpose


Provide the hardware platform both product lines are built on: the power and metering
module, the control board, and the enclosure base with its tooling. One platform, two
products — so that a power-stage improvement reaches the [[Wallbox]] and the [[DC Charger]]
in the same release instead of being built twice.


## Key Responsibilities


- Own the shared power module, metering, control board and enclosure base.
- Keep a variant roadmap that serves both product lines' PI commitments.
- Run design-for-manufacturing reviews with [[Manufacturing]] before a tooling release.
- Specify long-lead parts and tooling early enough for [[Supply Chain]] to source them.


## Customers and Deliverables


- [[Wallbox]] — the power and metering module in its 7–22 kW variants, the enclosure base.
- [[DC Charger]] — the power module stacked for 50–150 kW, the dispenser enclosure base.
- [[Manufacturing]] — producible designs: drawings, BOM, test specifications.


## Dependencies


Depends on [[Supply Chain]] for power semiconductors and enclosure tooling, on
[[Manufacturing]] for producibility feedback, and on [[System Integration]] for EMC and
safety pre-tests.


## External Constraints


- Injection-mold tooling: about fourteen weeks from release to first parts — longer than
  one PI.
- Power-semiconductor allocation from suppliers, set quarterly.


## Key Challenges


- Two customers with different cadences and priorities pull on one team; the ART decides
  the order, but every PI planning is a negotiation.
- A platform change ripples into both product lines' certification scope.
- Tooling has to be released before the product lines have finished integrating — the
  team commits to a mold while the design is still moving.


## Key Resources


- [[Yara Ben Salem]] (power electronics) and [[Ole Brekke]] (mechanics); the power lab.


## Delegator Responsibilities


- [[Marit Solberg]] decides what is platform and what is product, and arbitrates when the
  two product lines' needs collide.


## Competencies, Qualities and Skills


- Power electronics, thermal and mechanical design, design for manufacturing, saying no
  to variant requests that split the platform.


## Key Metrics and Monitoring


- Platform reuse: share of each product's BOM that is platform; tooling releases on time
  for the PI they serve; DFM findings caught before tooling release.


## Evaluation Schedule


Reviewed at the end of every second PI; next review 2026-12-28.