{
  "$type": "site.standard.document",
  "description": "A controller system for a bathing installation such as a spa, whirlpool bath or a pool, the bathing installation including a line voltage AC supply for selectively powering peripherals. The controller system includes an electronic controller configured to manage and control various peripherals such…",
  "path": "/patents/1381187",
  "publishedAt": "2026-04-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J1/04",
    "Balboa Water Group, LLC"
  ],
  "textContent": "A controller system for a bathing installation such as a spa, whirlpool bath or a pool, the bathing installation including a line voltage AC supply for selectively powering peripherals. The controller system includes an electronic controller configured to manage and control various peripherals such as heaters, pumps, and lights, by modulating the outputs to these peripherals, through the use of one or more Variable Frequency Drives (VFDs) for driving rotating loads and TRIACs with phase angle modulation for driving resistive loads. An exemplary embodiment also features a modular electronics design, allowing for flexible and customizable control of the spa system. Elements of the design include a high voltage bus, card edge connections, and the separation of high voltage and low voltage components.",
  "title": "MODULAR SPA CONTROLLER WITH VARIABLE FREQUENCY DRIVE"
}