Symbol

UC3843

Current-mode PWM controller — offline SMPS, the flyback standard

⚡ Install this symbol

Paste this into Claude Code (VS Code panel, Adom editor, or terminal) to install:

Search the Adom Wiki for the symbol "UC3843" (slug: sym-uc3843) at https://wiki-ufypy5dpx93o.adom.cloud/wiki/symbols/sym-uc3843. Download the .kicad_sym file from the wiki page's static assets. Add it to my current KiCad project's symbols/ directory and register in sym-lib-table.
Category Power Controller
Library Regulator_Controller
Symbol UC3843_DIP8
Pins 8
Package DIP-8
Schematic Symbol

AI Skill Technical Reference

Edit AI Skill

UC3843

Symbol: UC3843_DIP8 Library: Regulator_Controller Category: Power Controller Pins: 8 Package: DIP-8

Description

The UC3843 is a current-mode PWM controller for offline and DC-DC switching power supplies. Fixed 50% max duty cycle, internal reference, under-voltage lockout. The workhorse behind countless flyback converters and phone chargers. DIP-8.

KiCad Library Reference

This symbol is from the official KiCad Regulator_Controller library. Full identifier: Regulator_Controller:UC3843_DIP8

To use in your project:

  1. Open the Symbol Library Manager in KiCad
  2. Search for UC3843_DIP8
  3. Place the symbol in your schematic

Sub-Skills
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What are Sub-Skills?

Sub-skills are community-contributed AI skill extensions for this component. They teach AI assistants about specific tools, configurators, or workflows.

Examples:

  • A manufacturer’s configuration tool for a motor controller
  • A community-written design guide for an amplifier circuit
  • An automated test/validation script for a sensor module

How to add one: Click Add Sub-Skill, provide the URL to your skill and a brief description. Submissions are reviewed by the Adom team before going live.

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0 revisions · KiCad Library: Regulator_Controller:UC3843_DIP8 · Updated 2026-03-02 17:31:36