Discussion Overview
The discussion revolves around the necessity of .1R/5W resistors, referred to as "anti-swamp" resistors, in a multi-parallel legged current booster schematic using an LM317 variable voltage regulator. Participants explore the differences in schematic requirements between multi-parallel and single parallel configurations, specifically excluding audio amplifier applications.
Discussion Character
- Technical explanation
- Debate/contested
Main Points Raised
- One participant questions the requirement of anti-swamp resistors in multi-parallel configurations compared to single parallel setups, noting that no resistor is shown in the latter.
- Another participant emphasizes that the resistors are necessary to balance current from multiple supplies, suggesting that an imbalance could lead to overheating and potential failure.
- A participant mentions the negative temperature coefficient of the VBE of power BJTs, proposing that a series 0R1 resistor could help maintain similar currents and temperatures.
- Several participants express confusion regarding the schematic and the term "swamp resistor," indicating a need for visual references or further clarification.
Areas of Agreement / Disagreement
Participants do not reach a consensus on the necessity of anti-swamp resistors, with some supporting their use for current balancing and others questioning their requirement based on schematic differences.
Contextual Notes
There is a lack of visual references to the schematics being discussed, which may limit understanding of the arguments presented. The term "swamp resistor" is not universally understood among participants.
