Discussion Overview
The discussion revolves around the capabilities of a power supply to handle a load that draws 6A at 35V, and the implications of using a resistor to limit current. Additionally, there is a related inquiry about the behavior of amplifiers in bridge mode and their power delivery to speakers.
Discussion Character
- Technical explanation
- Conceptual clarification
- Debate/contested
Main Points Raised
- One participant questions whether a power supply rated for 4A at 35V can power a device that requires 6A, suggesting the use of a resistor to limit current.
- Another participant explains that using a resistor will create a voltage divider, resulting in insufficient voltage across the device, which may prevent it from functioning properly.
- A different participant asserts that if the device needs 6A, it is unlikely to operate correctly with only 4A, and adding a resistor would worsen the situation, recommending a more powerful power supply instead.
- A later post shifts focus to amplifiers, asking whether using two amplifiers in bridge mode with 8-ohm speakers would effectively double the power delivered to each speaker.
- Another participant responds that while bridging amplifiers can theoretically deliver double the current, the actual power output depends on the amplifiers' ability to provide sufficient current without clipping.
Areas of Agreement / Disagreement
Participants generally agree that a power supply rated for 4A is inadequate for a device requiring 6A. There is also consensus on the limitations of using a resistor in this context. However, the discussion about amplifiers in bridge mode introduces some complexity, with varying interpretations of power delivery and current handling.
Contextual Notes
The discussion includes assumptions about the behavior of power supplies and amplifiers that may depend on specific conditions, such as the characteristics of the devices involved and the power supply's specifications. The implications of using resistors and the concept of bridging amplifiers are not fully resolved, leaving room for further exploration.
Who May Find This Useful
Individuals interested in power supply capabilities, circuit design, and audio amplifier configurations may find this discussion relevant.