Sequential Flat Speaker Startup via Delay Circuits
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Solution Overview
Problem
Conventional methods for starting multiple speakers simultaneously require high-output power supplies, leading to bulkiness, high power consumption, and potential damage from high inrush currents, resulting in unstable sound quality and reduced speaker lifespan.
Innovation Solution
A flat speaker output device comprising multiple flat speakers connected in series with delay circuits, where each speaker is started sequentially, using a power controller to manage power distribution through initial and intermediary delay units, reducing inrush current and power requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple speakers are started simultaneously by a high-output power supply, then all speakers can be powered on at the same time, but the power supply device becomes bulky, consumes excessive power, and generates high inrush current that may damage speakers
Solution Approach 1:
The patent divides the simultaneous startup process into sequential segments by introducing delay circuits for each speaker. Each speaker is started at a different time point through individual delay circuits, transforming the single high-power simultaneous startup into multiple low-power sequential startups, thereby reducing peak power consumption and inrush current
Solution Approach 2:
The delay circuits perform preliminary action by delaying the power supply to each speaker in advance. This preliminary delay ensures that speakers are not all activated at the same moment, preventing the surge of inrush current that would occur with simultaneous startup while still achieving complete system activation
2Productivity
If a high-output power supply device is used to start multiple speakers simultaneously, then all speakers receive power at once, but the power supply device becomes bulky and hard to transport
Solution Approach 1:
The patent segments the power supply process into multiple sequential stages, allowing the use of a smaller power supply device. By dividing the simultaneous power distribution into sequential distributions with small time intervals, the system maintains efficient startup performance while reducing the power supply device size and weight
Solution Approach 2:
The patent implements periodic action through delay circuits that create time intervals between speaker activations. This periodic sequential startup maintains overall system productivity by ensuring all speakers are eventually powered on, while the time spacing allows a smaller power supply to handle the load
3Reliability
If multiple speakers are connected in parallel and started simultaneously, then all speakers operate together, but the inrush current may damage speakers or shorten their service life
Solution Approach 1:
The patent segments the power distribution system by introducing individual delay circuits for each speaker. This segmentation protects speakers from damaging inrush current by ensuring sequential activation, while the modular delay circuit design keeps the added complexity manageable and organized
Solution Approach 2:
The delay circuits serve as intermediary components between the power supply and speakers. These intermediaries control the timing of power delivery to each speaker, protecting the speakers from direct exposure to high inrush current while maintaining a relatively simple overall system architecture
Data Source
AI summary
The present invention discloses a flat speaker output device and a method for starting the same. Wherein, a plurality of flat speakers utilizes an initial delay unit and a plurality of intermediary delay units connected in series. The initial delay unit connects with the power controller and a first one of the flat speakers. The intermediary delay units respectively connect with the residual each flat speakers. The power controller controls a power source to the initial delay unit to delay the start of the first one of flat speakers, and outputs the power source to the intermediary delay units to sequentially delay the starts time of the residual each flat speaker. The present invention can sequentially start flat speakers without using a high-output power supply device and thus decrease the required capacity of the external power supply device.