Multicoil Balanced Armature Receiver With Frequency-Dependent Impedance

The patent applies parameter changes by dynamically adjusting the electrical impedance of the receiver based on frequency. A capacitor is connected in parallel with the coil, creating a frequency-dependent impedance modification. At lower frequencies, the capacitor presents high impedance, allowing the receiver to operate with lower resistance for maximum acoustic output. At higher frequencies, the capacitor presents lower impedance, increasing the total impedance to reduce power consumption and prevent reboots. This frequency-dependent parameter adjustment resolves the contradiction between acoustic output and power consumption.

The patent uses parameter changes by introducing a capacitor that modifies the electrical impedance characteristics based on frequency. The capacitor's reactance changes with frequency, providing high impedance at low frequencies (allowing low resistance operation for acoustic output) and low impedance at high frequencies (increasing total impedance to prevent voltage drops). This dynamic parameter adjustment maintains system stability across the audio spectrum while preserving acoustic output performance.

The patent applies parameter changes by adding a capacitor in parallel with the coil to create a frequency-dependent impedance modification. At higher frequencies, the capacitor provides a lower impedance path that complements the coil's inductance, allowing the system to maintain appropriate impedance levels for acoustic output without excessive power consumption. This parameter adjustment optimizes the balance between inductance benefits and impedance penalties across the frequency spectrum.