US 10,834,504 B2 · Temperature detecting and controlling integration device and the temperature controlling method applied for micro speaker

Abstract

A temperature detecting and controlling integration device for the micro speaker is provided. After the filter receives an input signal, the power amplifier adjusts the power amplification, and the multi-frequency detection signal is generated with the waveform generator. The extracted signal is generated to drive the micro speaker to emit a sound signal. Afterwards, the voltage signals are extracted at two ends of the coil and the temperature signal is obtained by converting, capturing, and integrating to pass the temperature value to the external device, and the temperature value of the non-linear temperature-controlling unit is analyzed to adjust the compensation gain in real time. The smoothly control of speaker temperature and stable playback of the sound signals is played that can be achieved.

Claims12

Dependent claims

A method for controlling a coil temperature of a micro speaker, comprising:

transmitting a temperature signal into a non-linear temperature-controlling unit;
storing a temperature signal and a table by a data storage module of the non-linear temperature-controlling unit;
determining whether a current temperature of the temperature signal is within a rated temperature range, if it is, an adaptive process is performed;
generating a temperature change rate with the adaptive process;
capturing the temperature signal and the temperature change rate to calculate a compensation gain;
and
transmitting the compensation gain to a power amplifier to obtain a new power amplification;
wherein the compensation gain is calculated by the formula as:
Δ
⁢
⁢
G
⁡
(
T
,
t
)
=
-
A
·
(
T
-
T
0
)
-
B
·
(
Δ
⁢
⁢
T
Δ
⁢
⁢
t
)
a
,
wherein A and B represent coefficient respectively, T represents the current temperature of the temperature detecting and controlling integration device C, T0 is the comparison reference temperature, and ΔT/Δt represents the temperature change rate.

41 more elements

A temperature detecting and controlling integration device coupled with a computer which is used for controlling a coil temperature in a micro speaker, comprising:

an arithmetic unit is provided for transmitting a temperature signal into a non-linear temperature-controlling unit;
a data storage module of the non-linear temperature-controlling unit is provided for storing the temperature signal, wherein the temperature signal is stored in the data storage module and is provided for determining whether the current temperature of the temperature signal is within a rated temperature range;
a data conversion module is provided for generating a temperature change rate and is provided for capturing the stored data to calculate to form a compensation gain;
and
a power amplifier is provided for receiving the compensation gain to drive the power amplifier for amplifying an output signal and to obtain a new power amplification with the compensation gain;
wherein the compensation gain is calculated by the formula as:
Δ
⁢
⁢
G
⁡
(
T
,
t
)
=
-
A
·
(
T
-
T
0
)
-
B
·
(
Δ
⁢
⁢
T
Δ
⁢
⁢
t
)
a
,
wherein A and B represent coefficient respectively, T represents the current temperature of the temperature detecting and controlling integration device C, T0 is the comparison reference temperature, and ΔT/Δt represents the temperature change rate.

39 more elements

Dependencies are inferred from the claim text.

Temperature detecting and controlling integration device and the temperature controlling method applied for micro speaker

Life of this patent

Temperature detecting and controlling integration device and the temperature controlling method applied for micro speaker

Life of this patent

Abstract

Claims12