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US 11,670,272 B2Granted
Amplifier for music signal and method of outputting waveform of music signal
AssigneeRoland Corporation
InventorsMitsuo Shida, Yoshinobu Morimoto, Kosuke Takada
Life of this patent
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Abstract
An amplifier and a method of outputting a waveform of a music signal capable of outputting a waveform of a music signal exceeding a power supply voltage is provided. An amplifier includes a power supply, an input terminal for a music signal, an amplifying circuit which amplifies the music signal using the power supply, and a jumping-up circuit which is connected to an output end of the amplifying circuit and outputs a waveform exceeding a voltage value of the power supply.
Claims5
An amplifier comprising:
- a first power supply;
- a second power supply;
- an input terminal which receives a music signal;
- an amplifying circuit which amplifies the music signal using the power supply;
- and
- a circuit which is connected in series between an output end of the amplifying circuit and a speaker load, the circuit comprises:
- an inductor having one end connected to the output end of the amplifying circuit and another end connected to the speaker load;
- a first diode having an anode connected to the other end of the inductor;
- a second diode having a cathode connected to the other end of the inductor;
- a first capacitor having one end connected to a cathode of the first diode and another end connected to the first power supply;
- a second capacitor having one end connected to an anode of the second diode and another end connected to the second power supply;
- and
- a resistor having one end connected to the cathode of the first diode and another end connected to the anode of the second diode.
10 more elements
A method of outputting a waveform of a music signal, the method comprising:
- amplifying the music signal by an amplifying circuit using a first power supply and a second power supply;
- and
- outputting a waveform exceeding a voltage value of the power supply by a circuit connected in series between an output end of the amplifying circuit and a speaker load, wherein the circuit comprises:
- an inductor having one end connected to the output end of the amplifying circuit and another end connected to the speaker load;
- a first diode having an anode connected to the other end of the inductor;
- a second diode having a cathode connected to the other end of the inductor;
- a first capacitor having one end connected to a cathode of the first diode and another end connected to the first power supply;
- a second capacitor having one end connected to an anode of the second diode and another end connected to the second power supply;
- and
- a resistor having one end connected to the cathode of the first diode and another end connected to the anode of the second diode.
7 more elements
Dependencies are inferred from the claim text.