Electronic device and control method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-cheol LEE, Byung-soo KIM, Joo-moon YOUN, Kee-yeong CHO
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Abstract
An electronic device includes an amplifier which is configured to amplify a sound signal and includes a vacuum tube including a heater configured to heat the vacuum tube; a voltage supply which is configured to supply a first voltage and a second voltage which is higher than the first voltage; and a controller which is configured to control the voltage supply to supply the second voltage to the heater in response to supply of a drive voltage to the amplifier being started and to supply the first voltage to the heater if the vacuum tube reaches a predetermined temperature.
Claims10
An electronic device comprising:
- an amplifier which is configured to amplify a sound signal and comprises a vacuum tube comprising a heater configured to emit heat to heat the vacuum tube;
- a voltage supply which is configured to supply a first voltage and a second voltage which is higher than the first voltage;
- and
- a controller which is configured to control the voltage supply to supply the second voltage to the heater in response to supply of a drive voltage to the amplifier being started and control the voltage supply to supply the first voltage to the heater in response to a temperature of the vacuum tube reaching a predetermined temperature.
A control method of an electronic device, the control comprising:
- supplying a drive voltage to an amplifier which comprises a vacuum tube comprising a heater configured to heat the vacuum tube;
- supplying a second voltage, that is higher than a first voltage, to the heater of the vacuum tube in response to the drive voltage being supplied to the amplifier;
- and
- supplying the first voltage to the heater in response to the vacuum tube reaching a predetermined temperature.
An electronic device comprising:
- an amplifier which is configured to amplify a sound signal and comprises a vacuum tube comprising a heater configured to emit heat to heat the vacuum tube;
- a voltage supply which is configured to supply a first voltage and a second voltage which is higher than the first voltage;
- and
- a controller which is configured to control the voltage supply to selectively supply one of the first voltage and the second voltage to the heater based on supply of a drive voltage to the amplifier and a temperature of the vacuum tube.
Dependencies are inferred from the claim text.