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US 6,603,353 B2Granted
Switching power amplifier
AssigneeSony Corporation
InventorMasaomi Ishida
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AssigneeSony Corporation
InventorMasaomi Ishida
Estimating the term…
A switching power amplifier including a series circuit of first and second switching elements and a series circuit of third and fourth switching elements, wherein a load is connected between a junction between the first and second switching elements and a junction between the third and fourth switching elements and in which the first, second, third, and fourth switching elements are turned on and off to drive the load; the switching power amplifier includes a current detecting device for detecting respective currents of the first, second, third, and fourth switching elements; and the first, second, third, and fourth switching elements are turned off when the current detecting device detects an abnormal current. The switching power amplifier is able to protect an audio device such as a speaker from an excess current without using a connection switch.
A switching power amplifier including first and second switching elements connected in series, in which a load is connected to a junction between said first and said second switching elements and in which said first and said second switching elements are turned on and turned off to drive said load, said amplifier comprising:
A switching power amplifier including first and second switching elements connected in series, in which a load is connected to a junction between said first and said second switching elements and in which said first and said second switching elements are turned on and turned off to drive said load, said amplifier comprising:
A switching power amplifier including first and second switching elements connected in series and third and fourth switching elements connected in series in which a load is connected between a junction of said first and said second switching elements and a junction of said third and said fourth switching elements and in which said first, said second, said third, and said fourth switching elements are turned on and turned off to drive said load, said amplifier comprising:
A switching power amplifier including first and second switching elements connected in series and third and fourth switching elements connected in series, in which a load is connected between a junction of said first and said second switching elements and a junction of said third and said fourth switching elements and in which said first switching element, said second switching element, said third switching element, and said fourth switching element are turned on and turned off to drive said load, said amplifier comprising:
Dependencies are inferred from the claim text.