| 摘要 |
<p>A high-output amplifier (1), having a high gain, (2) having a high efficiency, (3) less affected by temperature changes, (4) operative linearly in output levels over a wide dynamic range and (5) using a control voltage, comprises a transistor amplifier, and a bias circuit having first and second bias circuits. A first transistor provided in the first bias circuit has a first terminal and a control terminal that are short-circuited and connected to a control source as a first high-voltage-side source and to a control circuit of the transistor amplifier, and a second terminal connected to a low-voltage-side source. A second transistor provided in the second bias circuit has a control terminal connected to the control source, a first terminal connected to the second high-voltage-side source, and a second terminal connected to the control terminal of the transistor amplifier. <IMAGE></p> |
