Abstract:
The present invention relates to a bias stabilizing circuit for a field effect transistor formed of a compound semiconductor comprising: a bias circuit in which one output electrode of a bipolar transistor (Q100, Q120, Q130, Q140) which is applied at its base with a bias voltage is connected through a first resistor (R103, R123, R132, R143) to a power supply (+B) and the other output electrode thereof is grounded through a second resistor (R104, R124, R133, R144); and a field effect transistor (102, 122, 132, 142) formed of a compound semiconductor biased by said bias circuit, wherein one output electrode (100D, 120D, 130D, 140D) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to one output electrode of said field effect transistor (102, 122, 132, 142) and the other output electrode (100G, 120G, 130G, 140G) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to a gate of said field effect transistor (102, 122, 132, 142).
Abstract:
The present invention relates to a bias stabilizing circuit for a field effect transistor formed of a compound semiconductor comprising: a bias circuit in which one output electrode of a bipolar transistor (Q100, Q120, Q130, Q140) which is applied at its base with a bias voltage is connected through a first resistor (R103, R123, R132, R143) to a power supply (+B) and the other output electrode thereof is grounded through a second resistor (R104, R124, R133, R144); and a field effect transistor (102, 122, 132, 142) formed of a compound semiconductor biased by said bias circuit, wherein one output electrode (100D, 120D, 130D, 140D) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to one output electrode of said field effect transistor (102, 122, 132, 142) and the other output electrode (100G, 120G, 130G, 140G) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to a gate of said field effect transistor (102, 122, 132, 142).
Abstract:
The present invention relates to a bias stabilizing circuit for a field effect transistor formed of a compound semiconductor comprising: a bias circuit in which one output electrode of a bipolar transistor (Q100, Q120, Q130, Q140) which is applied at its base with a bias voltage is connected through a first resistor (R103, R123, R132, R143) to a power supply (+B) and the other output electrode thereof is grounded through a second resistor (R104, R124, R133, R144); and a field effect transistor (102, 122, 132, 142) formed of a compound semiconductor biased by said bias circuit, wherein one output electrode (100D, 120D, 130D, 140D) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to one output electrode of said field effect transistor (102, 122, 132, 142) and the other output electrode (100G, 120G, 130G, 140G) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to a gate of said field effect transistor (102, 122, 132, 142).
Abstract:
The present invention relates to a bias stabilizing circuit for a field effect transistor formed of a compound semiconductor comprising: a bias circuit in which one output electrode of a bipolar transistor (Q100, Q120, Q130, Q140) which is applied at its base with a bias voltage is connected through a first resistor (R103, R123, R132, R143) to a power supply (+B) and the other output electrode thereof is grounded through a second resistor (R104, R124, R133, R144); and a field effect transistor (102, 122, 132, 142) formed of a compound semiconductor biased by said bias circuit, wherein one output electrode (100D, 120D, 130D, 140D) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to one output electrode of said field effect transistor (102, 122, 132, 142) and the other output electrode (100G, 120G, 130G, 140G) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to a gate of said field effect transistor (102, 122, 132, 142).
Abstract:
The present invention relates to a bias stabilizing circuit for a field effect transistor formed of a compound semiconductor comprising: a bias circuit in which one output electrode of a bipolar transistor (Q100, Q120, Q130, Q140) which is applied at its base with a bias voltage is connected through a first resistor (R103, R123, R132, R143) to a power supply (+B) and the other output electrode thereof is grounded through a second resistor (R104, R124, R133, R144); and a field effect transistor (102, 122, 132, 142) formed of a compound semiconductor biased by said bias circuit, wherein one output electrode (100D, 120D, 130D, 140D) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to one output electrode of said field effect transistor (102, 122, 132, 142) and the other output electrode (100G, 120G, 130G, 140G) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to a gate of said field effect transistor (102, 122, 132, 142).
Abstract:
The present invention relates to a bias stabilizing circuit for a field effect transistor formed of a compound semiconductor comprising: a bias circuit in which one output electrode of a bipolar transistor (Q100, Q120, Q130, Q140) which is applied at its base with a bias voltage is connected through a first resistor (R103, R123, R132, R143) to a power supply (+B) and the other output electrode thereof is grounded through a second resistor (R104, R124, R133, R144); and a field effect transistor (102, 122, 132, 142) formed of a compound semiconductor biased by said bias circuit, wherein one output electrode (100D, 120D, 130D, 140D) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to one output electrode of said field effect transistor (102, 122, 132, 142) and the other output electrode (100G, 120G, 130G, 140G) of said bipolar transistor (Q100, Q120, Q130, Q140) is connected to a gate of said field effect transistor (102, 122, 132, 142).
Abstract:
PROBLEM TO BE SOLVED: To enable a host apparatus to treat a state of radio connection with another device via a radio communication interface as a state of an external storage device. SOLUTION: A radio communication device includes: a host connection interface which is connected to a host apparatus and receives commands input from the host apparatus; a radio communication interface which performs radio communication with another radio communication device; and a control unit which controls operation of the host connection interface and the radio communication interface. The control unit controls the host connection interface to output device information indicating that the device is a peripheral device for accessing a storage medium to the host apparatus, in response to a command indicating inquiry about information regarding the device. COPYRIGHT: (C)2011,JPO&INPIT