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US 10,862,437 B2Granted
Amplification device
OwnerMakoto Yoshidainventor
Life of this patent
Estimating the term…
Abstract
An amplification device comprising: a push pull circuit which amplifies an input signal; a diamond buffer circuit to which the signal which is amplified by the push pull circuit is input; and a current mirror circuit which is connected to a power supply and the diamond buffer circuit and is connected to a retraction current terminal of the push pull circuit.
Claims4
An amplification device comprising:
- a push pull circuit which amplifies an input signal;
- a diamond buffer circuit to which the signal which is amplified by the push pull circuit is input;
- and
- a current mirror circuit which is connected to a power supply and the diamond buffer circuit and is connected to a retraction current terminal of the push pull circuit,
- wherein the current mirror circuit has
- a first current mirror circuit which is connected to a positive side power supply and the diamond buffer circuit and is connected to a positive side retraction current terminal of the push pull circuit and
- a second current mirror circuit which is connected to a negative side power supply and the diamond buffer circuit and is connected to a negative side retraction current terminal of the push pull circuit, and
- the diamond buffer circuit has
- an npn type first bipolar transistor in which a collector is connected to the positive side power supply, in which an emitter is connected to a load via a first resistor, and in which a base is connected to an emitter of a third bipolar transistor via a fourth resistor,
- a pnp type second bipolar transistor in which a collector is connected to the negative side power supply, in which an emitter is connected to the load via a second resistor, and in which a base is connected to an emitter of a fourth bipolar transistor via a fifth resistor,
- the pnp type third bipolar transistor in which a collector is connected to the negative side power supply, in which an emitter is connected to the base of the first bipolar transistor and the first current mirror circuit via the fourth resistor, and in which a base is connected to an output of the push pull circuit, and
- the npn type fourth bipolar transistor in which a collector is connected to the positive side power supply, in which an emitter is connected to the base of the second bipolar transistor and the second current mirror circuit via the fifth resistor, and in which a base is connected to the output of the push pull circuit.
9 more elements
An amplification device comprising:
- a diamond buffer circuit to which the signal which is amplified by the push pull circuit is input;
- and
- a current mirror circuit which is connected to a power supply and the diamond buffer circuit and is connected to a retraction current terminal of the push pull circuit,
- wherein the current mirror circuit has
- a first current mirror circuit which is connected to a positive side power supply and the diamond buffer circuit and is connected to a positive side retraction current terminal of the push pull circuit and
- a second current mirror circuit which is connected to a negative side power supply and the diamond buffer circuit and is connected to a negative side retraction current terminal of the push pull circuit, and
- the push pull circuit has
- an npn type ninth bipolar transistor in which a base is connected between a seventh resistor and a first diode, in which a collector is the positive side retraction current terminal which is connected to the first current mirror circuit, and in which an emitter is connected to an input of the diamond buffer circuit via a ninth resistor,
- a pnp type tenth bipolar transistor in which a base is connected between an eighth resistor and a second diode, in which a collector is the negative side retraction current terminal which is connected to the second current mirror circuit, and in which an emitter is connected to an input of the diamond buffer circuit via a tenth resistor,
- a sixteenth resistor which is connected between the first diode and an input, and
- a seventeenth resistor which is connected between the second diode and the input.
8 more elements
Dependencies are inferred from the claim text.