Sony Semiconductor Solutions Corporation

Sony Corporation

Kenya Kondou

Masayuki Katakura

Masahiro Ichihashi

Kazumasa Nishimura

Toshio Suzuki

Nobuhiko Shigyo

Motoyasu Yano

Syou Mitsuishi

Makoto Aoki

Nobuo Nakamura

Ken Koseki

Daijiro Anai

Kouzi Tsukamoto

Haruhisa Naganokawa

Tetsuya Tashiro

Syouhei Taguchi

Boyang Hao

Provided is an amplifier that includes a first transistor including a gate terminal to which an applied input signal is input, where a current depending on the applied input signal flows through the first transistor. A gate terminal of a second transistor is connected to a load section, and a current depending on a change in a voltage of the drain terminal of the first transistor flows through the second transistor. A source terminal of the first transistor and a drain terminal of the second transistor are connected in common to a first resistance, and the current from the first transistor and the current from the second transistor flow through the first resistance. A third transistor supplies a current approximately equal to the current of the second transistor. The current supplied by the third transistor is output from an output end.

Amplifier

A charge pump circuit by which fundamental issues involved in the voltage feedback type charge pump circuit have been solved is realized. A power supply circuit includes a charge pump circuit, a feedback circuit feeding an output of the charge pump circuit back to an input of the charge pump circuit, a first current source causing a constant current to flow through the feedback circuit, a MOS transistor element interposed in a middle of the feedback circuit, a resistor element interposed at a position closer to the output of the charge pump circuit than the MOS transistor element in the feedback circuit, a bias circuit applying a constant voltage to a control terminal of the MOS transistor element, and a control section controlling a value of the constant current which the first current source flows through the feedback circuit.

Power supply circuit comprising a charge pump circuit and a feedback circuit for the charge pump circuit

An object of the present technology is to stably operate a power supply circuit. A charge switch is connected to a first terminal of a capacitor and charges the capacitor with an input voltage on the basis of a control signal inputted to a control terminal. A discharge switch is complementary with the charge switch, is connected to the first terminal of the capacitor, and discharges on the basis of the control signal inputted to the control terminal the voltage charged to the capacitor, thereby generating an output voltage. A charge control signal converting section converts a charge control signal that controls the charge into a control signal referenced to the input voltage and inputs the resulting control signal to the control terminal of the charge switch. A discharge control signal converting section converts a discharge control signal that controls the discharge into a control signal referenced to the output voltage and inputs the resulting control signal to the control terminal of the discharge switch. A pulse voltage supplying section supplies a pulse voltage to a second terminal. A control signal generating section exclusively generates the charge control signal and the discharge control signal and supplies the charge control signal and the discharge control signal.

Power supply circuit and power supply apparatus

There is provided a solid state imaging apparatus, including a plurality of line sensors including a plurality of pixels arrayed in a line, each of the pixels including an amplifier which amplifies a signal corresponding to a charge accumulated in a photoelectric transducer, and signal lines each for reading a signal of each pixel of the line sensors. The plurality of line sensors are discretely arranged, and the signal lines are gathered and wired along a region in which a circuit block including the line sensors is arranged.

Solid state imaging apparatus, electronic apparatus, and pixel reading method

Growing community of inventors

Fukuoka, Japan

Kenya Kondou