Abstract: A transfer film including: a support substrate; a heat seal layer; and an inorganic evaporated film in this order in a thickness direction, wherein the inorganic evaporated film is in contact with the heat seal layer, or the transfer film further includes an anchor coat layer between the inorganic evaporated film and the heat seal layer, and the inorganic evaporated film is in contact with the anchor coat layer.

Abstract: Disclosed herein is an optical receiver including: a light receiving element configured to have an anode and a cathode and generate a photocurrent dependent on received signal light; a current-voltage conversion circuit configured to be connected to the anode of the light receiving element and convert the photocurrent to a voltage signal; and a capacitive passive element configured to have a first electrode and a second electrode. The cathode of the light receiving element is connected to the first electrode of the capacitive passive element, and the second electrode of the capacitive passive element is connected to a reference potential of the current-voltage conversion circuit and the second electrode is not coupled to objects other than a reference potential terminal of the current-voltage conversion circuit.

Abstract: Disclosed herein is an optical receiver including: a light receiving element configured to have an anode and a cathode and generate a photocurrent dependent on received signal light; a current-voltage conversion circuit configured to be connected to the anode of the light receiving element and convert the photocurrent to a voltage signal; and a capacitive passive element configured to have a first electrode and a second electrode. The cathode of the light receiving element is connected to the first electrode of the capacitive passive element, and the second electrode of the capacitive passive element is connected to a reference potential of the current-voltage conversion circuit and the second electrode is not coupled to objects other than a reference potential terminal of the current-voltage conversion circuit.

Abstract: A negative output regulator circuit (24) is provided with clamp circuits CLP (X1, X2, Q1, Q2), which detect a current generated when the output of a negative voltage (VM) is stopped and fixing the voltage of an output end (T2) at a prescribed value. Generation of a positive voltage at an output terminal is suppressed without increasing chip size nor making the sequence complicated.

Abstract: A negative output regulator circuit (24) is provided with clamp circuits CLP (X1, X2, Q1, Q2), which detect a current generated when the output of a negative voltage (VM) is stopped and fixing the voltage of an output end (T2) at a prescribed value. Generation of a positive voltage at an output terminal is suppressed without increasing chip size nor making the sequence complicated.

Abstract: A power supply device includes a first transistor connected in series between an input terminal to which an input voltage is applied and an output terminal from which an output voltage is led out; a second transistor connected between the input terminal and the output terminal in parallel with the first transistor, and which is arranged to supply a portion of the output current to a load as a detection current; a control voltage production unit arranged to produce a control voltage of the first and second transistors so that the output voltage is maintained at a specified target value; a first constant current source arranged to produce a first constant current; a variable current source arranged to produce a variable current in accordance with the output voltage; a first resistor arranged to produce a reference voltage in accordance with a combined current of the first constant current and the variable current; a second constant current source arranged to produce a second constant current; a second resistor

Abstract: An electronic circuit includes a semiconductor device which has an internal circuit that uses a positive power supply voltage and a negative power supply voltage, and which controls the operation of the above-mentioned internal circuit by an external input. The semiconductor device includes an input signal detection circuit that operates using a voltage that is input into the external input, and a signal output circuit which outputs a signal that controls the negative power supply voltage applied to the internal circuit in accordance with an output of the input signal detection circuit. The circuit can switch a negative-side circuit on and off without depending on a positive power supply voltage and also without depending on the order of starting a positive power supply voltage and a negative power supply voltage.