Abstract: Tape-feeder setting work apparatus (40), which is used when an operator performs a work of setting a component supply tape wound on tape reel (12), in tape feeder (10), includes feeder set base (41) configured to hold the tape feeder in the setting work of the component supply tape, power supply section (47) configured to supply a power to tape feeding device (29) inside the tape feeder, and operation section (51) configured to allow the operator to operate the tape feeding device inside the tape feeder. When a work of setting a tip portion of the component supply tape by pulling out the tip portion from the tape reel set in the tape feeder held by the feeder set base is performed, the operator operates the operation section of the tape-feeder setting work apparatus to operate a tape feeding operation of the tape feeding device inside the tape feeder, and feeds the tip portion of the component supply tape pulled out from the tape reel to a component pickup position of the tape feeder.

Abstract: A tape feeder that feeds a carrier tape constituted of a bottom tape accommodating multiple components and a cover tape adhered to the bottom tape to supply the components includes a peeling section configured to peel the cover tape from the bottom tape at a position in front of a supply position of the component, a tension applying section configured to pull the cover tape into a predetermined location by driving a motor to collect the cover tape peeled from the bottom tape, and a holding section configured to hold the cover tape between the peeling section and the tension applying section when a power supply of the tape feeder is turned off and to release the holding of the cover tape when the power supply of the tape feeder is turned on.

Abstract: A tape guide includes a guide section to guide the carrier tape, the carrier tape including the base tape provided with the component storage section for storing the electronic component and the cover tape provided on a surface of the base tape to close the component storage section, and a component exposing section having a tongue portion inserted between the base tape and the cover tape during conveyance of the carrier tape guided by the guide section to expose the electronic component in the component storage section. The tongue portion moves up and down so that a distal end portion of the tongue portion is movable between a first height position at which the distal end portion can enter between the base tape and the cover tape and a second height position higher than the first height position.

Abstract: A component mounting machine including a component supply device to supply a component to a supply position; a component transfer device to use a component mounting tool to pick up the component from the supply position and mount the component on a board; a component detecting section to detect whether the component is present at the supply position before or while the component is being picked up by the component mounting tool; a holding detecting section to detect whether the component mounting tool is holding the component following pickup; and a remaining detecting section to detect whether the component remains at the supply position in a case in which it is detected by the holding detecting section that the component is not being held by the component mounting tool; and a dropped determining section to determine whether the component has dropped.

Abstract: A component mounting machine including a component supply device to supply a component to a supply position; a component transfer device to pick up the component from the supply position and mount the component on a board; a component detecting section to detect whether the component is present at the supply position before or while the component is being picked up by the component mounting tool; a holding detecting section to detect whether the component mounting tool is holding the component following pickup; and a retry performing section to determine whether to perform a retry operation of attempting to pick up the component again using the component mounting tool based on a detection result of the component detecting section and a detection result of the holding detecting section, and to perform the retry operation in accordance with a result of the determining of whether to perform the retry operation.

Abstract: A tape-feeder setting work apparatus includes feeder set base to hold the tape feeder in the setting work of the component supply tape, power supply section to supply a power to tape feeding device inside the tape feeder, and operation section configured to allow the operator to operate the tape feeding device inside the tape feeder. When a work of setting a tip portion of the component supply tape by pulling out the tip portion from the tape reel set in the tape feeder held by the feeder set base is performed, the operator operates the operation section of the tape-feeder setting work apparatus to operate a tape feeding operation of the tape feeding device inside the tape feeder, and feeds the tip portion of the component supply tape pulled out from the tape reel to a component pickup position of the tape feeder.

Abstract: A component mounting machine including a component supply device to supply a component to a supply position; a component transfer device to pick up the component from the supply position and mount the component on a board; a component detecting section to detect whether the component is present at the supply position before or while the component is being picked up by the component mounting tool; a holding detecting section to detect whether the component mounting tool is holding the component following pickup; and a retry performing section to determine whether to perform a retry operation of attempting to pick up the component again using the component mounting tool based on a detection result of the component detecting section and a detection result of the holding detecting section, and to perform the retry operation in accordance with a result of the determining of whether to perform the retry operation.

Abstract: A component mounting machine including a component supply device to supply a component to a supply position; a component transfer device to use a component mounting tool to pick up the component from the supply position and mount the component on a board; a component detecting section to detect whether the component is present at the supply position before or while the component is being picked up by the component mounting tool; a holding detecting section to detect whether the component mounting tool is holding the component following pickup; and a remaining detecting section to detect whether the component remains at the supply position in a case in which it is detected by the holding detecting section that the component is not being held by the component mounting tool; and a dropped determining section to determine whether the component has dropped.

Abstract: There is disclosed a bias circuit of a bipolar transistor for the high frequency power amplification, and the bias circuit comprises a bipolar transistor for the temperature compensation, a resistor for the temperature compensation connected to a collector thereof, a field effect transistor, and a source resistor connected to a source thereof. The bias circuit comprises a two stage transistor circuit in which a connection point between the bipolar transistor and the resistor for the temperature compensation is connected to a gate of the field effect transistor, and an output voltage is taken out from a connection point between the source of the field effect transistor and the source resistor. In this bias circuit, the thermal runaway resulting from a temperature rise can be prevented, and a large high frequency output can be obtained in a non-linear operation region of the high frequency input power—output power characteristic.

Abstract: There is disclosed a bias circuit of a bipolar transistor for the high frequency power amplification, and the bias circuit comprises a bipolar transistor for the temperature compensation, a resistor for the temperature compensation connected to a collector thereof, a field effect transistor, and a source resistor connected to a source thereof. The bias circuit comprises a two stage transistor circuit in which a connection point between the bipolar transistor and the resistor for the temperature compensation is connected to a gate of the field effect transistor, and an output voltage is taken out from a connection point between the source of the field effect transistor and the source resistor. In this bias circuit, the thermal runaway resulting from a temperature rise can be prevented, and a large high frequency output can be obtained in a non-linear operation region of the high frequency input power-output power characteristic.