Abstract: A switching power supply device has: a switching output stage configured to generate from an input voltage an output voltage to feed it to a load; a controller IC configured to control the switching output stage such that a feedback voltage applied to an output feedback terminal of the controller IC remains equal to a predetermined reference voltage; a first resistor connected between the output terminal of the output voltage and the output feedback terminal; a second resistor connected between the output feedback terminal and a ground terminal; a sense resistor configured to convert the output current passing between the load and the ground terminal into a sense voltage; and a first diode whose anode is connected to the application terminal of the sense voltage and whose cathode is connected to the output feedback terminal.

Abstract: A switching power supply device has: a switching output stage configured to generate from an input voltage an output voltage to feed it to a load; a controller IC configured to control the switching output stage such that a feedback voltage applied to an output feedback terminal of the controller IC remains equal to a predetermined reference voltage; a first resistor connected between the output terminal of the output voltage and the output feedback terminal; a second resistor connected between the output feedback terminal and a ground terminal; a sense resistor configured to convert the output current passing between the load and the ground terminal into a sense voltage; and a first diode whose anode is connected to the application terminal of the sense voltage and whose cathode is connected to the output feedback terminal.

Abstract: A counter switch is depressed every stroke so that such stroke number is added up and displayed on a display. After completion of a first hole, a hole switch is depressed to be switched to a counter for a second hole, so that the count value for the first hole is fixed and a stroke number of the second hole is counted by the counter for the second hole and displayed on a respective display. The total stroke number of the out course is added up in a counter therefor and displayed on a respective display, and the total stroke number from the first is added up in a respective counter to be displayed on a respective display. When nine holes are completed and a next hole switch is depressed, the counter is switched to that for adding up the total stroke number of the in course, so that the stroke numbers of the respective holes are added up by respective counters and displayed on respective displays.

Abstract: A data insertion device for a recording and reproducing apparatus, which is for example with a video tape recorder (VTR) or the like, which allows one to insert data into a video tape or like recording medium while maintaining the VTR in a playback mode. While sync signals from the VTR are disturbed in the event of insertion of the search data and others, as distinguished from ordinary video data, sync signals provided by sync signal output means which is independent of sync signals provided by the VTR are used as sync signals for the insertion of the search data and others.

Abstract: A video head mounting structure utilizes a supporting plate, preferably including a bimorph cell or piezo-electric element, which is provided with a head at its free end and with a generally U-shaped groove with its open side directed to a base end which is opposite to the free end.

Abstract: In one aspect of the present invention, there is provided a video tape recorder system capable of finding a desired frame by carrying out a retrieval operation in two steps, coarse and fine, in which video tape on which is recorded addresses indicating respective locations on the tape is advanced at high speed using the upper digits of the addresses for coarse retrieval and then the tape is advanced at a speed for reproduction operation using the lower digits of the addresses for fine retrieval. In another aspect of the present invention, there is provided a unique adapter which allows to carry out a dubbing operation between two 8 mm video units directly therethrough. In a further aspect of the present invention, there is provided a portable type video tape recorder system in which a VTR main body and a tuner are provided as separate entities and a commonly usable power supply unit may be mounted in either of the VTR main body or the tuner.