Abstract: A stepping motor control device includes a driving unit that drives a stepping motor including a rotor that rotates a hand and a coil that generates a magnetic flux for rotating the rotor, a control unit that outputs, to the driving unit, a driving pulse for rotating the rotor and a swinging pulse for swinging the rotor, a voltage detecting unit that detects an induced voltage generated in the coil when the rotor vibrates, and a determining unit that determines, based on a result of the detection of the voltage detecting unit, a mechanical load received by the rotor.

Abstract: A motor driving apparatus including a driving circuit for supplying a first pulse with which a first coil included in a two-phase stepping motor generates a first magnetic flux, a second pulse with which a second coil included in the stepping motor generates a second magnetic flux opposite to the first magnetic flux, a third pulse with which the first coil generates the second magnetic flux, and a fourth pulse with which the second coil generates the first magnetic flux, to the stepping motor. The driving circuit supplies the second pulse, the third pulse, and the fourth pulse in this order to the stepping motor in a state of being stopped to start the stepping motor, and supplies the first pulse, the second pulse, the third pulse, and the fourth pulse in this order to the stepping motor after starting to continuously drive the stepping motor.

Abstract: A stepping motor control device includes a driving unit that drives a stepping motor including a rotor that rotates a hand and a coil that generates a magnetic flux for rotating the rotor, a control unit that outputs, to the driving unit, a driving pulse for rotating the rotor and a swinging pulse for swinging the rotor, a voltage detecting unit that detects an induced voltage generated in the coil when the rotor vibrates, and a determining unit that determines, based on a result of the detection of the voltage detecting unit, a mechanical load received by the rotor.

Abstract: A timepiece includes a stepping motor having a rotor and a coil, and a drive circuit that applies a first drive pulse having a stable stationary position at a rotor rotation angle of 90 degrees or less from a reference position and a second drive pulse having the stable stationary position at a rotor rotation angle of 90 degrees or more from the reference position, as a pulse for driving the rotor, to the coil. When a period during which the pulse is not applied to the coil is assumed as a waiting period, the drive circuit generates the waiting period after a first application of the second drive pulse after an application of the pulse to the coil is started and rotates the rotor by one or more turns without passing through the waiting period at at least one predetermined timing after the waiting period.

Abstract: A motor driving apparatus is a pulse generation circuit applying a drive pulse for rotating a rotor to a two stepping motor including the rotor magnetized in two poles and a stator in which a two-phase coil is wound around a yoke. The drive pulse is constituted of a drive pulse P1 and a drive pulse P2. The pulse generation circuit applies the drive pulse P1 having a stable stationary position at which a rotor rotation angle from a reference position is 90 degrees or less and applies the drive pulse P2 having a stable stationary position at which the rotor rotation angle from the reference position is 90 degrees or more continuously to the application of the drive pulse P1.

Abstract: A motor driving apparatus including a driving circuit for supplying a first pulse with which a first coil included in a two-phase stepping motor generates a first magnetic flux, a second pulse with which a second coil included in the stepping motor generates a second magnetic flux opposite to the first magnetic flux, a third pulse with which the first coil generates the second magnetic flux, and a fourth pulse with which the second coil generates the first magnetic flux, to the stepping motor. The driving circuit supplies the second pulse, the third pulse, and the fourth pulse in this order to the stepping motor in a state of being stopped to start the stepping motor, and supplies the first pulse, the second pulse, the third pulse, and the fourth pulse in this order to the stepping motor after starting to continuously drive the stepping motor.

Abstract: A timepiece includes a stepping motor having a rotor and a coil, and a drive circuit that applies a first drive pulse having a stable stationary position at a rotor rotation angle of 90 degrees or less from a reference position and a second drive pulse having the stable stationary position at a rotor rotation angle of 90 degrees or more from the reference position, as a pulse for driving the rotor, to the coil. When a period during which the pulse is not applied to the coil is assumed as a waiting period, the drive circuit generates the waiting period after a first application of the second drive pulse after an application of the pulse to the coil is started and rotates the rotor by one or more turns without passing through the waiting period at at least one predetermined timing after the waiting period.

Abstract: An objective of the present invention is to realize a voltage detection function in a power supply device having a wireless communication function. A power supply device 1 is attached in an external load device 11 alone or in series with another external power supply device 13. A cell holder 2 holds an internal cell in the housing 18, and includes an inner positive terminal and an inner negative terminal that are brought into contact with a positive terminal and a negative terminal of the held internal cell. An outer positive terminal 3 connected to the inner positive terminal is provided on the housing, and an outer negative terminal 4 connected to the inner negative terminal is provided on the housing. An output transistor 32 is interposed at least one of between the inner negative terminal and the outer negative terminal and between the inner positive terminal and the outer positive terminal. An RFIC 37 generates a control signal of the output transistor in accordance with a signal received via an antenna.

Abstract: An objective of the present invention is to realize a voltage detection function in a cell type power supply device having a wireless communication function. A cell type power supply device 1 is attached to a cell box 12 of an external load device 11 alone or in series with another external cell 13. A housing 18 has a shape and dimensions based on a cell standard, and front and rear terminals of the external cell held in a cell holder 2 in the housing 18 are to be in contact with an inner positive terminal 5 and an inner negative terminal 6. An outer positive terminal 3 connected to the inner positive terminal is provided on a front end surface of the housing, and an outer negative terminal 4 connected to the inner negative terminal is provided on a rear end surface of the housing. An output transistor 32 is interposed at least one of between the inner negative terminal and the outer negative terminal and between the inner positive terminal and the outer positive terminal.

Abstract: A motor driving apparatus is a pulse generation circuit applying a drive pulse for rotating a rotor to a two stepping motor including the rotor magnetized in two poles and a stator in which a two-phase coil is wound around a yoke. The drive pulse is constituted of a drive pulse P1 and a drive pulse P2. The pulse generation circuit applies the drive pulse P1 having a stable stationary position at which a rotor rotation angle from a reference position is 90 degrees or less and applies the drive pulse P2 having a stable stationary position at which the rotor rotation angle from the reference position is 90 degrees or more continuously to the application of the drive pulse P1.

Abstract: A cell type power supply device includes: a housing having a shape and dimensions based on a cell standard; a cell holder including an inner positive terminal and an inner negative terminal that are brought into contact with front and rear terminals of the external cell held in the housing; an outer positive terminal connected to the inner positive terminal; an outer negative terminal connected to the inner negative terminal; an output transistor interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal; a control circuit that generates a control signal of the output transistor in accordance with a signal received via an antenna; and a detection resister interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal in parallel with the output transistor to change a voltage of the outer negative terminal or the outer positive termina

Abstract: A proposed electronic apparatus is capable of charging a secondary battery and performing data communication using a solar cell while suppressing effects of ambient light even when the intensity of light radiated to the solar cell is low. The electronic apparatus includes a control circuit 202 and a resistance 205. The control circuit 202 receives data based on an output voltage of a solar cell 201. The resistance 205 is connected between electrodes of the solar cell 201. The control circuit 202 controls a resistance value of the resistance 205 based on whether during an operation of receiving data or not.

Abstract: A cell type power supply device includes: a housing having a shape and dimensions based on a cell standard; a cell holder including an inner positive terminal and an inner negative terminal that are brought into contact with front and rear terminals of the external cell held in the housing; an outer positive terminal connected to the inner positive terminal; an outer negative terminal connected to the inner negative terminal; an output transistor interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal; a control circuit that generates a control signal of the output transistor in accordance with a signal received via an antenna; and a detection resister interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal in parallel with the output transistor to change a voltage of the outer negative terminal or the outer positive termina

Abstract: An objective of the present invention is to realize a voltage detection function in a cell type power supply device having a wireless communication function. A cell type power supply device 1 is attached to a cell box 12 of an external load device 11 alone or in series with another external cell 13. A housing 18 has a shape and dimensions based on a cell standard, and front and rear terminals of the external cell held in a cell holder 2 in the housing 18 are to be in contact with an inner positive terminal 5 and an inner negative terminal 6. An outer positive terminal 3 connected to the inner positive terminal is provided on a front end surface of the housing, and an outer negative terminal 4 connected to the inner negative terminal is provided on a rear end surface of the housing. An output transistor 32 is interposed at least one of between the inner negative terminal and the outer negative terminal and between the inner positive terminal and the outer positive terminal.

Abstract: A cell type power supply device includes: a housing having a shape and dimensions based on a cell standard; a cell holder including an inner positive terminal and an inner negative terminal that are brought into contact with front and rear terminals of the external cell held in the housing; an outer positive terminal connected to the inner positive terminal; an outer negative terminal connected to the inner negative terminal; an output transistor interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal; a control circuit that generates a control signal of the output transistor in accordance with a signal received via an antenna; and a detection resister interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal in parallel with the output transistor to change a voltage of the outer negative terminal or the outer positive termina

Abstract: A cell type power supply device includes a housing having a shape and dimensions based on a cell standard such as to be attachable with a cell box of an external load device. A cell holder that holds an external cell in the housing includes an inner positive terminal and an inner negative terminal that are brought into contact with front and rear terminals of the held external cell. An outer positive terminal connected to the inner positive terminal is provided on a front end surface of the housing, and an outer negative terminal connected to the inner negative terminal is provided on a rear end surface of the housing. An output transistor is interposed between the inner negative terminal and the outer negative terminal. An RFIC generates a control signal of the output transistor in accordance with a signal received via an antenna. A detection resistance provided in series to the output transistor converts current flowing through the output transistor into voltage.

Abstract: A cell type power supply device includes: a housing having a shape and dimensions based on a cell standard; a cell holder including an inner positive terminal and an inner negative terminal that are brought into contact with front and rear terminals of the external cell held in the housing; an outer positive terminal connected to the inner positive terminal; an outer negative terminal connected to the inner negative terminal; an output transistor interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal; a control circuit that generates a control signal of the output transistor in accordance with a signal received via an antenna; and a detection resister interposed between the inner negative terminal and the outer negative terminal or between the inner positive terminal and the outer positive terminal in parallel with the output transistor to change a voltage of the outer negative terminal or the outer positive termina

Abstract: A proposed electronic apparatus is capable of charging a secondary battery and performing data communication using a solar cell while suppressing effects of ambient light even when the intensity of light radiated to the solar cell is low. The electronic apparatus includes a control circuit 202 and a resistance 205. The control circuit 202 receives data based on an output voltage of a solar cell 201. The resistance 205 is connected between electrodes of the solar cell 201. The control circuit 202 controls a resistance value of the resistance 205 based on whether during an operation of receiving data or not.

Abstract: An electronic apparatus includes an outer case, and a piezoelectric element mounted to an inner surface of the outer case and configured to impart vibration to the outer case due to deformation in correspondence with an applied voltage and to generate a voltage corresponding to deformation due to a shock imparted to the outer case. An induction element applies an increased voltage to the piezoelectric element, a first switch performs control as to whether or not to supply an electric current from a power source to the induction element, a second switch effects connection or disconnection between the induction element and the piezoelectric element, and a shock detection unit to detects a shock imparted to the outer case based on the voltage generated in the piezoelectric element.

Abstract: In an electronic apparatus equipped with a mechanism for generating a sound and an oscillation, it is possible to detect an imparted shock with high sensitivity. The electronic apparatus includes: an oscillation unit; a piezoelectric element configured to impart an oscillation due to deformation in correspondence with an applied voltage to the oscillation unit, generating a voltage corresponding to deformation due to a shock imparted to the oscillation unit; an induction element for applying an increased voltage to the piezoelectric element; a first switch performing control as to whether or not to supply an electric current from a power source to the induction element; a second switch for effecting connection or disconnection between the induction element and the piezoelectric element; and a shock detection unit configured to detect a shock imparted to the oscillation unit based on the voltage generated in the piezoelectric element.