A driving apparatus including: gate driving circuit to drive gates of a first semiconductor element and a second semiconductor element connected in series between a positive side power supply line and a negative side power supply line; a first timing generating circuit to generate a first timing signal when voltage applied to the second semiconductor element becomes reference voltage during a turn-off period of the first semiconductor element; and a first driving condition change circuit, wherein the gate driving circuit relaxes change in a charge amount of the gate of the first semiconductor element, according to the first timing signal.

A driving apparatus including: gate driving circuit to drive gates of a first semiconductor element and a second semiconductor element connected in series between a positive side power supply line and a negative side power supply line; a first timing generating circuit to generate a first timing signal when voltage applied to the second semiconductor element becomes reference voltage during a turn-off period of the first semiconductor element; and a first driving condition change circuit, wherein the gate driving circuit relaxes change in a charge amount of the gate of the first semiconductor element, according to the first timing signal.

An example system comprises: a power transistor comprising a gate, a first terminal, and a second terminal; a transistor comprising a gate, a first terminal, and a second terminal coupled to the gate of the power transistor; a capacitive divider coupled to the first terminal of the power transistor and the gate of the transistor; and a resistive divider coupled to the first terminal of the power transistor and the gate of the transistor.

Provided is a transmission device for transmitting and receiving data through a transmission channel. The transmission device includes a transmission circuit unit configured to transmit data to the transmission channel. When an overcurrent caused by a simultaneous transmission of data to the transmission channel is detected during data transmission, the transmission circuit unit increases an output resistance, which is a resistance value for an output to the transmission channel, to an resistance value corresponding to a characteristic of a facility equipment item that transmits data to the transmission channel at the same time as itself.

Provided is a transmission device for transmitting and receiving data through a transmission channel. The transmission device includes a transmission circuit unit configured to transmit data to the transmission channel. When an overcurrent caused by a simultaneous transmission of data to the transmission channel is detected during data transmission, the transmission circuit unit increases an output resistance, which is a resistance value for an output to the transmission channel, to an resistance value corresponding to a characteristic of a facility equipment item that transmits data to the transmission channel at the same time as itself.

Method of reducing simultaneous switching output (SSO) impact in a system through the use of signal integrity/power integrity (SI/PI) simulations for each channel in the system includes calculating a worst case scenario current for a channel of the system, and calculating a worst case channel skew for a channel of the system. Based on the worst case scenario current and the worst case channel skew, a switching current is determined for the system.

Method of reducing simultaneous switching output (SSO) impact in a system through the use of signal integrity/power integrity (SI/PI) simulations for each channel in the system includes calculating a worst case scenario current for a channel of the system, and calculating a worst case channel skew for a channel of the system. Based on the worst case scenario current and the worst case channel skew, a switching current is determined for the system.

A semiconductor device includes a plurality of first transistor cells and a plurality of second transistor cells that are electrically connected in parallel between a collector electrode and an emitter electrode. A gate voltage on each of the plurality of first transistor cells is controlled by a first gate interconnection. A gate voltage on each of the plurality of second transistor cells is controlled by a second gate interconnection. A drive circuit is configured to: apply an ON-voltage of the semiconductor device to each of the first and second gate interconnections when the semiconductor device is turned on; and after a lapse of a predetermined time period since start of application of the ON-voltage, apply an OFF-voltage of the semiconductor device to the second gate interconnection and apply an ON-voltage to the first gate interconnection.

A timer may include a power plug, an AC/DC transforming circuit, a relay circuit, a recharging circuit, and a control circuit that includes a relay output, a key input, and an LCD output. The timer may further include a 2.4V battery and a main body. In one embodiment, the key input includes a plurality of buttons. By pressing one or more of these buttons, signals can be transmitted into the key input of the control circuit. The timer may further include an LCD display and the information displayed thereon is transmitted from the LCD output of the control circuit. The power plug can be connected to an AC power source to bring in the power to the AC/DC transforming circuit to generate a 12V DC current that can be transmitted to the recharging circuit to charge the 2.4V battery, as well as providing power to the relay circuit.

A timer may include a power plug, an AC/DC transforming circuit, a relay circuit, a recharging circuit, and a control circuit that includes a relay output, a key input, and an LCD output. The timer may further include a 2.4V battery and a main body. In one embodiment, the key input includes a plurality of buttons. By pressing one or more of these buttons, signals can be transmitted into the key input of the control circuit. The timer may further include an LCD display and the information displayed thereon is transmitted from the LCD output of the control circuit. The power plug can be connected to an AC power source to bring in the power to the AC/DC transforming circuit to generate a 12V DC current that can be transmitted to the recharging circuit to charge the 2.4V battery, as well as providing power to the relay circuit.