Abstract: There are provided a protection circuit and a gate driving circuit for a semiconductor switching device. The protection circuit for a semiconductor switching device includes an overcurrent determining unit operated according to a gate signal to determine whether a load current flowing through the semiconductor switching device controlling the load current is an overcurrent, a load open determining unit determining whether a load is open, on the basis of a detection value from a current detection unit detecting the load current, and an error detection unit generating a fault signal when it is determined that the overcurrent flows and the load is open, while the gate signal is in a turned on level of the semiconductor switching device.

Abstract: There is provided an apparatus for outputting a signal, including: a reference signal generating unit outputting a first temperature coefficient signal having a positive temperature coefficient and a second temperature coefficient signal having a negative temperature coefficient; and an output unit outputting an output signal having a plurality of temperature coefficients, based on the first temperature coefficient signal and the second temperature coefficient signal.

Abstract: A gate driver circuit may include a driving signal generating unit generating first and second control signals based on a data signal and a fault state signal and controlling gate detection, a driving inverter operating in response to the first and second control signals to generate a gate signal and providing the gate signal to a power switch element, and a soft turn-off/gate detecting unit operating in response to the second control signal, performing a soft turn-off in the case of a fault, and detecting the gate signal to provide a detected signal.

Abstract: There are provided a driving circuit, a driving module, a motor driving apparatus capable of adjusting a driving current driving a power semiconductor device, the driving circuit including a driving unit including a plurality of drivers and selecting a corresponding driver among the plurality of drivers according to a selection signal to determine a current level of a driving signal for driving a semiconductor device, a timing controlling unit detecting a phase shift time of the driving signal transferred to the semiconductor device and comparing the detected time with a preset reference time to control the phase shift time of the driving signal, and a driving controlling unit providing the selection signal for selecting a driver to be driven among the plurality of drivers of the driving unit according a control signal from the outside and a timing control signal of the timing controlling unit.

Abstract: There is provided an input buffer circuit having hysteresis characteristics. The input buffer circuit includes: a first operating unit performing a NOR operation on an input signal and a first signal; a second operating unit performing a NAND operation on the input signal and a second signal; and an inverting unit inverting outputs of the first and second operating units to generate a second signal and a first signal, respectively, wherein reference levels of the first and second operating units determining a high or low level of the input signal are set to be different.

Abstract: There are provided a noise filter circuit and an operating method thereof. A noise filter circuit includes a first delay circuit, and a second delay circuit connected to the first delay circuit in series, wherein the first delay circuit and the second delay circuit each include at least one inverter and at least one delay element for generating a predetermined delay, and the first delay circuit and the second delay circuit have different filtering characteristics.

Abstract: There are provided a gate driver circuit and an operating method thereof. The gate driver circuit includes an output signal generating unit including a plurality of switch devices generating output signals, a selecting circuit unit generating a plurality of control signals according to a set selection state, and a plurality of driving circuit units receiving a reference signal and the plurality of control signals to control the plurality of switch devices, wherein the plurality of switch devices determine a level of the output signal by the plurality of control signal.

Abstract: There is provided a driving circuit including: a signal delay unit including a first delay unit delaying a high level input signal in a case in which an input signal has a high level, and a second delay unit delaying a low level input signal when the input signal has a low level; a signal output unit including first and second transistors connected to the first and second delay units and performing a switching operation under the control of the first and second delay units, respectively; and an output holding unit maintaining an output voltage at a level equal to that immediately before the first and second transistors are turned off, when the first and second transistors are simultaneously turned off.

Abstract: There are provided a gate driver circuit and an operating method thereof.

Abstract: There are provided a noise filter circuit and an operating method thereof. A noise filter circuit includes a first delay circuit, and a second delay circuit connected to the first delay circuit in series, wherein the first delay circuit and the second delay circuit each include at least one inverter and at least one delay element for generating a predetermined delay, and the first delay circuit and the second delay circuit have different filtering characteristics.

Abstract: There are provided a driving circuit, a driving module, a motor driving apparatus capable of adjusting a driving current driving a power semiconductor device, the driving circuit including a driving unit including a plurality of drivers and selecting a corresponding driver among the plurality of drivers according to a selection signal to determine a current level of a driving signal for driving a semiconductor device, a timing controlling unit detecting a phase shift time of the driving signal transferred to the semiconductor device and comparing the detected time with a preset reference time to control the phase shift time of the driving signal, and a driving controlling unit providing the selection signal for selecting a driver to be driven among the plurality of drivers of the driving unit according a control signal from the outside and a timing control signal of the timing controlling unit.

Abstract: There are provided a protection circuit and a gate driving circuit for a semiconductor switching device. The protection circuit for a semiconductor switching device includes an overcurrent determining unit operated according to a gate signal to determine whether a load current flowing through the semiconductor switching device controlling the load current is an overcurrent, a load open determining unit determining whether a load is open, on the basis of a detection value from a current detection unit detecting the load current, and an error detection unit generating a fault signal when it is determined that the overcurrent flows and the load is open, while the gate signal is in a turned on level of the semiconductor switching device.

Abstract: There is provided an input buffer circuit having hysteresis characteristics. The input buffer circuit includes: a first operating unit performing a NOR operation on an input signal and a first signal; a second operating unit performing a NAND operation on the input signal and a second signal; and an inverting unit inverting outputs of the first and second operating units to generate a second signal and a first signal, respectively, wherein reference levels of the first and second operating units determining a high or low level of the input signal are set to be different.

Abstract: There is provided an apparatus for outputting a signal, including: a reference signal generating unit outputting a first temperature coefficient signal having a positive temperature coefficient and a second temperature coefficient signal having a negative temperature coefficient; and an output unit outputting an output signal having a plurality of temperature coefficients, based on the first temperature coefficient signal and the second temperature coefficient signal.

Abstract: There are provided a level shifter circuit and a gate driver circuit including the same. The level shifter circuit includes: a plurality of switching devices connected to a predetermined DC power supply through a resistor and operated by different driving signals; a gain conversion unit operated by first signals output from the plurality of switching devices, respectively, and generating second signals having a level within a predetermined range of the first signals; and a noise removal unit connected to at least one output terminal among the plurality of switching devices to prevent malfunctioning of the gain conversion unit, wherein the gain conversion unit inputs the second signals to a high side gate driver circuit through an inverter circuit.

Abstract: There are provided a level shifter circuit and a gate driver circuit including the same. The level shifter circuit includes: a plurality of switching devices connected to a predetermined DC power supply through a resistor and operated by different driving signals; a gain conversion unit operated by first signals output from the plurality of switching devices, respectively, and generating second signals having a level within a predetermined range of the first signals; and a noise removal unit connected to at least one output terminal among the plurality of switching devices to prevent malfunctioning of the gain conversion unit, wherein the gain conversion unit inputs the second signals to a high side gate driver circuit through an inverter circuit.

Abstract: A LED driving circuit that may control current flow into an LED on a current path according to the amount of light sensed from the LED. An LED driving circuit for driving at least one LED may include at least one of: An optical sensor for receiving light emitted from the LED and generating a feedback signal having a level corresponding to an amount of the received light. A current regulator provided on a path through which current of the LED flows for regulating an amount of current flowing into the LED according to a comparison of the feedback signal with a first reference signal.

Abstract: A semiconductor device having both vertical and horizontal type gates and a method for fabricating the same for obtaining high integration of the semiconductor device and integration with other devices while also maximizing the breakdown voltage and operational speed and preventing damage to the semiconductor device.