摘要:
An integrated circuit includes a first inner circuit including at least one first semiconductor device, a second inner circuit including at least one second semiconductor device, and a fusing circuit connected between the first inner circuit and the second inner circuit to perform a fusing operation which electrically disconnects the first inner circuit from the second inner circuit through a fusing voltage. The fusing circuit bypasses a spark current occurring during the fusing operation to a ground power source so as not to flow the spark current into the first inner circuit and the second inner circuit.
摘要:
A comparator circuit. A comparator circuit may include a differential amplifying unit to amplify a difference between a voltage at a first node and a voltage at a second node and/or output a resultant voltage, and/or a current source to supply a first bias current to a first node and/or supply a second bias current to a second node. A comparator may include a first bias switch to bias a current flowing from a first node to a ground voltage source, a second bias switch to bias a part of a current flowing from a second node to a ground voltage source, a third bias switch to bias a remaining part of a current flowing from a second node to a ground voltage source, and/or a bias converting unit to supply a third bias current to a second node.
摘要:
A comparator circuit. A comparator circuit may include a differential amplifying unit to amplify a difference between a voltage at a first node and a voltage at a second node and/or output a resultant voltage, and/or a current source to supply a first bias current to a first node and/or supply a second bias current to a second node. A comparator may include a first bias switch to bias a current flowing from a first node to a ground voltage source, a second bias switch to bias a part of a current flowing from a second node to a ground voltage source, a third bias switch to bias a remaining part of a current flowing from a second node to a ground voltage source, and/or a bias converting unit to supply a third bias current to a second node.
摘要:
A power integration circuit includes: a first transistor having a control electrode connected to a first voltage source to be supplied with a control signal therefrom, the first transistor being connected between a switch and a ground. A sense resistor has one end connected to the ground. A second transistor has a control electrode connected to the first voltage source to be applied with a control signal therefrom, with the second transistor being connected between the switch and the other end of the sense resistor. The power integration circuit further includes: a comparator for comparing the sense voltage with the reference voltage and delivering a difference between the sense voltage and the reference voltage to a logic circuit.
摘要:
A power integration circuit includes: a first transistor having a control electrode connected to a first voltage source to be supplied with a control signal therefrom, the first transistor being connected between a switch and a ground. A sense resistor has one end connected to the ground. A second transistor has a control electrode connected to the first voltage source to be applied with a control signal therefrom, with the second transistor being connected between the switch and the other end of the sense resistor. The power integration circuit further includes: a comparator for comparing the sense voltage with the reference voltage and delivering a difference between the sense voltage and the reference voltage to a logic circuit.
摘要:
A circuit for driving a sensorless BLDC motor is disclosed which checks whether or not the motor is rotating and then terminates the start up interval (or forced drive interval) in order to obtain efficient motor drive. The present invention is comprised of a comparator which receives a phase voltage through a first input terminal and receives a neutral point voltage through a second input terminal, and a flip-flop unit which is comprised of a plurality of flip-flop devices. Each flip-flop device is a means for receiving an output of the comparator through a clock signal input terminal, and a reset signal through a reset signal input terminal. The sensorless BLDC motor operates in a running mode when data provided to the input terminal of the first flip-flop means is output from the output terminal of the last flip-flop.