Abstract: The invention provides a temperature sensing device of an integrated circuit. The integrated circuit includes a plurality of stacked metal wire layers, and the temperature sensing device includes a first metal sheet, a first via and a second via. The first metal sheet is disposed between the first metal wire layer and the second metal wire layer of the metal wire layers. The first via and the second via are used to connect the first metal sheet and the first metal wire layer, wherein a temperature sensing signal enters the first metal sheet through the first via and leaves the first metal sheet through the second via to measure the temperature of the integrated circuit.

Abstract: A method for controlling a touch system capable of reducing electromagnetic interference includes generating a first transmitting signal with a first frequency and a first alternating current shielding signal with the first frequency, transmitting the first transmitting signal to a first scan line of a plurality of scan lines of a touch panel, transmitting the first alternating current shielding signal to the plurality of scan lines exclusive of the first scan line, generating a second transmitting signal with a second frequency and a second alternating current shielding signal with the second frequency, transmitting the second transmitting signal to a second scan line of the plurality of scan lines, and transmitting the second alternating current shielding signal to the plurality of scan lines exclusive of the second scan line.

Abstract: A refrigeration cabinet includes a freezing compartment, a first evaporator and a second evaporator. The freezing compartment includes a freezing compartment door, and the first evaporator and the second evaporator are both equipped in the freezing compartment. The first evaporator is turned off and a second evaporator is working while the freezing compartment door is opened. In addition, a refrigeration cabinet operation method is also disclosed herein.

Abstract: A method for controlling a touch system capable of reducing electromagnetic interference includes generating first frequency data, generating a first transmitting signal with a first frequency and a first alternating current shielding signal with the first frequency according to the first frequency data, transmitting the first transmitting signal to a first scan line of a plurality of scan lines of a touch panel, transmitting the first alternating current shielding signal to the plurality of scan lines exclusive of the first scan line, generating second frequency data, generating a second transmitting signal with a second frequency and a second alternating current shielding signal with the second frequency according to the second frequency data, transmitting the second transmitting signal to a second scan line of the plurality of scan lines, and transmitting the second alternating current shielding signal to the plurality of scan lines exclusive of the second scan line.

Abstract: A touch pad driving device and a touch driving method are provided. The touch pad driving device is configured to scan a plurality of sensing channels of a touch pad, cause the selected sensing channel in the plurality of sensing channels receive a touch driving signal, cause the sensing channels adjacent to or around the selected sensing channel receive a shielding signal, and cause the remaining sensing channels receive a reference signal, so as to reduce electromagnetic interference generated by the touch pad.

Abstract: A touch pad driving device and a touch driving method are provided. The touch pad driving device is configured to scan a plurality of sensing channels of a touch pad, cause the selected sensing channel in the plurality of sensing channels receive a touch driving signal, cause the sensing channels adjacent to or around the selected sensing channel receive a shielding signal, and cause the remaining sensing channels receive a reference signal, so as to reduce electromagnetic interference generated by the touch pad.

Abstract: A gate driving circuit for providing a high driving voltage includes a first N-type high-voltage transistor and a second N-type high-voltage transistor connected in series between a driving voltage output node and a system low-voltage source. A voltage difference between a system high-voltage source and the system low-voltage source is greater than a withstand voltage of the first or second N-type high-voltage transistor. When the driving voltage output node is to output a system high voltage, the first N-type high-voltage transistor and the second N-type high-voltage transistor are turned off. Deep N-type well regions of the first N-type high-voltage transistor and the second N-type high-voltage transistor are applied with a first bias voltage. A voltage difference between the first bias voltage and the system low-voltage source is smaller than an interface breakdown voltage between the deep N-type well region and a P-type well region of the second N-type high-voltage transistor.

Abstract: A touch detection method includes outputting a first signal via an output terminal of a processing unit; receiving a second signal via an input terminal of the processing unit where a voltage level of the second signal corresponds to a voltage level of the first signal, a first capacitance of a first capacitor and a second capacitance of a second capacitor; performing a calibration calculation to the variation of voltage level of the second signal by using a calibration parameter for obtaining a calibrated variation; and determining a touch event has been triggered if the calibrated variation has passed a threshold.

Abstract: A touch detection device includes a processing unit, a first capacitor and a second capacitor. The processing unit has an output terminal for outputting a first analog signal, and an input terminal for receiving a second analog signal. The first capacitor has an adjustable first capacitance. The first capacitor includes a first terminal coupled to the output terminal of the processing unit, and a second terminal coupled to the input terminal of the processing unit. The second capacitor has a second capacitance. The second capacitor includes a first terminal coupled to the input terminal of the processing unit, and a second terminal coupled to a ground terminal. The first capacitance is adjusted to be substantially equal to the second capacitance. The processing unit determines whether a touch event is triggered according to variation of voltage level of the second analog signal.

Abstract: A detection circuit of Universal Serial Bus (USB) is provided. A port of the USB has a first configuration channel pin and a second configuration channel pin, and the first and second configuration channel pins are disposed on opposite sides. The detection circuit includes a switch unit and a detection unit. The switch unit is coupled to the first and second configuration channel pins to sequentially provide a first voltage level of the first configuration channel pin and a second voltage level of the second configuration channel pin. The detection unit is coupled to the switch unit and correspondingly provides a state reference signal according to the first and second voltage levels.

Abstract: A touch detection method includes outputting a first signal via an output terminal of a processing unit; receiving a second signal via an input terminal of the processing unit where a voltage level of the second signal corresponds to a voltage level of the first signal, a first capacitance of a first capacitor and a second capacitance of a second capacitor; performing a calibration calculation to the variation of voltage level of the second signal by using a calibration parameter for obtaining a calibrated variation; and determining a touch event has been triggered if the calibrated variation has passed a threshold.

Abstract: A touch detection device includes a processing unit, a first capacitor and a second capacitor. The processing unit has an output terminal for outputting a first analog signal, and an input terminal for receiving a second analog signal. The first capacitor has an adjustable first capacitance. The first capacitor includes a first terminal coupled to the output terminal of the processing unit, and a second terminal coupled to the input terminal of the processing unit. The second capacitor has a second capacitance. The second capacitor includes a first terminal coupled to the input terminal of the processing unit, and a second terminal coupled to a ground terminal. The first capacitance is adjusted to be substantially equal to the second capacitance. The processing unit determines whether a touch event is triggered according to variation of voltage level of the second analog signal.

Abstract: A detection circuit of Universal Serial Bus (USB) is provided. A port of the USB has a first configuration channel pin and a second configuration channel pin, and the first and second configuration channel pins are disposed on opposite sides. The detection circuit includes a switch unit and a detection unit. The switch unit is coupled to the first and second configuration channel pins to sequentially provide a first voltage level of the first configuration channel pin and a second voltage level of the second configuration channel pin. The detection unit is coupled to the switch unit and correspondingly provides a state reference signal according to the first and second voltage levels.

Abstract: A voltage converter including a first transistor, a second transistor, an inductor and a control module is provided. The first transistor has a source terminal receiving an input signal, and a body terminal receiving a first bias voltage. The second transistor has a drain terminal coupled to a drain terminal of the first transistor, a source terminal coupled to ground, and a body terminal receiving a second bias voltage. The inductor has a first terminal coupled to the drain terminal of the first terminal and a second terminal generating an output voltage. The control module is coupled to a gate terminal of the first transistor and a gate terminal of the second transistor for controlling conducting states of the first transistor and the second transistor.

Abstract: A light-emitting device driving circuit and a method thereof are provided. A terminal of a light-emitting device is coupled to a supply voltage and a cathode of a diode via an inductor, and the other terminal is coupled to an anode of the diode. The light-emitting device driving circuit includes a switch, a current-sensing circuit, and a switch control circuit. The current-sensing circuit is coupled to the anode of the diode via the switch to determine whether or not to generate a turning-off control signal according to a conducting-current value of the switch. The switch control circuit controls an on/off state of the switch, and turns off the switch according to the turning-off control signal. Besides, the switch control circuit compares the conducting-current value with a reference-current value to generate a comparing result to dynamically adjust a time length of turning off the switch accordingly.

Abstract: A constant-current driving circuit includes a first current source, a reference voltage generating circuit and an output signal generating circuit. A terminal of the first current source is coupled to a terminal of a first LED string, wherein the terminal of the first current source has a first voltage. The reference voltage generating circuit is used for generating a reference voltage and comparing the first voltage with a first predetermined voltage to generate a first comparing signal to thereby adjust the reference voltage. The output signal generating circuit is used for outputting an output signal to another terminal of the first LED string and receiving the input signal, wherein the output signal generating circuit decides whether or not to output the input signal serving as the output signal according to the comparison result of the reference voltage with the second voltage.

Abstract: A voltage converting apparatus is disclosed. The voltage converting apparatus mentioned above includes an error comparator. The error comparator receives a feedback voltage and a reference voltage and generates a control signal according to the feedback voltage and the reference voltage. Moreover, the error comparator includes a differential pair, a first current source, and an offset voltage controlling circuit. The offset voltage controlling circuit receives a ramp enabling signal and adjusts a bias current flowing through at least one of a first and a second output terminal of the differential pair according to the ramp enabling signal.

Abstract: A low temperature coefficient oscillator including a current generator, a first and a second voltage generator, an amplifier, a resistor, a switch, a capacitor and an oscillating unit is provided. The current generator generates a first through a fourth current according to a control signal. The first voltage generator generates a first voltage according to the first current. The second voltage generator generates a second voltage according to the second current and a frequency signal. The amplifier generates the control signal according the first and second voltages. The resistor is coupled between a first terminal of the switch and ground, and a first terminal thereof receives the third current. The switch is conducted or not according the frequency signal. The capacitor is coupled between a second terminal of the switch and ground. The oscillating unit generates the frequency signal according to the fourth current and a voltage of the capacitor.

Abstract: A voltage converter including a first transistor, a second transistor, an inductor and a control module is provided. The first transistor has a source terminal receiving an input signal, and a body terminal receiving a first bias voltage. The second transistor has a drain terminal coupled to a drain terminal of the first transistor, a source terminal coupled to ground, and a body terminal receiving a second bias voltage. The inductor has a first terminal coupled to the drain terminal of the first terminal and a second terminal generating an output voltage. The control module is coupled to a gate terminal of the first transistor and a gate terminal of the second transistor for controlling conducting states of the first transistor and the second transistor.

Abstract: A low temperature coefficient oscillator including a current generator, a first and a second voltage generator, an amplifier, a resistor, a switch, a capacitor and an oscillating unit is provided. The current generator generates a first through a fourth current according to a control signal. The first voltage generator generates a first voltage according to the first current. The second voltage generator generates a second voltage according to the second current and a frequency signal. The amplifier generates the control signal according the first and second voltages. The resistor is coupled between a first terminal of the switch and ground, and a first terminal thereof receives the third current. The switch is conducted or not according the frequency signal. The capacitor is coupled between a second terminal of the switch and ground. The oscillating unit generates the frequency signal according to the fourth current and a voltage of the capacitor.