Abstract: A conversion control circuit is configured to generate a PWM (pulse width modulation) signal to control a power switch for switching an inductor to convert an input voltage to an output voltage. The steps of generating the PWM signal includes: enabling the PWM signal at a rising edge of a clock signal to turn on the power switch; disabling the PWM signal to turn off the power switch when an on-time exceeds a predetermined minimum on-time and the output voltage has reached an output level; triggering a next rising edge of the clock signal when the off-time exceeds a predetermined minimum off-time, the output voltage has not reached the output level, and a present cycle period of the clock signal has reached a predetermined cycle period.

Abstract: A charging system includes: an input voltage supply circuit; a control circuit coupled to the input voltage supply circuit, configured to control the input voltage supply circuit to generate an input voltage according to a battery voltage of a target battery; and a charging circuit, coupled to the control circuit, configured to receive the input voltage and to provide a charging current to charge the target battery. The input voltage is generated according to a function that takes the battery voltage as a parameter. The input voltage is positively correlated with the battery voltage, and is greater than the battery voltage.

Abstract: A buck-boost switching regulating method includes outputting a mode signal according to an input voltage and an output voltage, generating one of a plurality of triangle waves according to the mode signal, comparing a feedback signal and a reference signal to generate an error signal, comparing the error signal and the generated triangle wave to output a comparison signal, and generating a set of switch signals according to the comparison signal. The feedback signal is related to the output voltage. The waveform of the triangle wave generated when the mode signal represents a buck-boost mode is larger than that when the mode signal represents a adjusting mode.

Abstract: A charging system includes: an input voltage supply circuit; a control circuit coupled to the input voltage supply circuit, configured to control the input voltage supply circuit to generate an input voltage according to a battery voltage of a target battery; and a charging circuit, coupled to the control circuit, configured to receive the input voltage and to provide a charging current to charge the target battery. The input voltage is generated according to a function that takes the battery voltage as a parameter. The input voltage is positively correlated with the battery voltage, and is greater than the battery voltage.

Abstract: A 3D network-structured silicon-containing preploymer and a method for fabricating the same are disclosed. The method of the present invention undertakes a hydrolytic condensation/polymerization reaction of penta(alkanol)alkoxy disiloxane, a reactive silicon-containing polymer and a reactive hydrophilic monomer to form a silicon-containing preploymer featuring a 3D network structure and having superior mechanical strength. The method further undertakes a copolymerization reaction of the silicon-containing preploymer, a hydrophilic monomer and a silicon-containing hydrophobic monomer to fabricate a silicone hydrogel-containing mixture having high oxygen permeability and high hydrophilicity. The silicone hydrogel-containing mixture can be used to fabricate contact lenses that the users wear comfortably.

Abstract: A phase adjustment circuit of a power converter, the power converter, and a control method of the power converter are provided. The control method includes following steps. A delay signal is generated according to an error signal, and the error signal is associated with an output voltage of the power converter. A difference between the error signal and the delay signal is amplified. A control signal is provided according to the amplified difference and the error signal, and a phase of the control signal leads a phase of the error signal. The control signal serves to improve a response speed of the power converter.

Abstract: A 3D network-structured silicon-containing preploymer and a method for fabricating the same are disclosed. The method of the present invention undertakes a hydrolytic condensation/polymerization reaction of penta(alkynol)alkoxy solixane, a reactive silicon-containing polymer and a reactive hydrophilic monomer to form a silicon-containing preploymer featuring a 3D network structure and having superior mechanical strength. The method further undertakes a copolymerization reaction of the silicon-containing preploymer, a hydrophilic monomer and a silicon-containing hydrophobic monomer to fabricate a silicone hydrogel-containing mixture having high oxygen permeability and high hydrophilicity. The silicone hydrogel-containing mixture can be used to fabricate contact lenses that the users wear comfortably.

Abstract: A 3D network-structured silicon-containing preploymer and a method for fabricating the same are disclosed. The method of the present invention undertakes a hydrolytic condensation/polymerization reaction of TEOS, a reactive silicon-containing polymer and a reactive hydrophilic monomer to form a silicon-containing preploymer featuring a 3D network structure and having superior mechanical strength. The method further undertakes a copolymerization reaction of the silicon-containing preploymer, a hydrophilic monomer and a silicon-containing hydrophobic monomer to fabricate a silicone hydrogel-containing mixture having high oxygen permeability and high hydrophilicity. The silicone hydrogel-containing mixture can be used to fabricate contact lenses that the users wear comfortably.

Abstract: A DC-DC controller is provided. The DC-DC controller is connected to an output stage and a load, and the output stage is connected to the load through an output inductor. The DC-DC controller includes an error amplifier, a pulse width modulation (PWM) generation circuit and a compensation circuit. A first input terminal of the error amplifier is connected to one terminal of the output inductor. A second terminal of the error amplifier receives a reference voltage. The PWM generation circuit is connected to the error amplifier and provides a PWM signal to the output stage. The compensation circuit is at least connected to an output terminal of the error amplifier. The compensation circuit includes an adjustable capacitor circuit. The adjustable capacitor circuit adjusts an equivalent capacitance value according to a change of the load dynamically, so as to speed up a reaction rate in the transient response.

Abstract: An integrated circuit with multi-functional parameter setting and a multi-functional parameter setting method thereof are provided. The multi-functional parameter setting method includes the following steps: providing the integrated circuit, wherein the integrated circuit includes a multi-functional pin and a switch unit, wherein the multi-functional pin is coupled to an external setting unit, and the switch unit includes an operational amplifier; sensing a programmable reference voltage of the external setting unit through one operation of the switch unit and executing a first function setting according to the programmable reference voltage; and sensing a programmable reference current related to the external setting unit through another operation of the switch unit and executing a second function setting according to the programmable reference current, wherein a value of the programmable reference current is related to the programmable reference voltage.

Abstract: A phase adjustment circuit of a power converter, the power converter, and a control method of the power converter are provided. The control method includes following steps. A delay signal is generated according to an error signal, and the error signal is associated with an output voltage of the power converter. A difference between the error signal and the delay signal is amplified. A control signal is provided according to the amplified difference and the error signal, and a phase of the control signal leads a phase of the error signal. The control signal serves to improve a response speed of the power converter.

Abstract: An integrated circuit with multi-functional parameter setting and a multi-functional parameter setting method thereof are provided. The multi-functional parameter setting method includes the following steps: providing the integrated circuit, wherein the integrated circuit includes a multi-functional pin and a switch unit, wherein the multi-functional pin is coupled to an external setting unit, and the switch unit includes an operational amplifier; sensing a programmable reference voltage of the external setting unit through one operation of the switch unit and executing a first function setting according to the programmable reference voltage; and sensing a programmable reference current related to the external setting unit through another operation of the switch unit and executing a second function setting according to the programmable reference current, wherein a value of the programmable reference current is related to the programmable reference voltage.

Abstract: A DC-DC controller is provided. The DC-DC controller is connected to an output stage and a load, and the output stage is connected to the load through an output inductor. The DC-DC controller includes an error amplifier, a pulse width modulation (PWM) generation circuit and a compensation circuit. A first input terminal of the error amplifier is connected to one terminal of the output inductor. A second terminal of the error amplifier receives a reference voltage. The PWM generation circuit is connected to the error amplifier and provides a PWM signal to the output stage. The compensation circuit is at least connected to an output terminal of the error amplifier. The compensation circuit includes an adjustable capacitor circuit. The adjustable capacitor circuit adjusts an equivalent capacitance value according to a change of the load dynamically, so as to speed up a reaction rate in the transient response.

Abstract: An integrated circuit with multi-functional parameter setting and a multi-functional parameter setting method thereof are provided. The multi-functional parameter setting method includes the following steps: providing the integrated circuit, wherein the integrated circuit includes a multi-functional pin and a switch unit, wherein the multi-functional pin is coupled to an external setting unit, and the switch unit includes an operational amplifier; sensing a programmable reference voltage of the external setting unit through one operation of the switch unit and executing a first function setting according to the programmable reference voltage; and sensing a programmable reference current related to the external setting unit through another operation of the switch unit and executing a second function setting according to the programmable reference current. wherein a value of the programmable reference current is related to the programmable reference voltage.