Abstract: A power supply is provided. The power supply includes a power supply circuit and a control circuit. The power supply circuit includes a voltage converter and multiple point-of-load circuits. The voltage converter generates a third voltage according to a first voltage. The load point-of-load circuits generate at least one second voltage and at least one state signal according to the third voltage. The at least one second voltage is suitable for supplying power to a load. The control circuit is coupled to the power supply circuit. The control circuit determines whether a single event latch-up occurs in the power supply circuit according to the at least one state signal. When the single event latch-up occurs in the power supply circuit, the control circuit switches off the power supply circuit to stop generating the at least one second voltage and the at least one state signal.

Abstract: A power supply is provided. The power supply includes a power supply circuit and a control circuit. The power supply circuit includes a voltage converter and multiple point-of-load circuits. The voltage converter generates a third voltage according to a first voltage. The load point-of-load circuits generate at least one second voltage and at least one state signal according to the third voltage. The at least one second voltage is suitable for supplying power to a load. The control circuit is coupled to the power supply circuit. The control circuit determines whether a single event latch-up occurs in the power supply circuit according to the at least one state signal. When the single event latch-up occurs in the power supply circuit, the control circuit switches off the power supply circuit to stop generating the at least one second voltage and the at least one state signal.

Abstract: A visible light communication device includes a light-emitting unit, a switch-mode light-emitting diode (LED) driver, a synthesizing circuit, and a path selection circuit. The switch-mode LED driver provides a driving current for driving the light-emitting unit. The synthesizing circuit synthesizes a data signal and a dimming signal to form a synthesized signal. According to a data frequency and a dimming ratio obtained from one or more path selection information, the path selection circuit selects to turn on a bypass current modulation unit to inject the synthesized signal to the bypass current modulation unit along one path and the bypass current modulation unit controls the light-emitting unit according to the synthesized signal, or selects to inject the synthesized signal to the switch-mode LED driver along another path and the switch-mode LED driver controls the light-emitting unit according to the synthesized signal.

Abstract: A visible light communication device includes a light-emitting unit, a switch-mode light-emitting diode (LED) driver, a synthesizing circuit, and a path selection circuit. The switch-mode LED driver provides a driving current for driving the light-emitting unit. The synthesizing circuit synthesizes a data signal and a dimming signal to form a synthesized signal. According to a data frequency and a dimming ratio obtained from one or more path selection information, the path selection circuit selects to turn on a bypass current modulation unit to inject the synthesized signal to the bypass current modulation unit along one path and the bypass current modulation unit controls the light-emitting unit according to the synthesized signal, or selects to inject the synthesized signal to the switch-mode LED driver along another path and the switch-mode LED driver controls the light-emitting unit according to the synthesized signal.

Abstract: An optical communication device and a control method thereof are provided. The optical communication device includes a driving module, a data transmission module, a light emitting module, and a feedback module. The driving module generates a driving current. The data transmission module generates a data current according to a piece of data. The light emitting module is electrically connected to the driving module and the data transmission module directly and emits visible light according to an illuminating current generated by combining the driving current with the data current. The feedback module adjusts a direct current (DC) potential of one of the driving current and the data current so as to make an average intensity of the visible light equal a preset intensity.

Abstract: An optical communication device and a control method thereof are provided. The optical communication device includes a driving module, a data transmission module, a light emitting module, and a feedback module. The driving module generates a driving current. The data transmission module generates a data current according to a piece of data. The light emitting module is electrically connected to the driving module and the data transmission module directly and emits visible light according to an illuminating current generated by combining the driving current with the data current. The feedback module adjusts a direct current (DC) potential of one of the driving current and the data current so as to make an average intensity of the visible light equal a preset intensity.

Abstract: An exemplary embodiment provides a charging method. The charging method includes detecting a charging current and producing a current-detecting signal according to the charging current; comparing the current-detecting signal with a first reference voltage and producing a current comparison signal accordingly; producing a second reference voltage according to the current comparison signal; comparing a battery voltage of a battery with the second reference voltage and producing a voltage comparison signal accordingly; producing a set of control signals according to the voltage comparison signal; and producing an adjusted charging voltage according to the control signals and a charging voltage, wherein the charging current is produced by the adjusted charging voltage to charge the battery.

Abstract: A battery analysis device for a battery module having at least one battery cell includes a power source supply unit, a signal capturing unit, a signal adjusting unit, a frequency domain analyzing unit, a time domain analyzing unit, and a processing unit. The power source supply unit provides a variable-frequency voltage signal to a battery cell. The signal capturing unit captures a current signal generated by a battery cell in response to the variable-frequency voltage signal. The signal adjusting unit adjusts the variable-frequency voltage signal and the current signal. The frequency domain analyzing unit and time domain analyzing unit analyze both the adjusted variable-frequency voltage signal and the adjusted current signal in frequency domain and time domain respectively for obtaining a frequency domain parameter and a time domain parameter. The processing unit obtains electrochemistry characteristics of the battery cell according to the frequency and the time domain parameters.

Abstract: A clock and data recovery apparatus and the method thereof are applied for burst mode clock and data recovery (CDR) in a passive optical network (PON). A phase-locked loop induces a first control signal and a first clock. A clock and data recovery circuit receives an incoming data having a first frequency and induces a second clock having one of second and third frequencies to sample the incoming data according to the second clock to obtain a recovered data, wherein the first frequency is between the second and third frequencies. Moreover, a controller induces a second control signal according to the incoming data (or the recovered data), the first clock, and the second clock to adjust the frequency of the second clock.

Abstract: A clock and data recovery apparatus and the method thereof are applied for burst mode clock and data recovery (CDR) in a passive optical network (PON). A phase-locked loop induces a first control signal and a first clock. A clock and data recovery circuit receives an incoming data having a first frequency and induces a second clock having one of second and third frequencies to sample the incoming data according to the second clock to obtain a recovered data, wherein the first frequency is between the second and third frequencies. Moreover, a controller induces a second control signal according to the incoming data (or the recovered data), the first clock, and the second clock to adjust the frequency of the second clock.