Abstract: An apparatus for charging and discharging a battery is provided, in which the apparatus includes a charging unit, a detecting unit and a discharging unit. The charging unit charges the battery in response to a charging voltage coupled to a voltage input terminal of the charging unit. The detecting unit detects a coupled state between the charging voltage and the charging unit, and turns on a discharging path provided by the discharging unit when the charging voltage is moved away from the charging unit, so as to make the battery supply power to a load. The detecting unit turns off the discharging path when the charging voltage is coupled to the charging unit, so that the battery can not supply power to the load.

Abstract: A load driving apparatus adapted to drive an outdoor display is provided. The load driving apparatus includes a weather sensing circuit and a display driver. The weather sensing circuit is configured to sense a weather condition corresponding to an installation place of the outdoor display, and accordingly provides a sensing voltage signal varied along with the weather condition. The display driver is coupled between the weather sensing circuit and the outdoor display, and is configured to drive the outdoor display for displaying in response to the sensing voltage signal. When the weather condition is a cloudy day, the sensing voltage signal is linearly varied within a predetermined voltage range, and then the display brightness of the outdoor display is linearly varied between a maximum brightness and a minimum brightness.

Abstract: A load driving apparatus is provided, which includes: a DC high voltage generation circuit, configured to selectively receive one of first and second AC input voltages different to each other, and process the received AC input voltage to obtain and provide a DC high voltage, wherein the DC high voltage obtained by processing either the first or second AC input voltages is substantially or approximately the same; a switching circuit, configured to selectively output the DC high voltage or a ground potential in response to two complementary PWM signals, so as to provide an AC signal; a transformer, having a primary side receiving the AC signal from the switching circuit, and a secondary side providing a driving signal to drive a light-emitting load in response to the AC signal; and a control circuit, configured to generate the two complementary PWM signals to control switching of the switching circuit.

Abstract: A light-emitting-diode (LED) driving apparatus and an LED driving method suitable for driving an LED load are provided. The LED driving apparatus includes a driving circuit, a feedback circuit, and a control chip. The driving circuit provides a driving voltage by means of boost converting or buck-boost converting to one terminal of the LED load according to a pulse-width-modulation (PWM) driving signal. The feedback circuit generates a feedback voltage according to a voltage on the other terminal of the LED load. The control chip generates the PWM driving signal and adjusts the duty cycle of the PWM driving signal in response to the feedback voltage. If the control chip determines the PWM driving signal with a maximum duty cycle continues being output over a preset period of time, the control chip determines that the current leakage phenomenon occurs on the LED load and stops generating the PWM driving signal.

Abstract: A light emitting diode (LED) driving apparatus and an LED driving method suitable for driving an LED load are provided. The LED driving apparatus includes a driving circuit, a feedback circuit, and a control chip. The driving circuit provides a driving voltage to one terminal of the LED load according to a pulse-width modulation (PWM) driving signal. The feedback circuit generates a feedback voltage according to a voltage on the other terminal of the LED load. The control chip is configured to generate the PWM driving signal and adjust the duty cycle of the PWM driving signal in response to the feedback voltage. If the control chip determines the PWM driving signal with a threshold duty cycle continues being output over a preset period of time, the control chip determines that the current leakage phenomenon occurs on the LED load and stops generating the PWM driving signal.

Abstract: A load driving apparatus related to light-emitting-diodes (LEDs) is provided. The load driving apparatus includes a power conversion circuit, a current detection circuit, and a control chip. The power conversion circuit receives a DC input voltage and provides a DC output voltage to at least one LED string in response to a gate pulse-width-modulation (PWM) signal. The current detection circuit is serially connected with the LED string and provides a feedback voltage related to a current flowing through the LED string. The control chip generates the gate PWM signal to control the operation of the power conversion circuit. When the LED string is short-circuited, the control chip is shut down in response to the feedback voltage from the current detection circuit, so as to stop generating the gate PWM signal and thus protect the load driving apparatus from being damaged.

Abstract: A load driving apparatus related to light emitting diodes (LED) is provided. The load driving apparatus includes a power conversion circuit, a complex function circuit, and a control chip. The power conversion circuit receives a DC input voltage and provides a DC output voltage to at least one LED string in response to a gate pulse-width-modulation (PWM) signal. The complex function circuit is serially connected with the LED string and provides a short-protection mechanism. The control chip is coupled to the power conversion circuit and the complex function circuit. The control chip generates the gate PWM signal to control the operation of the power conversion circuit, and when the LED string is short-circuited, the control chip controls the complex function circuit to activate the short-protection mechanism, so as to protect the load driving apparatus from being damaged.

Abstract: A load driving apparatus including a power conversion circuit, a current balance circuit, a protection unit and a control chip is provided. The power conversion circuit is configured to receive a DC input voltage, and provide a DC output voltage to a plurality of light emitting units in response to a control signal. The current balance circuit has a plurality of switch elements corresponding to the light emitting units, and is configured to balance currents flowing through the light emitting units. The protection unit detects statuses of the switch elements and/or the DC output voltage. The control chip generates the control signal to control operations of the power conversion circuit; and stops generating the control signal and enters into a shutdown status when any one of the switch elements is open-circuit and/or the DC output voltage is over-voltage, thereby protecting the load driving apparatus and/or the switch elements from damaging.

Abstract: A lamp driving apparatus and an illumination equipment using the same are provided. The provided lamp driving apparatus is responsible for driving a lamp. When any one of two terminals of the lamp is opened or the lamp is over-voltage, the provided driving apparatus stops driving the lamp, and thus achieving the purpose of open lamp and over-voltage protection/detection.

Abstract: A lighting apparatus for a fluorescent tube and a driving method thereof are provided. The lighting apparatus includes a fluorescent tube, an open-loop protection unit and a driving device. The driving device includes an inverter and a power unit. The open-loop protection unit detects and determines an open-loop situation of two nodes of the fluorescent tube to produce an open-loop protection signal. The inverter receives a power voltage to light the fluorescent tube with a dual high-voltage method according to a trigger signal. The power unit coupled to the open-loop protection unit and the inverter provides the power voltage and determines whether to turn off the inverter according to the open-loop protection signal. When the open-loop situation of the fluorescent tube is occurred or driving voltage of the fluorescent tube is greater than a rated operating voltage, the inverter is turned off immediately to avoid components from overheating or burning.

Abstract: A light emitting diode (LED) driving apparatus and an LED driving method suitable for driving an LED load are provided. The LED driving apparatus includes a driving circuit, a feedback circuit, and a control chip. The driving circuit provides a driving voltage to one terminal of the LED load according to a pulse-width modulation (PWM) driving signal. The feedback circuit generates a feedback voltage according to a voltage on the other terminal of the LED load. The control chip is configured to generate the PWM driving signal and adjust the duty cycle of the PWM driving signal in response to the feedback voltage. If the control chip determines the PWM driving signal with a threshold duty cycle continues being output over a preset period of time, the control chip determines that the current leakage phenomenon occurs on the LED load and stops generating the PWM driving signal.

Abstract: A lamp driving apparatus and an illumination equipment using the same are provided. The provided lamp driving apparatus is responsible for driving a lamp. When any one of two terminals of the lamp is opened or the lamp is over-voltage, the provided driving apparatus stops driving the lamp, and thus achieving the purpose of open lamp and over-voltage protection/detection.

Abstract: A load driving apparatus related to light emitting diodes (LED) is provided. The load driving apparatus includes a power conversion circuit, a complex function circuit, and a control chip. The power conversion circuit receives a DC input voltage and provides a DC output voltage to at least one LED string in response to a gate pulse-width-modulation (PWM) signal. The complex function circuit is serially connected with the LED string and provides a short-protection mechanism. The control chip is coupled to the power conversion circuit and the complex function circuit. The control chip generates the gate PWM signal to control the operation of the power conversion circuit, and when the LED string is short-circuited, the control chip controls the complex function circuit to activate the short-protection mechanism, so as to protect the load driving apparatus from being damaged.

Abstract: A fluorescent tube driving device including a first voltage converter, a second voltage converter, an oscillating unit, an inverter, an adjusting unit, a switching unit and a voltage stabilizing unit is provided. The first and the second voltage converters convert an alternating-current (AC) voltage to a first direct-current (DC) voltage and a second DC voltage. The oscillating unit is charged by the first DC voltage to generate a charging voltage and a trigger signal. The adjusting unit is charged by the charging voltage to generate a power supply signal. The switching unit transmits the second DC voltage according to the power supply signal. The voltage stabilizing unit stabilizes the voltage from the switching unit. Both of the oscillating unit and the adjusting unit are charged at a delay speed to synchronously transmit the operation voltage and the trigger signal to a controller in the inverter.

Abstract: An apparatus for driving loads is disclosed. The apparatus mentioned above for driving a plurality of loads includes a protection module and a current generating module. The protection module has a plurality of detection terminals and generates a plurality of detection results according to a plurality of driving voltages on the detection terminals. The current generating module provides a plurality driving currents according to the detection results for flowing through each of the loads, separately.

Abstract: A lighting apparatus for a fluorescent tube and a driving method thereof are provided. The lighting apparatus includes a fluorescent tube, an open-loop protection unit and a driving device. The driving device includes an inverter and a power unit. The open-loop protection unit detects and determines an open-loop situation of two nodes of the fluorescent tube to produce an open-loop protection signal. The inverter receives a power voltage to light the fluorescent tube with a dual high-voltage method according to a trigger signal. The power unit coupled to the open-loop protection unit and the inverter provides the power voltage and determines whether to turn off the inverter according to the open-loop protection signal. When the open-loop situation of the fluorescent tube is occurred or driving voltage of the fluorescent tube is greater than a rated operating voltage, the inverter is turned off immediately to avoid components from overheating or burning.

Abstract: A fluorescent tube driving device including a first voltage converter, a second voltage converter, an oscillating unit, an inverter, an adjusting unit, a switching unit and a voltage stabilizing unit is provided. The first and the second voltage converters convert an alternating-current (AC) voltage to a first direct-current (DC) voltage and a second DC voltage. The oscillating unit is charged by the first DC voltage to generate a charging voltage and a trigger signal. The adjusting unit is charged by the charging voltage to generate a power supply signal. The switching unit transmits the second DC voltage according to the power supply signal. The voltage stabilizing unit stabilizes the voltage from the switching unit. Both of the oscillating unit and the adjusting unit are charged at a delay speed to synchronously transmit the operation voltage and the trigger signal to a controller in the inverter.

Abstract: An apparatus for driving loads is disclosed. The apparatus mentioned above for driving a plurality of loads includes a protection module and a current generating module. The protection module has a plurality of detection terminals and generates a plurality of detection results according to a plurality of driving voltages on the detection terminals. The current generating module provides a plurality driving currents according to the detection results for flowing through each of the loads, separately.