Abstract: A DC to DC power converter device includes a controller, and a DC to DC resonant converter that includes first and second full bridge chopper circuits (FBCCs) and an LLC resonant converter coupled between the first and second FBCCs. To cause the DC to DC resonant converter to operate in a conversion mode where an input voltage received by the second FBCC is converted to an output voltage provided by the first FBCC, the controller controls switches of the second FBCC and switches of the first FBCC to transition between an ON state and an OFF state with the ON state reoccurring at a frequency lower than a resonant frequency of the DC to DC resonant converter, so that the output voltage can be higher than the input voltage.

Abstract: A power device capable of displaying various statuses and a displaying method are provided. The power device includes: a central microprocessor, a power conversion circuit, an LED bar (or a light bar) circuit, and a battery pack. The central microprocessor intrinsically has color setting and control logic and is internally provided with a color setting and control logic circuit. The power device is externally connected to a utility power source, a solar photovoltaic power source, a backup battery pack, and a load. The color setting and control logic circuit enables the LED bar circuit to correspondingly emit LED light of at least two colors according to different power sources supplied to the load or a battery capacity, and the LED light is displayed in a breathing-like manner. The central microprocessor adjusts a breathing rate of the LED light according to a power consumption of the load.

Abstract: An uninterruptible power system includes a power converting engine, a UPS control circuit, and a control display circuit. The control display circuit is detachable, the control display circuit is detachably mounted on the UPS control circuit through at least a connection between the control output interface and the display input interface. When the control display circuit is detached from the UPS control circuit, the control display circuit communicates with the UPS control circuit in a wireless communication manner.

Abstract: An uninterruptible power supply capable of intelligently controlling direct current (DC) output is provided. The uninterruptible power supply includes a power conversion integrated circuit, a first switch, a first controller, a DC to DC (DC-DC) converter, and a second controller and a battery pack. The first controller generates a first control signal and a second control signal, the second control signal is connected to the power conversion integrated circuit, and the first control signal is connected to the second controller configured inside the DC-DC converter. The battery pack is connected to the DC-DC converter to form a first power path, the DC-DC converter is connected to the power conversion integrated circuit to form a second power path, and the battery pack is connected to the power conversion integrated circuit to form a third power path.

Abstract: A power device capable of displaying various statuses and a displaying method are provided. The power device includes: a central microprocessor, a power conversion circuit, an LED bar (or a light bar) circuit, and a battery pack. The central microprocessor intrinsically has color setting and control logic and is internally provided with a color setting and control logic circuit. The power device is externally connected to a utility power source, a solar photovoltaic power source, a backup battery pack, and a load. The color setting and control logic circuit enables the LED bar circuit to correspondingly emit LED light of at least two colors according to different power sources supplied to the load or a battery capacity, and the LED light is displayed in a breathing-like manner. The central microprocessor adjusts a breathing rate of the LED light according to a power consumption of the load.

Abstract: An improved power supply circuit which includes a utility power source, a plurality of silicon controlled rectifiers (SCR1-SCR6), a first battery, a second battery, a first inductor, a second inductor, a first capacitor, a second capacitor and a plurality of power switch elements (Q1˜Q4). When the utility power source is in a positive half cycle, the SCR1 and the SCR6 are turned on; the SCR2, the SCR3, the SCR4 and the SCR5 are turned off; the Q1 is activated to make the electrical energy directed to the first capacitor through the diode of the Q3, and the voltage on the first capacitor is maintained at a constant. Meanwhile, the Q2 is turned off, the Q4 is operated to let the current flow through the second inductor to charge the second battery.

Abstract: An uninterruptible power system includes a power converting engine, a UPS control circuit, and a control display circuit. The control display circuit is detachable, the control display circuit is detachably mounted on the UPS control circuit through at least a connection between the control output interface and the display input interface. When the control display circuit is detached from the UPS control circuit, the control display circuit communicates with the UPS control circuit in a wireless communication manner.

Abstract: An improved power supply circuit which includes a utility power source, a plurality of silicon controlled rectifiers (SCR1-SCR6), a first battery, a second battery, a first inductor, a second inductor, a first capacitor, a second capacitor and a plurality of power switch elements (Q1˜Q4). When the utility power source is in a positive half cycle, the SCR1 and the SCR6 are turned on; the SCR2, the SCR3, the SCR4 and the SCR5 are turned off; the Q1 is activated to make the electrical energy directed to the first capacitor through the diode of the Q3, and the voltage on the first capacitor is maintained at a constant. Meanwhile, the Q2 is turned off, the Q4 is operated to let the current flow through the second inductor to charge the second battery.

Abstract: An optical-controlled driving circuit adapts to a high utility power environment with high voltages, large currents and severe surges, and includes an optical-controlled switch circuit, an SCR with optical-controlled driver and a main circuit. The optical-controlled switch circuit includes an optical-controlled component and a first switching transistor that are connected in serial. The SCR with optical-controlled driver includes at least two switching transistors that are connected in serial and a plurality of diodes, and is coupled to the main circuit. The optical-controlled driving circuit generates a driving current according to the voltage of a utility power. When the optical-controlled driving circuit is used in a DC converter using an SCR as a switch element, the optical-controlled driving circuit helps to increase the operation efficiency when the DC converter works under a light load.

Abstract: An optical-controlled driving circuit adapts to a high utility power environment with high voltages, large currents and severe surges, and includes an optical-controlled switch circuit, an SCR with optical-controlled driver and a main circuit. The optical-controlled switch circuit includes an optical-controlled component and a first switching transistor that are connected in serial. The SCR with optical-controlled driver includes at least two switching transistors that are connected in serial and a plurality of diodes, and is coupled to the main circuit. The optical-controlled driving circuit generates a driving current according to the voltage of a utility power. When the optical-controlled driving circuit is used in a DC converter using an SCR as a switch element, the optical-controlled driving circuit helps to increase the operation efficiency when the DC converter works under a light load.

Abstract: The present invention provides an uninterruptible power supply display device which includes a signal bus and a plurality of power supply modules each having a power supply unit, a display unit and a control unit. The plurality of power supply modules electrically connect with the signal bus. The control unit on each power supply module simultaneously electrically connects with the power supply unit, the display unit and the signal bus. Each display unit can be operated under a single machine display mode or a system display mode. When under the single machine display mode, the display unit displays the operation message of the corresponding power supply module. When under the system display mode, the display unit generates a system display screen to display the operation messages of the plurality of power supply modules.

Abstract: A modular uninterruptible power supply (UPS) system includes a housing having a plurality of slots, wherein a power module or a battery module can be selectively inserted into each of the slots; each of the slots is selectively disposed with a first connector and a second connector or only with the second connector; the back of the power module is disposed with a first connecting module and a second connecting module, and the first connecting module and the second connecting module are electrically connected to the first connector and the second connector when the power module is inserted into the slots; the back of the battery module is disposed with a second connecting module, and the second connecting module is electrically connected to the second connector.

Abstract: An integrated uninterruptible power supply (UPS) includes a UPS main board coupled with a controller and a battery pack. The UPS main board includes an AC (alternating current) input, a noise filtering surge protecting high voltage circuit breaker, a high power factor correction rectifier, a DC (direct current) bus, an inverter, a high power charger, a first battery contact, a second battery contact, a DC/DC convertor and an AC output. The present disclosure integrates a noise filter, a surge protector and a high voltage circuit breaker, and integrates a high power charger in the same circuit board. Therefore, the present disclosure lowers the material and production costs of UPS products, and decreases the circuit board size. In addition, the present disclosure decreases the total harmonic distortion, the ripples of input current, and the crosstalk between circuits, and increases the input power factor, the charging efficiency and the battery life.

Abstract: The present invention provides an uninterruptible power supply display device which includes a signal bus and a plurality of power supply modules each having a power supply unit, a display unit and a control unit. The plurality of power supply modules electrically connect with the signal bus. The control unit on each power supply module simultaneously electrically connects with the power supply unit, the display unit and the signal bus. Each display unit can be operated under a single machine display mode or a system display mode. When under the single machine display mode, the display unit displays the operation message of the corresponding power supply module. When under the system display mode, the display unit generates a system display screen to display the operation messages of the plurality of power supply modules.

Abstract: A modular uninterruptible power supply (UPS) system includes a housing having a plurality of slots, wherein a power module or a battery module can be selectively inserted into each of the slots; each of the slots is selectively disposed with a first connector and a second connector or only with the second connector; the back of the power module is disposed with a first connecting module and a second connecting module, and the first connecting module and the second connecting module are electrically connected to the first connector and the second connector when the power module is inserted into the slots; the back of the battery module is disposed with a second connecting module, and the second connecting module is electrically connected to the second connector.

Abstract: An integrated uninterruptible power supply (UPS) includes a UPS main board coupled with a controller and a battery pack. The UPS main board includes an AC (alternating current) input, a noise filtering surge protecting high voltage circuit breaker, a high power factor correction rectifier, a DC (direct current) bus, an inverter, a high power charger, a first battery contact, a second battery contact, a DC/DC convertor and an AC output. The present disclosure integrates a noise filter, a surge protector and a high voltage circuit breaker, and integrates a high power charger in the same circuit board. Therefore, the present disclosure lowers the material and production costs of UPS products, and decreases the circuit board size. In addition, the present disclosure decreases the total harmonic distortion, the ripples of input current, and the crosstalk between circuits, and increases the input power factor, the charging efficiency and the battery life.