A DC-DC converter includes a first switch, and a first diode in parallel with the first switch, a second switch, and a second diode in parallel with the second switch, a third switch, and a third diode in parallel with the third switch, a fourth switch, and a fourth diode in parallel with the…
Provided is a flyback converter. A converter includes an input unit to which input voltage is applied, a switching unit configured to convert the input voltage into an alternating current (AC) voltage, a transformer comprising a primary side to which the AC voltage is applied and a secondary side…
A power converter topology, comprising: a cascade connection of a first converter stage and a second converter stage; wherein the first converter stage comprises a current mode controlled pulse width modulation (PWM) converter having one or more pairs of switches forming a first switching bridge…
An active-clamped isolated SEPIC DC-DC power converter (ACISC) to convert a DC voltage to supply a variety of DC loads. The single-ended primary-inductor converter (SEPIC) of the ACISC may be configured to perform both buck and boost converter functions. The ACISC of this disclosure may be…
For a programmable direct current (DC)-DC converter application, a driver system includes a switched mode power circuit for providing a DC power signal to an electrical load and a control block. Control block includes interfaces coupled to receive at least one input signal from a low voltage region…
A control circuit is configured to control a flyback circuit comprising a primary-side switch, a secondary-side rectifier and a transformer. The control circuit comprises a feedback control circuit configured to generate a secondary-side control signal based on a current ripple signal of the…
An inductive charging circuit coupled to a winding of a power converter and a supply terminal of a controller of the power converter. The inductive charging circuit comprising an input coupled to the winding, the input coupled to receive a switching voltage generated by the power converter, an…
A standby power system for a flyback converter is disclosed. The flyback converter includes a primary-side, a secondary-side, an output terminal at the secondary-side, and a secondary-side controller, where the output terminal is configured to electrically connect to a load. The standby power…
A charging and discharging device includes a transformer consisting of a primary winding and multiple secondary windings including at least a first secondary winding and a second secondary winding; multiple ports electrically connected to the primary winding and the multiple secondary windings of…
In at least one embodiment, a vehicle battery charger is provided. At least one transformer includes a first winding and a second winding on a primary side of the transformer that are connected to one another to form a middle point. The middle point of the at least one transformer receives an input…
A converter module is provided with a first power delivery circuit, a second power delivery circuit, and a controller. The first power delivery circuit supplies current from a first direct current (DC) source to a resonant stage in a first direction. The first power delivery circuit comprises at…
An isolated switching power converter having a primary-side and secondary-side in signal communication with an input and an output is disclosed. The isolated switching power converter comprises a transformer, primary-side switch, secondary-side switch, primary-side controller, and secondary-side…
This application discloses a phase alignment circuit and method of a receive end, and a receive end, where the phase alignment circuit and method of a receive end. The receive end is located on the electric vehicle. The circuit includes: a phase measurement circuit and a controller. The controller…
For a programmable direct current (DC)-DC converter application, a driver system includes a switched mode power circuit for providing a DC power signal to an electrical load and a control block. Control block includes interfaces coupled to receive at least one real-time input signal from a low…
An inductive charging circuit coupled to a winding of a power converter and a supply terminal of a controller of the power converter. The inductive charging circuit comprising an input coupled to the winding, the input coupled to receive a switching voltage generated by the power converter, an…
A switching power circuit for charging a battery can include: four switches extending between two ports of a low-frequency AC input voltage and an energy storage circuit, where the energy storage circuit and a primary winding of a transformer are coupled between first and second nodes, the first…
This application discloses a phase alignment circuit and a method of a receive end, and a receive end. The receive end is located on an electric vehicle. The phase alignment circuit includes a phase measurement circuit and a controller. The controller is configured to: use, as an actual phase shift…
The present application discloses a wake-up method and wake-up system for a battery management system. The method may include converting, by a conversion unit, a low-voltage power signal detected at a low-voltage input port into a high-voltage wake-up signal, and receiving, by a high-voltage…
A synchronous switching scheme with adaptive slew control in order to adiabatically charge and discharge a capacitor to recycle charge and generate a boosted voltage on the gate of the synchronous rectifier field effect transistor (FET) is described. In one embodiment, an apparatus includes a…
Controlling an active clamp field effect transistor (FET) in a secondary-controlled active clamp converter is described. In one embodiment, an apparatus includes a primary-side FET coupled to a transformer, a secondary-side FET coupled to the transformer, and an active clamp FET disposed on a…
A transient current in a rectifier circuit is effectively reduced. In the rectifier circuit, a current flows from a power supply to a coil when a transistor is turned ON. When the transistor is turned OFF, the current of the coil generates a first reverse voltage to be applied to the rectifier.
The invention relates to an insulated DC-DC converter, in particular for a motor vehicle, comprising—a first circuit, connected to a first electrical grid, and including a primary branch comprising at least one induction coil,—a second circuit, connected to a second electrical grid, and comprising…