Drive circuit
AssigneeSolaredge Technologies Ltd.
InventorsOfir Bieber, Shay Avner, Tomer Bar-On
Life of this patent
Estimating the term…
Abstract
A fully isolated drive circuit to be used for regulating an output voltage across a load. The isolated drive circuit may charge, discharge, or preserve the load charge using a controller that controls one or more switches. The controller may operate a switch according to an internal/external clock or an external control signal received by the controller. The isolated drive circuit may be an effective solution to simplify the drive design and decrease the amount of energy dissipated by the drive, especially when the load, associated with the drive, requires a high input voltage level.
Claims19
An apparatus comprising:
- a synchronization circuit configured to generate a pre-charge signal based on a first enable signal;
- an inductive element;
- and
- a switching circuit coupled to the inductive element and configured to switch, based on the first enable signal or the pre-charge signal, between different states of the apparatus, wherein the different states comprise a first state in which a voltage is applied across the inductive element and a second state in which power is transferred between the inductive element and a load, and wherein the switching circuit is configured to charge the load comprising a gate terminal of a transistor of a DC-DC converter;
- and
- a controller configured to control the switching circuit based on a closed loop control of a measured parameter in the DC-DC converter.
A system comprising:
- a synchronization circuit configured to:
- determine, based on a first enable signal, a predicted characteristic of a second enable signal to be received after the first enable signal;
- and
- generate, prior to receipt of the second enable signal and based on the predicted characteristic, a pre-charge signal;
- a controller configured to receive the pre-charge signal and the first enable signal and generate one or more control signals;
- and
- a switching circuit comprising switches and configured to switch, based on the one or more control signals, between a first state in which a voltage is applied across an inductive element and a second state in which power is transferred between the inductive element and a load.
A method comprising:
- receiving a first enable signal for regulating voltage;
- determining, based on the first enable signal, at least one predicted characteristic of a second enable signal to be received after the first enable signal;
- generating, based on the at least one predicted characteristic, a pre-charge signal;
- and
- switching, based on the first enable signal or the pre-charge signal, a switching circuit between a first state in which a voltage is applied across an inductive element and a second state in which power is transferred between the inductive element and a load.
Dependencies are inferred from the claim text.