Power and charging system for a marine vessel
A vessel power system configured for a marine vessel includes a rectifier configured to receive an AC power input from a shore power source and provide a DC charging output to charge a battery and an active phase circuit configured to provide a regulated AC output to power onboard AC loads on the marine vessel. The active phase circuit is connected to the output of the rectifier and includes a return connection configured to form a return path for electric current from the onboard AC loads and configured such that the rectifier and the active phase circuit are configured to split the AC power input from the shore power source into the DC charging output to charge the battery and the regulated AC output to power the onboard AC loads.
1 . A vessel power system configured for a marine vessel, the system comprising:
a rectifier configured to receive an AC power input from a shore power source and provide a DC charging output to charge a battery;
an active phase circuit configured to provide a regulated AC output to power onboard AC loads on the marine vessel, wherein the active phase circuit is connected to the output of the rectifier and includes a return connection configured to form a return path for electric current from the onboard AC loads; and
wherein the rectifier and the active phase circuit are configured to split the AC power input from the shore power source into the DC charging output to charge the battery and the regulated AC output to power the onboard AC loads.
2 . The system of claim 1 , wherein the rectifier and the active phase circuit are positioned in a device housing configured to be mounted on the marine vessel.
3 . The system of claim 1 , wherein the active phase circuit comprises a half bridge comprising at least two semiconductor power switches and is in parallel with the DC charging output from the rectifier.
4 . The system of claim 1 , wherein the active phase circuit is configured to provide the regulated AC output regardless of a voltage or phase configuration of the AC power input.
5 . The system of claim 1 , wherein the regulated AC output is a single phase output at a predetermined voltage.
6 . The system of claim 5 , wherein the AC power input is a single phase 120V, 208V, 220V, or 480V input.
7 . The system of claim 5 , wherein the predetermined voltage of the regulated AC output is 120V and a predetermined frequency of the regulated AC output is 50 Hz or 60 Hz.
8 . The system of claim 1 , wherein the return connection connects to one phase of the AC power input.
9 . The system of claim 1 , wherein the AC power input is a multi-phase input comprising a plurality of input phases, and wherein the return connection connects to one of the plurality of input phases or a neutral input.
10 . The system of claim 1 , wherein the AC power input includes a neutral input and wherein the return connection connects to the neutral input.
11 . The system of claim 1 , wherein the active phase circuit is configured to provide two split phase outputs, each at a predetermined voltage.
12 . The system of claim 1 , wherein the active phase circuit is controllable to vary a split of input power from the AC power input between the regulated AC output and the DC charging output.
13 . The system of claim 12 , further comprising a controller configured to control a split of input power from the AC power input between the regulated AC output and the DC charging output.
14 . The system of claim 13 , wherein the controller is further configured to receive a user input indicating a user-desired power split, and wherein the controller is configured to control the split of the input power based on the user input.
15 . An onboard battery charger configured to be installed on a marine vessel to receive an AC power input from a shore power source and to charge at least one battery on the marine vessel, the onboard battery charger comprising:
a rectifier configured to receive an AC power input from a shore power source and provide a DC charging output to charge the battery;
an active phase circuit configured to provide a regulated AC output to power an onboard AC load on the marine vessel, wherein the active phase circuit is connected to the output of the rectifier and includes a return connection configured to form a return path for electric current from the onboard AC load;
wherein the rectifier, the return connection, and the active phase circuit are configured to split the AC power input from the shore power source into the DC charging output to charge the battery and the regulated AC output to power the onboard AC load;
a charger housing configured to mount to the marine vessel, the charger housing comprising an input port configured to receive the AC power input, a DC output port configured to provide the DC charging output to the battery, and an AC output port configured to provide the regulated AC output to power the onboard AC load; and
wherein the rectifier and the active phase circuit are within the charger housing.
16 . The onboard battery charger of claim 15 , wherein the active phase circuit comprises a half bridge comprising at least two semiconductor power switches and is in parallel with the DC charging output from the rectifier.
17 . The onboard battery charger of claim 15 , wherein the active phase circuit is configured to provide the regulated AC output regardless of a voltage or phase configuration of the AC power input.
18 . The onboard battery charger of claim 15 , wherein the return connection connects to one phase of the AC power input.
19 . The onboard battery charger of claim 15 , wherein the AC power input includes a neutral input and wherein the return connection connects to the neutral input.
20 . The onboard battery charger of claim 15 , wherein the active phase circuit is configured to provide two split phase outputs, each at a predetermined voltage.