US 12,446,133 B2
Circuit protection device and system with power supply conversion and control for DC loads
Toni Ott, Neckargemünd (DE); and Joseph Manahan, Manlius (DE)
Assigned to EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Appl. No. 17/797,346
Filed by EATON INTELLIGENT POWER LIMITED, Dublin (IE)
PCT Filed Jan. 27, 2021, PCT No. PCT/EP2021/025030
§ 371(c)(1), (2) Date Aug. 3, 2022,
PCT Pub. No. WO2021/151623, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 102020102399.5 (DE), filed on Jan. 31, 2020.
Prior Publication US 2023/0054080 A1, Feb. 23, 2023
Int. Cl. H05B 45/56 (2020.01); H02H 5/04 (2006.01); H05B 45/3725 (2020.01)
CPC H05B 45/56 (2020.01) [H02H 5/04 (2013.01); H05B 45/3725 (2020.01)] 20 Claims
OG exemplary drawing
 
1. An electrical power conversion and control system comprising:
a circuit protection device comprising:
a housing;
a line-side terminal and a load-side terminal;
at least one solid state switching element operable in an arc-free manner to limit or preclude electrical current flow from the line-side terminal to the load-side terminal; and
a load controller in the housing and including a power converter circuitry operative to convert an alternating current (AC) power supply input to the line-side terminal to a direct current (DC) power output at the load side terminal, wherein the load controller is configured to adjust an output pulsed DC power to a DC load device.
 
18. An electrical power conversion and control system comprising:
a circuit protection device comprising:
a housing;
a line-side terminal and a load-side terminal;
at least one solid state switching element operable in an arc-free manner to limit or preclude electrical current flow from the line-side terminal to the load-side terminal; and
a load controller in the housing and including a power converter circuitry operative to convert an alternating current (AC) power supply input to the line-side terminal to a direct current (DC) power output at the load side terminal, wherein the electrical power conversion and control system further comprises at least one DC load device, and wherein the at least one DC load device includes a DC/DC power converter.
 
19. An electrical power conversion and control system comprising:
a circuit protection device comprising:
a housing;
a line-side terminal and a load-side terminal;
at least one solid state switching element operable in an arc-free manner to limit or preclude electrical current flow from the line-side terminal to the load-side terminal; and
a load controller in the housing and including a power converter circuitry operative to convert an alternating current (AC) power supply input to the line-side terminal to a direct current (DC) power output at the load side terminal, wherein the electrical power conversion and control system further comprises at least one DC load device, wherein the at least one DC load device comprises a plurality of DC loads connected in series to one another and to the load-side terminal of the circuit protection device, and wherein the plurality of DC loads comprises a plurality of light emitting diode (LED) luminaires.
 
20. An electrical power conversion and control system comprising:
a circuit protection device comprising:
a housing;
a line-side terminal and a load-side terminal;
at least one solid state switching element operable in an arc-free manner to limit or preclude electrical current flow from the line-side terminal to the load-side terminal; and
a load controller in the housing and including a power converter circuitry operative to convert an alternating current (AC) power supply input to the line-side terminal to a direct current (DC) power output at the load side terminal, wherein the electrical power conversion and control system further comprises at least one mechanical switch contact connected between the line-side terminal and the load-side terminal in a switch device, and wherein the housing of the switch device includes a sealed internal enclosure containing the at least one mechanical switch contact, thereby precluding the switch contact from being an ignition source in a hazardous location.