US 12,476,482 B2
Excitation fuse device and UPS battery circuit
Ying Wang, Guangdong (CN); Wei Xu, Guangdong (CN); and Ping Gong, Guangdong (CN)
Assigned to VERTIV CORPORATION, Westerville, OH (US)
Filed by Vertiv Corporation, Westerville, OH (US)
Filed on Dec. 21, 2023, as Appl. No. 18/393,506.
Claims priority of application No. 202321283698.3 (CN), filed on May 24, 2023.
Prior Publication US 2024/0396368 A1, Nov. 28, 2024
Int. Cl. H02J 9/06 (2006.01); H01H 85/02 (2006.01)
CPC H02J 9/068 (2020.01) [H02J 9/061 (2013.01); H01H 85/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An excitation fuse device comprising an excitation fuse and a voltage driving control module, wherein the excitation fuse includes a current fuse and a detonating breaker; and the voltage driving control module includes a voltage detection circuit, a fusing controller, and a fuse circuit; wherein:
the voltage
detection circuit is configured to detect a voltage of the excitation fuse device and generate a voltage detection signal based on the voltage of the excitation fuse device and a reference voltage;
the fusing controller is configured to receive the voltage detection signal and generate a voltage control signal based on the voltage detection signal and a fuse detection signal; and
the fuse circuit is configured to generate a fusing control signal based on the voltage control signal
for switching off the
detonating breaker;
the current fuse is electrically connected to the fuse circuit through the detonating breaker, the fusing controller is respectively communicatively connected to the voltage detection circuit and the fuse circuit, and the fuse circuit is communicatively connected to the excitation fuse, wherein the fuse circuit
is configured to be fused based on a short-circuit current and includes a first switch transistor, a first diode, and a first resistor, wherein:
a control terminal of the first switch transistor is connected to a cathode of the first diode;
an anode of the first diode receives the voltage control signal;
a first terminal of the first switch transistor is connected to a switch-transistor power supply, and a second terminal of the first switch transistor is connected to the detonating breaker and a first terminal of the first resistor;
a second terminal of the first resistor is grounded; and
the second terminal of the first switch transistor outputs the fusing control signal.