US 11,870,240 B1
EFuse for use in high voltage applications
Venkatesh Prasad Hanglur Narasimha, San Mateo, CA (US); and James Michael Castelaz, Alameda, CA (US)
Assigned to Motiv Power Systems, Inc., Foster City, CA (US)
Filed by Motiv Power Systems, Inc., Foster City, CA (US)
Filed on Nov. 30, 2021, as Appl. No. 17/538,525.
Application 17/538,525 is a continuation of application No. 16/865,273, filed on May 1, 2020, granted, now 11,201,459.
Claims priority of provisional application 62/842,521, filed on May 2, 2019.
This patent is subject to a terminal disclaimer.
Int. Cl. H02H 3/20 (2006.01); G08B 23/00 (2006.01); H02H 9/04 (2006.01); H02H 3/08 (2006.01); H02H 3/38 (2006.01); H02H 7/22 (2006.01); H02H 1/04 (2006.01)
CPC H02H 3/20 (2013.01) [G08B 23/00 (2013.01); H02H 3/08 (2013.01); H02H 3/207 (2013.01); H02H 3/38 (2013.01); H02H 9/04 (2013.01); H02H 1/04 (2013.01); H02H 1/043 (2013.01); H02H 7/22 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a switch that switches a load current from a high voltage source through a high voltage load, wherein the switch is controlled to turn off when a voltage at a voltage sense terminal exceeds a selected voltage level;
a diode coupled to the voltage sense terminal;
a capacitor coupled to the voltage sense terminal; and
a temperature sensing element coupled to the voltage sense terminal, wherein the temperature sensing element couples to the voltage sense terminal via a resistor.