Patent ID: 11936302
Assignee: FUJI ELECTRIC CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 0:
1. A detection circuit that receives a pulse signal, comprising:
a temperature voltage generator circuit configured to
generate a detection voltage corresponding to a temperature of the detection circuit, based on a predetermined constant current, when the pulse signal is at a first level, and
stop generating the detection voltage, when the pulse signal is at a second level; and

an output circuit configured to
output a detection signal indicating whether the temperature is higher than a predetermined temperature based on the detection voltage, during a period of time between
a first time that is a predetermined time period after the pulse signal reaches the first level,

and
a second time at which the pulse signal
switches from the first level to the second level, the pulse signal remaining in the first level in the period of time.