摘要:
A temperature of an electrolytic capacitor 24 incorporated in equipment is detected, a remaining lifetime in actual use is calculated based on a temperature-lifetime law, and the remaining lifetime is indicated. A thin film tape 23 is wound around a temperature sensor 22 for insulation, and the electrolytic capacitor 24 and the temperature sensor 22 are accommodated in a heat-shrinkable tube 25, the secondary temperature sensor 22 is brought into tight contact with the primary electrolytic capacitor 24.
摘要:
The power supply unit comprises a power supply circuit accommodating chamber A and an arithmetic circuit accommodating chamber B partitioned from each other by a partition wall, and power supply circuit substrates 7 and 8 and an arithmetic circuit substrate 12 are accommodated in the power supply circuit accommodating chamber A and the arithmetic circuit accommodating chamber B, respectively. A connector of the power supply circuit substrate 8 and a connector of the arithmetic circuit substrate 12 are connected to each other through the partition wall of the power supply circuit accommodating chamber A and the arithmetic circuit accommodating chamber B.
摘要:
A method for identifying a cause for insufficiency of an output voltage reduced to or below an undervoltage set value comprises a first comparison step for comparing the output voltage to a fixed first undervoltage set value and a second comparison step for comparing the output voltage to a second undervoltage set value that follows up the output voltage with a time lag, wherein the cause for the output voltage insufficiency is identified based on the steps and notified as a warning. As a preferable mode, the first undervoltage set value is set by means of a reverse conducting voltage of a voltage regulating diode D1 and the second undervoltage set value is set by means of a charging voltage of a capacitor C1 for directly or indirectly charging the output voltage.
摘要:
A method for identifying a cause for insufficiency of an output voltage reduced to or below an undervoltage set value comprises a first comparison step for comparing the output voltage to a fixed first undervoltage set value and a second comparison step for comparing the output voltage to a second undervoltage set value that follows up the output voltage with a time lag, wherein the cause for the output voltage insufficiency is identified based on the steps and notified as a warning. As a preferable mode, the first undervoltage set value is set by means of a reverse conducting voltage of a voltage regulating diode D1 and the second undervoltage set value is set by means of a charging voltage of a capacitor C1 for directly or indirectly charging the output voltage.