Abstract: In a semiconductor device according to the related art, unfortunately, a non-safety unit mounted on the same device as a safety unit is modified with low flexibility. According to one embodiment, a first semiconductor chip and a second semiconductor chip each have space domain separation hardware for limiting access to hardware resources in a functional safety system. Safety unit software and space domain and time domain separation software are executed in a time sharing manner. Based on a timer installed on the semiconductor chip, the space domain and time domain separation software performs separation for intermittently executing the safety unit software in a predetermined cycle, self-diagnosis for examining an operation of the safety unit software, and mutual diagnosis made between the first semiconductor chip and the second semiconductor chip to mutually diagnose the operation of the space domain and time domain separation software for performing the separation and the self-diagnosis.

Abstract: A functional safety system with high reliability is provided. The functional safety system includes power source apparatuses VS1 and VS2, voltage monitoring apparatuses VM1 and VM2, semiconductor devices SC1 and SC2, interruption circuits IN1 and IN2, and a motor MT. A the voltage converting circuit DA1 of the voltage monitoring apparatus VM1 generates a detected voltage VA1 from a power source voltage VDD1 on the basis of a switching signal VC1, and a voltage converting circuit DA2 of the voltage monitoring apparatus VM1 generates a detected voltage VA2 from the power source voltage VDD1 on the basis of a switching signal VC1.

Abstract: A functional safety system with high reliability is provided. The functional safety system includes power source apparatuses VS1 and VS2, voltage monitoring apparatuses VM1 and VM2, semiconductor devices SC1 and SC2, interruption circuits IN1 and IN2, and a motor MT. A the voltage converting circuit DA1 of the voltage monitoring apparatus VM1 generates a detected voltage VA1 from a power source voltage VDD1 on the basis of a switching signal VC1, and a voltage converting circuit DA2 of the voltage monitoring apparatus VM1 generates a detected voltage VA2 from the power source voltage VDD1 on the basis of a switching signal VC1.

Abstract: According to an aspect of a present invention, there is provided a semiconductor device including a first power monitoring device and a second power monitoring device. The first power monitoring device outputs first operating power that is to be supplied to a second control section. The second power monitoring device outputs second operating power that is to be supplied to a first control section. Based on a first setting given from the first control section, a first power monitoring circuit autonomously verifies whether the second operating power is normal, and periodically transmits the result of verification to the second control section as first error information. Based on a second setting given from the second control section, a second power monitoring circuit autonomously verifies whether the first operating power is normal, and periodically transmits the result of verification to the first control section as second error information.

Abstract: In a semiconductor device according to the related art, unfortunately, a non-safety unit mounted on the same device as a safety unit is modified with low flexibility. According to one embodiment, a first semiconductor chip and a second semiconductor chip each have space domain separation hardware for limiting access to hardware resources in a functional safety system. Safety unit software and space domain and time domain separation software are executed in a time sharing manner. Based on a timer installed on the semiconductor chip, the space domain and time domain separation software performs separation for intermittently executing the safety unit software in a predetermined cycle, self-diagnosis for examining an operation of the safety unit software, and mutual diagnosis made between the first semiconductor chip and the second semiconductor chip to mutually diagnose the operation of the space domain and time domain separation software for performing the separation and the self-diagnosis.

Abstract: According to an aspect of a present invention, there is provided a semiconductor device including a first power monitoring device and a second power monitoring device. The first power monitoring device outputs first operating power that is to be supplied to a second control section. The second power monitoring device outputs second operating power that is to be supplied to a first control section. Based on a first setting given from the first control section, a first power monitoring circuit autonomously verifies whether the second operating power is normal, and periodically transmits the result of verification to the second control section as first error information. Based on a second setting given from the second control section, a second power monitoring circuit autonomously verifies whether the first operating power is normal, and periodically transmits the result of verification to the first control section as second error information.

Abstract: The present invention provides a non-contact charging system which can transmit the information on the reception state from an electric power receiving device to an electric power transmitting device while performing the electric power reception. The non-contact charging system is configured with an electric power transmitting device which performs electric power transmission at a resonance frequency and an electric power receiving device which performs electric power reception at the resonance frequency. The electric power receiving device includes an adjustment unit which can adjust the resonance frequency; and a receiving-side control unit for adjusting the resonance frequency when a prescribed condition is satisfied.