INVERTER DEVICE AND METHOD OF CONTROLLING THE SAME
First Claim
1. An inverter device, comprising:
- an inverter circuit configured to drive and control an electric motor;
a control circuit comprising a controller, which is configured to supply a gate signal to the inverter circuit, and a power supply circuit;
a start management terminal through which a start signal for starting the power supply circuit and a drive prohibition signal for prohibiting the control circuit from driving and controlling the electric motor are to be input from outside the inverter device; and
a start switch, which is connected between the start management terminal and the control circuit, and is configured to be turned on upon receiving the start signal as input, to thereby supply external electric power to the power supply circuit and drive the power supply circuit, and to hold an on state during a period in which a hold signal from the controller is received,the controller comprising;
a power supply holding unit configured to output the hold signal after the power supply circuit is started; and
a drive and control determination unit configured to determine whether or not to drive and control the electric motor depending on a state of the start signal after the power supply circuit is started.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided are an inverter device, which is capable of preventing a malfunction of the inverter device while reducing the number of interface wirings, and a method of controlling the inverter device. A communication terminal of a communication circuit having a function of communicating to/from a vehicle, an input terminal for a start signal for starting a control circuit, and a signal for holding the control circuit active even when the start signal is changed after the start of the control circuit are used. A drive prohibition signal issued from the vehicle is received through the same terminal as that for the start signal to unify terminals for the start signal and the drive prohibition signal, to thereby reduce the number of interface wirings.
4 Citations
17 Claims
-
1. An inverter device, comprising:
-
an inverter circuit configured to drive and control an electric motor; a control circuit comprising a controller, which is configured to supply a gate signal to the inverter circuit, and a power supply circuit; a start management terminal through which a start signal for starting the power supply circuit and a drive prohibition signal for prohibiting the control circuit from driving and controlling the electric motor are to be input from outside the inverter device; and a start switch, which is connected between the start management terminal and the control circuit, and is configured to be turned on upon receiving the start signal as input, to thereby supply external electric power to the power supply circuit and drive the power supply circuit, and to hold an on state during a period in which a hold signal from the controller is received, the controller comprising; a power supply holding unit configured to output the hold signal after the power supply circuit is started; and a drive and control determination unit configured to determine whether or not to drive and control the electric motor depending on a state of the start signal after the power supply circuit is started. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method of controlling an inverter device,
the inverter device comprising: -
an inverter circuit configured to drive and control an electric motor; a control circuit comprising a controller, which is configured to supply a gate signal to the inverter circuit, and a power supply circuit; a start management terminal through which a start signal for starting the power supply circuit and a drive prohibition signal for prohibiting the control circuit from driving and controlling the electric motor are to be input from outside the inverter device; and a start switch, which is connected between the start management terminal and the control circuit, and is configured to be turned on upon receiving the start signal as input, and to supply external electric power to the power supply circuit and drive the power supply circuit, the method comprising; outputting, after the power supply circuit is started with the start signal, a hold signal to the start switch to cause the start switch to hold an on state during a period in which the hold signal is received; and determining whether or not to drive and control the electric motor depending on a state of the start signal after the power supply circuit is started.
-
Specification