Patent ID: 7528581
Filing Date: 2009-05-05
Classification: B60L,G01R,H01M,H02J,Y02E,Y02T

Abstract:
1. A battery apparatus comprising: plural battery modules each having plural battery cells, said plural battery modules being connected in series; and plural first control devices, being provided corresponding to the plural battery modules, to receive a command signal which is transmitted from a second control device through an isolator and detect a status of the plural battery cells which are included in a corresponding battery module, wherein the plural first control devices are integrated circuits having input and output signal circuits, voltage detecting circuits, input signal terminals, output signal terminals, and detecting terminals, said input and output signal circuits receiving a signal through said input signal terminals and sending a signal through said output signal terminals, and said voltage detecting circuits detecting a voltage of each of the corresponding plural battery cells through said detecting terminals, and said integrated circuits have different reference potentials, and are connected in series by connecting said output signal terminals and said input signal terminals between the serially connected integrated circuits which are connected in an electrically non-isolated manner.