Voltage monitoring system and voltage monitoring module
A voltage monitoring and voltage technology, applied in charge balancing circuits, battery circuit devices, circuit monitoring/indication, etc., can solve problems such as voltage difference, battery pack performance degradation, and current consumption speed difference
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 example
[0035] Embodiments of the present invention are described next while referring to the drawings. In the drawings, the same reference numerals are given to the same elements, and unnecessary redundant parts are omitted.
[0036] Next, a voltage monitoring system for monitoring an output voltage of a storage battery pack that supplies electric power to, for example, an electric vehicle is described assuming a case where understanding of the embodiments of the present invention is required. first reference figure 1 An overview of a voltage monitoring system VMS for monitoring the output voltage of a battery pack supplying electric power to, for example, an electric vehicle is described. figure 1 is a block diagram showing the configuration of a voltage monitoring system VMS for monitoring the output voltage of a battery pack that supplies electric power to an electric vehicle or the like. The voltage monitoring system VMS includes voltage monitoring modules VMM1 to VMMn (n is ...
no. 2 example
[0141] The second embodiment is described by using an example that is a modification of the regulator circuit 11 and the adjustment current control circuit 12 . Figure 15 is a block diagram showing a regulator circuit 11 a as a modified or modified example of the regulator circuit 11 and an adjusted current control circuit 12 a as a modified or modified example of the adjusted current control circuit 12 .
[0142] exist Figure 15 In the regulator circuit 11a shown in , the output transistor P0 of the regulator circuit 11 is replaced by an output transistor N1 composed of an NMOS transistor.
[0143] In addition, as in Figure 15 In the adjustment current control circuit 12a shown in , the PMOS transistor P1 of the adjustment current control circuit 12 is replaced by a current mirror circuit composed of PMOS transistors P3 and P4. Reference numeral 23a is given to the current setting circuit including these PMOS transistors P3 and P4.
[0144] The source of the output tran...
no. 3 example
[0149] Figure 16 is a block diagram of the voltage monitoring system of the third embodiment. in such as Figure 16 In the voltage monitoring system of the third embodiment shown in , one battery cell monitoring unit CMU is coupled to one voltage monitoring module. The battery cell monitoring unit CMU then communicates with the battery management unit BMU by means of corresponding isolating elements and a CAN interface.
[0150] The battery cell monitoring unit CMU of the third embodiment is supplied with power from the power supply circuit of the voltage monitoring module, and executes an instruction for reading (or loading) a measured value from the voltage monitoring module and for generating Instructions for measured values. The battery unit monitoring unit CMU also sends the data obtained from the voltage monitoring module to the battery management unit BMU according to the request from the battery management unit BMU. The battery cell monitoring unit CMU of the thir...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More