Battery power delivery module
A system and method for digital management and control of power conversion from battery cells. The system utilizes a power management and conversion module that uses a CPU to maintain a high power conversion efficiency over a wide range of loads and to manage charge and discharge operation of the battery cells. The power management and conversion module includes the CPU, a current sense unit, a charge/discharge unit, a DC-to-DC conversion unit, a battery protection unit, a fuel gauge and an internal DC regulation unit. Through intelligent power conversion and charge/discharge operations, a given battery type is given the ability to emulate other battery types by conversion of the output voltage of the battery and adaptation of the charging scheme to suit the battery.
1. A power converter, comprising:
input terminals configured to connect to a battery module;
output terminals configured to provide power from the battery module to a load;
one or more telemetry terminals configured to receive an internal temperature of the battery module;
a conversion circuit configured to transfer power between the input terminals and the output terminals; and
a central processing unit configured to communicate the internal temperature to a host device.
2. The power converter of claim 1 , wherein the one or more telemetry terminals are configured to receive at least one of a state of charge of the battery module, a state of health of the battery module, a date of production of the battery module, a number of charge cycles of the battery module, a capacity of the battery module, or a chemistry of the battery module.
3. The power converter of claim 1 , wherein the battery module comprises a plurality of battery cells, and wherein the internal temperature of the battery module is the internal temperature of one of the plurality of battery cells.
4. The power converter of claim 1 , wherein the conversion circuit further comprises:
a current sensor; and
a battery protection circuit connected to the current sensor, wherein the battery protection circuit is configured to determine a condition of the battery module based on a current value from the current sensor.
5. The power converter of claim 1 , wherein the conversion circuit further comprises:
a current sensor; and
a fuel gauging circuit connected to the current sensor, wherein the fuel gauging circuit monitors a state of charge of the battery module based on a current value from the current sensor.
6. The power converter of claim 1 , wherein the conversion circuit comprises a current sensor and at least one of a buck converter, a boost converter, a buck/boost converter, or a Cuk converter.
7. The power converter of claim 1 , wherein the central processing unit uses the one or more telemetry terminals to receive, from the host device, a request for a desired output voltage of the battery module.
8. The power converter of claim 1 , wherein the one or more telemetry terminals comprise a host telemetry terminal and a battery telemetry terminal.
9. The power converter of claim 1 , wherein the output terminals receive power for charging the battery module.
10. A power converter, comprising:
input terminals configured to connect to a battery module;
output terminals configured to provide power from the battery module to a load;
one or more telemetry terminals configured to receive a state of charge of the battery module;
a conversion circuit configured to transfer power between the input terminals and the output terminals; and
a central processing unit configured to communicate the state of charge to a host device.
11. The power converter of claim 10 , wherein the one or more telemetry terminals are configured to receive at least one of an internal temperature of the battery module, a state of health of the battery module, a date of production of the battery module, a number of charge cycles of the battery module, a capacity of the battery module, or a chemistry of the battery module.
12. The power converter of claim 10 , wherein the battery module comprises a plurality of battery cells, and wherein the state of charge of the battery module is the state of charge of one of the plurality of battery cells.
13. The power converter of claim 10 , wherein the conversion circuit further comprises:
a current sensor ; and
a battery protection circuit connected to the current sensor, wherein the battery protection circuit is configured to determine a condition of the battery module based on a current value from the current sensor.
14. The power converter of claim 10 , wherein the conversion circuit further comprises:
a current sensor; and
a fuel gauging circuit connected to the current sensor, wherein the fuel gauging circuit monitors the state of charge of the battery module based on a current value from the current sensor.
15. The power converter of claim 10 , wherein the conversion circuit comprises a current sensor and at least one of a buck converter, a boost converter, a buck/boost converter, or a Cuk converter.
16. The power converter of claim 10 , wherein the central processing unit uses the one or more telemetry terminals to receive, from the host device, a request for a desired output voltage of the battery module.
17. The power converter of claim 10 , wherein the one or more telemetry terminals comprise a host telemetry terminal and a battery telemetry terminal.
18. The power converter of claim 10 , wherein the output terminals receive power for charging the battery module.
19. A method, comprising:
receiving, by a power converter through input terminals connected to a battery module, battery power comprising a first voltage;
converting, by the power converter, the battery power to converted power comprising a second voltage;
providing, by the power converter through output terminals connected to a load, the converted power; and
sending, to a host device through a telemetry terminal of the power converter, an internal temperature of the battery module.
20. The method of claim 19 , further comprising:
receiving, through a second telemetry terminal of the power converter, the internal temperature of the battery module.