摘要:
The present invention provides a controller that operates using two different processors. Each processor performs certain predetermined functions. A control processor is responsible for switching AC power distribution and control, while a message processor is responsible for messaging. A polling scheme and arbitration logic prevent data transfers relating to these two processors from interfering with each other. A configurable interface allows many different types of appliances to attach to the system, and a serial multimode interface further enhances the configurability of the system.
摘要:
A controller that operates using two different processors is provided. Each processor performs certain predetermined functions. A control processor is responsible for switching AC power distribution and control, while a message processors is responsible for messaging. A polling scheme and arbitration logic prevent data transfers relating to these two processors from interfering with each other. A configurable interface allows many different types of appliances to attach to the system, and a serial multimode interface further enhances the configurability of the system.
摘要:
The present invention uses a logic control to determine which of a plurality of processors receives priority, and generates WAIT signals for the non-selected processor. Further, user configurable pins exist that allow the user to determine the priority that the attached processor will obtain when simultaneous chip selects are transmitted.
摘要:
A voltage regulator, according to the present invention, can operate with or without an external power transistor to generate a regulated output voltage. The voltage regulator determines whether an external power transistor is connected thereto. The voltage regulator then automatically sets a frequency compensation scheme that depends on whether an external power transistor has been detected.
摘要:
A system for managing energy stored in a plurality of series connected energy storage units has a plurality of energy storage unit controllers, each controller being associated with one of the plurality of energy storage units, a balancing circuit between two of the energy storage units, the balancing circuit being controlled by at least one of the energy storage unit controllers, a serial electrical interface between the energy storage unit controllers for providing voltage isolated bi-directional communication, and a central controller in electrical communication with the energy storage unit controllers. A method for managing charge in a plurality of series connected energy storage units forming an energy storage device includes monitoring a current supplied to the energy storage device, determining at least one of a charging rate and a capacity of a first energy storage unit and a second energy storage unit in the energy storage device, and diverting current from the first energy storage unit to the second energy storage unit in response to the steps of monitoring and determining.
摘要:
A system for managing energy stored in a plurality of series connected energy storage units has a plurality of energy storage unit controllers, each controller being associated with one of the plurality of energy storage units, a balancing circuit between two of the energy storage units, the balancing circuit being controlled by at least one of the energy storage unit controllers, a serial electrical interface between the energy storage unit controllers for providing voltage isolated bi-directional communication, and a central controller in electrical communication with the energy storage unit controllers. A method for managing charge in a plurality of series connected energy storage units forming an energy storage device includes monitoring a current supplied to the energy storage device, determining at least one of a charging rate and a capacity of a first energy storage unit and a second energy storage unit in the energy storage device, and diverting current from the first energy storage unit to the second energy storage unit in response to the steps of monitoring and determining.
摘要:
Apparatus whereby data processing units exchange information with each other through a common memory without delay caused by limiting access to the memory to one data processing unit at a time.The invention includes a pair of random access memories (RAMS); a first logic circuit controlled by one of the data processing units (DPU) and the address signals from both DPUs; first and second sets of gates controlled by the first logic circuit to allow one DPU access to one RAM while the other DPU has access to the other RAM; and a second logic circuit (or "handshake" circuitry) to coordinate operation of the DPUs so that each DPU has read/write access to one or the other of the RAMs at all times. In operation, one DPU has access to one RAM while the other DPU has access to the other RAM. At the appropriate time, as determined by the handshake logic circuitry, the DPU access is switched between RAMs.
摘要:
A system for managing energy stored in a plurality of series connected energy storage units has a plurality of energy storage unit controllers, each associated with one of the plurality of energy storage units, a balancing circuit between two of the energy storage units, being controlled by at least one of the energy storage unit controllers, a serial electrical interface between the energy storage unit controllers providing voltage isolated bi-directional communication, and a central controller in electrical communication with the energy storage unit controllers. A method for managing charge in a plurality of series connected energy storage units in which current is diverted from the first energy storage unit to the second energy storage unit.
摘要:
A system for managing energy stored in a plurality of series connected energy storage units has a plurality of energy storage unit controllers, each controller being associated with one of the plurality of energy storage units, a balancing circuit between two of the energy storage units, the balancing circuit being controlled by at least one of the energy storage unit controllers, a serial electrical interface between the energy storage unit controllers for providing voltage isolated bi-directional communication, and a central controller in electrical communication with the energy storage unit controllers. A method for managing charge in a plurality of series connected energy storage units forming an energy storage device includes monitoring a current supplied to the energy storage device, determining at least one of a charging rate and a capacity of a first energy storage unit and a second energy storage unit in the energy storage device, and diverting current from the first energy storage unit to the second energy storage unit in response to the steps of monitoring and determining.
摘要:
An intelligent vending system such as a pay telephone provides local/remote diagnostics, fraud prevention, capability of facilitating local coin overtime operation, complete cash box accounting, and detailed reporting. Information regarding each transaction is recorded and is useful in verification, by way of example. The system includes a delta-sigma driver for reducing circuit complexity and improving circuit reliability, and a one-wire, high speed communication controller which facilitates high speed downloading and uploading of data, records, and operating program code. Battery management techniques, memory management, and coin detection circuits add to the system's capabilities and reliability. Firmware security techniques and operating system formats also promote product firmware security and configuration control.