Multiphase power processing circuit and method for control thereof
AssigneeShanghai Bright Power Semiconductor Co., Ltd.
InventorShungen Sun
Life of this patent
Estimating the term…
Abstract
Multiphase power processing circuit and a method for control thereof are disclosed, with which, exchange of data is achievable between a multiphase controller and any of power processing circuits via pins of at least two of the three categories, Enable, PWM and Temperature Indicator, of the multiphase controller. The exchanged data may include, but is not limited to, a phase identifier, an over-current protection threshold, an over-current protection threshold, an over-temperature protection threshold, a current sampling gain, a current sampling bias, a temperature sampling gain, a temperature sampling bias, a drive speed and the like of the power processing circuit. In this way, improvements in system flexibility and security are obtained.
Claims13
A multiphase power processing circuit, comprising:
- a multiphase controller comprising pins of three categories, PWM, Enable and Temperature Indicator, the multiphase controller comprising a plurality of PWM pins;
- a plurality of power processing circuits each coupled to a corresponding one of the plurality of PWM pins of the multiphase controller, each of the plurality of power processing circuits coupled to an Enable pin and a Temperature Indicator pin of the multiphase controller, wherein the multiphase controller is configured for exchange of data with any of the power processing circuits via pins of at least two of the three categories,
- wherein a signal at the Enable pin is configured by the multiphase controller to have a first state representing an operating mode or a second state representing a first data mode, and wherein the exchange further comprises:
- controlling the signal at the Enable pin to have the second state so that the power processing circuit enters the first data mode;
- and
- in the first data mode, configuring a pin of one of the three categories as a clock bus that provides a clock signal and a pin of another one of the three categories as a data bus used for exchanging data between the multiphase controller and each of the plurality of power processing circuits.
A multiphase power processing circuit, comprising:
- a multiphase controller comprising pins of three categories, PWM, Enable and Temperature Indicator, the multiphase controller comprising a plurality of PWM pins;
- a plurality of power processing circuits each coupled to a corresponding one of the plurality of PWM pins of the multiphase controller, each of the plurality of power processing circuits coupled to an Enable pin and a Temperature Indicator pin of the multiphase controller, wherein the multiphase controller is configured for exchange of data with any of the power processing circuits via pins of at least two of the three categories,
- wherein a signal at the Temperature Indicator pin is configured by the multiphase controller to have a third state representing an operating mode or a fourth state representing a second data mode, and wherein the exchange further comprises:
- controlling the signal at the Temperature Indicator pin to have the fourth state so that the power processing circuit enters the second data mode;
- and
- in the second data mode, configuring a pin of one of the three categories as a clock bus that provides a clock signal and a pin of another one of the three categories as a data bus and used for exchanging data between the multiphase controller and each of the plurality of power processing circuits.
Dependencies are inferred from the claim text.