Voltage control utilizing multiple PWM patterns
摘要
說(shuō)明書(shū)
Some embodiments of the present disclosure can be illustrated as a power-delivery system. The power-delivery system may comprise a load device and a direct-current converter configured to deliver current to the load device when the direct-current converter is in an on state. The power-delivery system may further comprise a voltage measurement system that is configured to measure a voltage at the load device at the beginning of each measurement cycle in a cyclic measurement pattern. The power-delivery system may further comprise a power controller. The power controller may be configured to receive the measurement of the voltage at the beginning of each measurement cycle in the cyclic measurement pattern. The power controller may further be configured to perform, at the beginning of a control cycle in a cyclic control pattern, a voltage-control decision in response to first change in the measurement of the voltage being below a voltage-change threshold. This voltage-control decision may comprise a decision of whether to switch the state of direct-current converter. The first cyclic control pattern may operate at a first frequency. The second cyclic control pattern and the cyclic measurement pattern operate at a second frequency. The second frequency may be a positive integer multiple of the first frequency. The positive-integer multiple may be greater than 1. The beginning of the first control cycle may coincide with the beginning of a measurement cycle.
