摘要:
Disclosed is a circuit comprises a first switching transistor (106) and a second switching transistor (108). The first switching transistor and the second switching transistor are coupled in series between an input voltage (V IN ) and ground and having a common node (Switch Node) there between to provide a switching output. A first switching circuit (120) selectively couples a gate (G P ) of the first switching transistor to the input voltage and a first mid-level voltage supply (V LS ). A second switching circuit (118) selectively couples a gate (G N ) of the second switching transistor to a second mid-level voltage supply (V HS ) and ground. A charge-recycling circuit is thereby connected to the gate of the first switching transistor, the gate of the second switching transistor, the first mid-level voltage supply, and the second mid-level voltage supply to selectively recycle charge between the first mid-level voltage supply and the second mid-level voltage supply.
摘要:
In one embodiment, a circuit comprises a first load circuit coupled to a first input voltage. A current sinking circuit is coupled to an output of the first load circuit. A second load circuit is coupled to ground. A current sourcing circuit is coupled between a second input voltage and an output of the second load circuit. A charge-recycling circuit is coupled between the output of the first load circuit and the output of the second load circuit to provide current from the current sinking circuit to the output of the current sourcing circuit to reduce current through the current sourcing circuit. The charge-recycling circuit can be a charge pump.
摘要:
Exemplary embodiments are related to switching power converters. A switching power converter may comprise a plurality of control unit configured for average current mode control, wherein each control unit of the plurality comprises a dedicated proportional control unit. The switching power converter may further comprise an integrator coupled to each control unit of the plurality of control unit and configured to convey a signal to each control unit.
摘要:
The present disclosure includes circuits that have a switching regulator and methods of operating the circuits. The switching regulator may receive a switching signal that has a switching frequency. The circuit also includes a monitor circuit to monitor the switching frequency, and includes a reconfigurable inductance coupled to an output of the switching regulator. The monitor circuit may change the reconfigurable inductance. The circuit includes an amplifier to receive an envelope tracking signal. An output of the amplifier is coupled to the output of the switching regulator to provide a power supply voltage. The circuit may further include a switching generator circuit to produce the switching signal for the switching regulator based on an output current of the amplifier. The monitor circuit may compare a frequency of the envelope tracking signal to the switching frequency of the switching signal and accordingly change the reconfigurable inductance.
摘要:
The present disclosure includes programmable snubber circuits and methods. In one embodiment, a circuit is configured between first and second power supply terminals. A programmable snubber circuit may be configured between the first and second power supplies to reduce ringing on the power supplies. In one embodiment, the circuit is a switching regulator and the power supply terminals are internal power supply terminals. The snubber circuit may be programmed to reduce ringing caused by switching currents through parasitic inductances in a package.
摘要:
In one embodiment, a circuit comprises a charge pump. A gain control circuit is configured to detect an input voltage and generate a gain control signal to change a gain of the charge pump to maintain the output voltage of the charge pump in a voltage range. A voltage to frequency converter is configured to detect the input voltage and change a frequency of a frequency control signal applied to the charge pump based in the detected input voltage to maintain the frequency in a frequency range so that the output voltage of the charge pump is maintained in the voltage range.
摘要:
In one particular embodiment, an integrated circuit includes a package and a substrate electrically and physically coupled to the package. The package includes a first pin, a second pin, and metallization coupling the first pin to the second pin. The substrate is coupled to the package via the first pin and the second pin. The substrate includes a plurality of power domains and a power control unit. The second pin of the package is coupled to a particular power domain of the plurality of power domains. The power control unit includes logic and a switch, where the switch includes a first terminal coupled to a voltage supply terminal, a control terminal coupled to the logic, and a second terminal coupled to the first pin of the package. The logic selectively activates the switch to distribute power to the particular power domain via the metallization of the package.