Programmable logic device-based data processing apparatus and driving method therefor, and display apparatus

A display device, comprising:

• a data processing device based on a programmable logic device, wherein the data processing device comprises:
• at least one function circuit configured to process input data;
• and
• at least one current smoothing circuit, each corresponding to one of the at least one function circuit, the at least one current smoothing circuit being configured to smooth a current change of the programmable logic device caused when a corresponding function circuit is switched between on and off,
• wherein the at least one current smoothing circuit comprises:
• a control circuit configured to generate a driving signal based on a switching manner of the function circuit corresponding to the current smoothing circuit;
• and
• a redundant circuit configured to operate according to the driving signal to smooth the current change,
• wherein the control circuit comprises:
• a decoding control word generating circuit configured to generate a control word based on the switching mode of the function circuit corresponding to the current smoothing circuit;
• and
• a decoding circuit configured to generate the driving signal based on the control word.

A method for driving a data processing device based on a programmable logic device, comprising:

• providing the data processing device, wherein the data processing device comprises:
• at least one function circuit configured to process input data;
• and
• at least one current smoothing circuit, each corresponding to one of the at least one function circuit, the at least one current smoothing circuit being configured to smooth a current change of the programmable logic device caused when a corresponding function circuit is switched between on and off;
• determining, among the at least one function circuit, a to-be-switched function circuit and a switching manner thereof;
• and
• smoothing, by the current smoothing circuit corresponding to the to-be-switched function circuit, a current change of the programmable logic device caused when the function circuit is switched between on and off,
• wherein:
• the current smoothing circuit comprises a control circuit and a redundant circuit, and
• smoothing the current change of the programmable logic device caused when the function circuit is switched between on and off comprises:
• in response to that the to-be-switched function circuit is to be switched from on to off, switching on the redundant circuit while the to-be-switched function circuit is switched off, to make a ratio of an absolute value of a difference between a maximum power of the redundant circuit and a power of the to-be-switched function circuit to the power of the to-be-switched function circuit to be within a threshold range, and then gradually reducing the power of the redundant circuit within a predetermined time;
• and
• in response to that the to-be-switched function circuit is to be switched from off to on, gradually increasing the power of the redundant circuit within the predetermined time before the to-be-switched function circuit is switched on, to make the ratio of the absolute value of the difference between the power of the redundant circuit and the power of the to-be-switched function circuit to the power of the to-be-switched function circuit to be within the threshold range, and then switching off the redundant circuit while the to-be-switched function circuit is switched on.