Ripple suppression circuit and light emitting diode driver

A ripple suppression circuit for suppressing a ripple component in a drive current for a light-emitting diode (LED) load, the ripple suppression circuit comprising:

• a) an output port connected to the LED load;
• b) a current filter circuit connected in series with the output port, and being configured to control the drive current based on an output voltage after a ripple component is filtered out, wherein the drive current is maintained as substantially stable;
• and
• c) a ripple shunt circuit connected between a drive current input terminal and a ground terminal, and being configured to shunt the drive current in response to the output voltage, wherein the output voltage is a voltage output from a previous stage of circuit to the ripple suppression circuit.