| 摘要 |
A voltage regulation and modulation circuit of a contactless device, including an adjustable impedance circuit configured to maintain an amplitude of an input voltage to be less than an amplitude of a reference voltage; a current buffer circuit coupled between the adjustable impedance circuit and a load, and configured to buffer a supply current, which is output from the adjustable impedance circuit, to the load; and a parallel regulator coupled to an output of the current buffer circuit, and configured to maintain a constant supply voltage at the load. |
