The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2022
Filed:
Nov. 05, 2020
Anhui Transilica Microelectronics Co., Ltd., Hefei, CN;
Jiangsu Keda Hengxin Semicon Tech Co., Ltd., Suzhou, CN;
ANHUI TRANSILICA MICROELECTRONICS CO., LTD., Hefei, CN;
JIANGSU KEDA HENGXIN SEMICON TECH CO., LTD., Suzhou, CN;
Abstract
A high-speed high-current laser driver integrated circuit is invented. The laser driver includes an input stage circuit, a pre-drive circuit, a negative capacitance circuit, three parallel-connected output stages, and an active reverse termination circuit. A pair of voltage signals V, Vare applied to the input stage circuit which amplifies these input signals to a pair of output voltage signals V, V. Then the voltage signals V, Vare amplified by the pre-drive circuit to a pair of voltage signals V, Vto the output stage circuit, and finally, a pair of modulated current signals I, Iare generated by the output stage circuit. The present invention does not use terminal resistance in the output stage circuit, so the power consumption of the circuit is much lower than that of the traditional circuit.