Patent SG-11201810291P-A (SG)
Title: High speed voltage level shifter
Inventor: NARAYANAN VENKAT
IPC: H03K3/356
Filed: 2017-06-13
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111101111 0 1110101011111 011101 0 0111111111111111111111111111111111111110111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ...... WO 2018/005085 Al 04 January 2018 (04.01.2018) WIP0 I PCT (51) (21) (22) (25) Filing Language: (26) (30) (71) Applicant: QUALCOMM INCORPORATED [US/US]; (72) International Patent Classification: ye, San Diego, California 92121-1714 (US). VILAN- H03K 3/012 (2006.01) H03K 3/356 (2006.01) GUDIPITCHAI, Ramaprasath; 5775 Morehouse Drive, International Application Number: San Diego, California 92121-1714 (US). SINHAROY, PCT/US2017/037335 Samrat; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHEN, Rui; 5775 Morehouse Drive, International Filing Date: San Diego, California 92121-1714 (US). 13 June 2017 (13.06.2017) (74) Agent: WORLEY, Eugene; Loza & Loza, LLP, 305 North English Second Avenue #127, Upland, California 91786 (US). Publication Language: English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, Priority Data: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 62/357,164 30 June 2016 (30.06.2016) US CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 15/367,706 02 December 2016 (02.12.2016) US DZ, EC, EE, EG, ES, FL GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, ATTN: International IP Administration, 5775 Morehouse KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, Drive, San Diego, California 92121-1714 (US). MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, Inventors: NARAYANAN, Venkat; 5775 Morehouse Dri- SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, ye, San Diego, California 92121-1714 (US). VATTIKON-TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. DA, Rakesh; 5775 Morehouse Drive, San Diego, Cali- fornia 92121-1714 (US). LU, De; 5775 Morehouse Dri- - = put (54) Title: HIGH SPEED VOLTAGE LEVEL SHIFTER 252-- DN -250 -- 220 FIG. 2 gate (250) having to receive includes a second a second input (225) configured to receive the enable signal in the second the first NOR gate, and an output (Z_N) coupled to the third input of the by a supply voltage of the second power domain. 210 — 255 = = • 257 227- = = _ ENB D = = = = 225 -, = = 222 ZN a first input (252) configured to receive a first input signal an enable signal (ENB) in a second power domain, a third NOR gate (220) having a first input (222) configured to : A voltage level shifter includes a first NOR in a first power domain, a second input (255) configured (257), and an output (Z). The voltage level shifter also a second input signal (D) in the first power domain, domain, a third input (227) coupled to the output of NOR gate. The first and second NOR gates are powered 1-1 kr) GC c:::: ) (57) In (D_N) C:::: ) m • 0 ---- receive GC power 1-1 © first ei O [Continued on next page] WO 2018/005085 Al MIDEDIMOMOIDEIREEMOMIIMINIRMOMEHOIMIE (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) — as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3))