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1. (WO2019045605) CLASS-C OSCILLATOR
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Pub. No.: WO/2019/045605 International Application No.: PCT/SE2017/050863
Publication Date: 07.03.2019 International Filing Date: 29.08.2017
IPC:
H03B 5/12 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
B
GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5
Generation of oscillations using amplifier with regenerative feedback from output to input
08
with frequency-determining element comprising lumped inductance and capacitance
12
active element in amplifier being semiconductor device
Applicants:
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE/SE]; . 164 83 Stockholm, SE
Inventors:
KÄMPE, Andreas; SE
Agent:
SJÖBERG, Mats; SE
Priority Data:
Title (EN) CLASS-C OSCILLATOR
(FR) OSCILLATEUR DE CLASSE C
Abstract:
(EN) There is provided an oscillator (200a, 200b, 200c) operable in Class-C. The oscillator (200a, 200b, 200c) comprises at least one set of cross-coupled transistors (220a, 220b, 220c, 220d). A threshold voltage (VT) of the transistors (220a, 220b, 220c, 220d) is controllable by having a bias voltage (Vbias) applied at back-gates (bg) of the transistors (220a, 220b, 220c, 220d). The bias voltage (Vbias) thereby controls a conduction angle of the transistors (220a, 220b, 220c, 220d) to enable operation of the oscillator (200a, 200b, 200c) in Class-C. There is further provided a radio transceiver (300) comprising such an oscillator (200a, 200b, 200c), a method of operating such an oscillator (200a, 200b, 200c), and a controller (400) configured to operate such an oscillator (200a, 200b, 200c).
(FR) L'invention concerne un oscillateur (200a, 200b, 200c) utilisable dans la classe C. L'oscillateur (200a, 200b, 200c) comprend au moins un jeu de transistors rétrocouplés (220a, 220b, 220c, 220d).Une tension de seuil (VT) des transistors (220a, 220b, 220c, 220d) peut être commandée par application d'une tension de polarisation (Vbias) à des grilles arrière (bg) des transistors (220a, 220b, 220c, 220d). La tension de polarisation (Vbias) commande ainsi un angle de conduction des transistors (220a, 220b, 220c, 220d) pour permettre le fonctionnement de l'oscillateur (200a, 200b, 200c) dans la classe C. L'invention concerne en outre un émetteur-récepteur radio (300) comprenant un tel oscillateur (200a, 200b, 200c), un procédé de fonctionnement d'un tel oscillateur (200a, 200b, 200c), et un organe de commande (400) configuré pour faire fonctionner un tel oscillateur (200a, 200b, 200c).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, 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, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)