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1. (WO2015124241) LEVEL CONVERTER AND LEVEL CONVERSION METHOD

Pub. No.:    WO/2015/124241    International Application No.:    PCT/EP2014/079116
Publication Date: Fri Aug 28 01:59:59 CEST 2015 International Filing Date: Wed Dec 24 00:59:59 CET 2014
IPC: H03K 19/0175
H03K 19/0185
Applicants: ROBERT BOSCH GMBH
Inventors: BARNER, Alexander
WITTMANN, Juergen
ROSAHL, Thoralf
WICHT, Bernhard
Title: LEVEL CONVERTER AND LEVEL CONVERSION METHOD
Abstract:
Level converters (1, 22) having a first input (5, 21) which detects a first signal (4), wherein the first signal (4) has a first voltage level, an output which generates a second signal (13, 50), wherein the second signal (13, 50) has a second voltage level, wherein the second voltage level is higher than the first voltage level, and a differential amplifier (40) which detects a differential voltage, wherein the differential amplifier (40) is connected to a supply voltage (15, 55) and a high-side earth (7, 56), wherein the supply voltage (15, 55) has a first voltage potential and the high-side earth (7, 56), wherein the supply voltage (15, 55) has a first voltage potential and the high-side earth (7, 56) has a second voltage potential, characterized in that the first input (5, 21) is connected to a first component circuit (20), wherein the first component circuit (20) is connected unidirectionally to a second component circuit (30), wherein the second component circuit (30) is connected to the supply voltage (15, 55) and the high-side earth (7, 56), wherein the second component circuit (20) has at least two outputs (31, 32) which generate the differential voltage of the differential amplifier (40), wherein an additional voltage is input via a supply voltage input (6, 53) and a high-side earth input (14, 54), and the differential amplifier (40) generates the second signal (13, 50) as a function of the differential voltage, the supply voltage (15, 55), the high-side earth (7, 56) and the additional voltage.