DRIVING CIRCUIT AND CIRCUIT SYSTEM THEREOF

In a driving circuit, a drain of first NMOS transistor receives current with a positive temperature coefficient provided by current source, and a gate of first NMOS transistor and a gate of second NMOS transistor are electrically connected to the drain of first NMOS transistor. A drain and a source...

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Bibliographic Details
Main Authors LI, CHENG-TAO, LIU, WEI-JEAN
Format Patent
LanguageEnglish
Published 14.12.2023
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
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Summary:In a driving circuit, a drain of first NMOS transistor receives current with a positive temperature coefficient provided by current source, and a gate of first NMOS transistor and a gate of second NMOS transistor are electrically connected to the drain of first NMOS transistor. A drain and a source of second NMOS transistor respectively receive an input voltage and generate an output voltage for driving a load. Two ends of resistor are respectively electrically connected to a source of first NMOS transistor and an emitter of PNP bipolar junction transistor. A base of PNP bipolar junction transistor is electrically connected to a source of second NMOS transistor, and a collector of PNP bipolar junction transistor is electrically connected to a low voltage. By selecting the resistance value of the resistor, an overdrive voltage or a turned-on resistance value of second NMOS transistor is independent of a temperature variation.
Bibliography:Application Number: US202318304114