Noise suppression high-voltage level shift circuit based on delay self-locking
A level shifting circuit and noise suppression technology, which is applied in the direction of logic circuit coupling device, logic circuit connection/interface arrangement, reliability improvement and modification, etc., can solve problems such as occupying a large layout area, high technical threshold, and increasing product cost. , to achieve high reliability and application value, suppress the transmission path, and occupy a small area
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[0022] Such as image 3As shown, a noise suppression high-voltage level shift circuit based on delay self-locking is characterized in that it includes an input port 1, a level shift circuit 2, a voltage clamp circuit 3, a filter circuit 4, and a delay self-locking circuit 5. RS flip-flop 6, drive circuit 7, output port 8, high voltage bias port 9 and high voltage floating ground port 0; input port 1 includes first input port 11 and second input port 12; level shift circuit 2 includes the first An LDMOS transistor 21, a second LDMOS transistor 22; the voltage clamp circuit 3 includes a first clamp circuit 31 and a second clamp circuit 32; the first input port 11 is connected to the gate of the first LDMOS transistor 21; the first LDMOS transistor The source of 21 is grounded, and the drain of the first LDMOS transistor 21 is connected to the high voltage bias port 9 through the first clamp circuit 31; the second input port 12 is connected to the gate of the second LDMOS transis...
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