Push-pull output circuit
A push-pull output, push-pull circuit technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problem of no integrated output driver chip, and the push-pull output circuit cannot achieve rail-to-rail output.
Pending Publication Date: 2019-04-19
安徽沃巴弗电子科技有限公司
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Problems solved by technology
[0002] The commonly used push-pull output voltage is the voltage of the power supply minus a PN junction voltage, and the rail-to-rail output is the voltage of the power supply minus a voltage less than 100mV. Therefore, the commonly used push-pull output circuit cannot achieve rail-to-rail output. Rail output, and there is no separate integrated output driver chip for rail-to-rail output
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[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] Depend on figure 1 As shown, a push-pull output circuit is divided into two parts, that is, a first module and a second module; the input terminal Vin is input to the first module; the first module is used to input the input terminal Vin The input signal is separated into two identical signals, and the two identical signals are respectively input to the second module; the second module is a push-pull output circuit for realizing rail-to-rail output.
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Abstract
The invention discloses a push-pull output circuit. The push-pull output circuit comprises a first module and a second module; the first module comprises two same NOMS field-effect tubes, an input signal is input into the two same NOMS field-effect tubes of the first module respectively, the two same NOMS field-effect tubes are used for separating the input signal into two same signals, and the first module inputs the two same signals into the second module respectively; the second module is the push-pull output circuit, comprises two transistors of different polarities and is used for achieving rail-to-rail output. The push-pull output circuit is suitable for occasions where input driving current is small, the output requires rail-to-rail, working voltage is wider, and output driving current is large; the push-pull output circuit is integrated separately, and an output driving chip can be generated.
Description
technical field [0001] The invention relates to the technical field of push-pull circuits, in particular to a push-pull output circuit for realizing rail-to-rail output. Background technique [0002] The commonly used push-pull output voltage is the voltage of the power supply minus a PN junction voltage, and the rail-to-rail output is the voltage of the power supply minus a voltage less than 100mV. Therefore, the commonly used push-pull output circuit cannot achieve rail-to-rail output. Rail output, and there is no separate integrated output driver chip for rail-to-rail output. Contents of the invention [0003] In order to overcome the above defects in the prior art, the present invention provides a push-pull output circuit, which is suitable for occasions where the input drive current is small, the output requires rail-to-rail, the working voltage is wide, and the output drive current is large. Moreover, a push-pull output circuit of the present invention is separately...
Claims
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Login to View More IPC IPC(8): G05F1/56
CPCG05F1/56
Inventor 白宇余健夏宜铭吴求玉
Owner 安徽沃巴弗电子科技有限公司