Fast downlink level shift circuit with low working voltage
A technology of level shifting circuit and working voltage, which is applied in the direction of logic circuit, logic circuit coupling/interface using field effect transistor, logic circuit connection/interface layout, etc. Ability to work quickly and other issues to achieve the effect of solving the signal lag, improving protection efficiency, and reducing delay
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[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments. The examples cited are only used to explain the present invention and not to limit the scope of the present invention.
[0030] The present invention is the applicant's 2018108431121 and 2018212144290 ( Figure 4 The subsequent application of) can work quickly when the high-side level VB is relatively low. Its circuit architecture includes a high-side input network, a common-gate withstand voltage circuit, and a low-side latch circuit. The high-side input network and common-gate withstand voltage circuit are the same Figure 4 The same, but improved the low-side latch circuit.
[0031] Such as Figure 5 , High-side input network (and Figure 4 In the same), the two-way PMOS common source network is composed of PMOS tube MP1, PMOS tube MP2 and a primary inverter INV. The sources of PMOS tube MP1 and MP2 are connected to the high-side high potential VB, and the inp...
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