摘要:
A semiconductor device includes p- and n-type semiconductor layers formed on an insulating substrate and gate electrodes selectively and insulatively formed over the respective p- and n-type semiconductor layers and forming D-type MOS transistors. In this semiconductor device, the p- and n-type semiconductor layers are made in contact with each other, and negative and positive power supply terminals which are respectively set at negative and positive potentials are respectively connected to the p- and n-type semiconductor layers thereby to electrically isolate the p-type and n-type semiconductor layers from each other.
摘要:
An input inverter section inverts a plurality of input signals to generate complementary signals and supplies signals complementary to these input signals to a logic circuit network. The logic circuit network comprises a plurality of pairs of depletion type NMOSs (NDMOSs) whose conducting states are respectively controlled on a complementary basis by the supplied signals. Since each of the NDMOSs has a threshold voltage set negative, a drain current flows even if its gate voltage is 0V, and hence it is not brought into a complete off state. It is therefore possible to speed up a change from an off state to an on state and raise a signal of an “H” level at a node from which a signal indicative of the result of logical operations is outputted, to a potential identical to a power supply potential. The signal at the node is outputted from an output buffer section as an output signal.
摘要:
A switching circuit includes two series-connected MOSFET (1, 6) complementing one another, which are interconnected at the drain terminal of each device. The gate terminal of the MOSFET that is grounded is connected to a control input terminal (E). This gate terminal is also connected to the source terminal of a depletion FET (7). The drain terminal of the depletion FET (7) is connected to the gate terminal of the second MOSFET (6) and, in turn, is connected via a resistor (8) to a voltage source (+U). The gate terminal of the depletion FET (7) is grounded. The load (5) is then connected to the drain side of the complementary MOSFET. When the switch is in a blocking condition, the cross current is thus prevented from flowing; and the FET connected to voltage can be completely activated.
摘要:
A semiconductor device includes p- and n-type semiconductor layers formed on an insulating substrate and gate electrodes selectively and insulatively formed over the respective p- and n-type semiconductor layers and forming D-type MOS transistors. In this semiconductor device, the p- and n-type semiconductor layers are made in contact with each other, and negative and positive power supply terminals which are respectively set at negative and positive potentials are respectively connected to the p- and n-type semiconductor layers thereby to electrically isolate the p-type and n-type semiconductor layers from each other.
摘要:
The inverter buffer circuit disclosed includes two transistorized circuits each coupled to an input circuit and an output circuit capable of carrying high current and providing full output swing between a high voltage or binary "1" and a low voltage or binary "0". Each of the two circuits include a first enhancement field effect transistor having its drain electrode connected to a drain voltage and operating as a source follower, a first depletion field effect transistor having its drain electrode and source electrode connected to back bias acting as a load for the first enhancement transistor, second and third enhancement field effect transistors having their source electrodes coupled to the back bias and interconnected to form a flip-flop controlled by the first enhancement transistor and a second depletion field effect transistor having its drain electrode coupled to the drain voltage and acting as the load for the flip-flop. The output circuit includes two depletion field effect transistors connected in series between the drain voltage and source voltage with the gate electrodes thereof connected to a different one of the two flip-flops and an output terminal coupled to the series connection between the two depletion transistors. Three embodiments of the input circuit are disclosed.