摘要:
An Inverting hysteretic transistor switch having an input terminal (13), an output terminal (17) and a ground terminal (15) includes, in some embodiments (11), a metal-oxide semiconductor field effect transistor (MOSFET) having an on switching state and an off switching state. The MOSFET includes a drain terminal connected to the output terminal, a gate terminal and a source terminal connected to the ground terminal. The switch further includes a hysteresis circuit (12) connected to the input terminal and to the gate terminal of the MOSFET. In use, with an input voltage having low-to-high and high-to-low input voltage transitions applied to the input terminal, the hysteresis circuit switches the MOSFET to its on switching state at a first threshold voltage during low-to-high input voltage transitions. In addition, the hysteresis circuit switches the MOSFET to its off switching state at a second threshold voltage, which is less than the first threshold voltage, during high-to-low input voltage transitions.
摘要:
A VSLI circuit includes a plurality of state device circuits on a VLSI chip. Each of the state device circuits includes a latch and is clocked by a pulse generator circuit which produces narrow pulses that are coupled to the clock input of the latch. The narrow pulses have a pulse width substantially equivalent to the propagation delay through the latch of the state device circuits. By taking advantage of the high correlative percentages of devices on portions of the chip, master-slave flip flops can be implemented using only a single latch with a pulse generator.
摘要:
A flip-flop (10) includes a charge storage area (22) that stores a logic voltage indicating a logic state of the flip-flop (10), a first transistor (20a) having a source or drain connected to a clock generating circuit (40), a second transistor (20b) having a source or drain connected to the clock signal generating circuit (40), a clock signal generated by the clock signal generating circuit (40) that is ramped or sinusoidal, and a latching circuit (18) that latches a latch voltage value based on voltages at the first transistor (20a) and the second transistor (20b). The charge storage area (22) supplies a first voltage representing a state of the storage voltage to a gate of the first transistor (20a) and supplies a second voltage to a gate of the second transistor (20b).
摘要:
In some embodiments, the invention includes an interconnect system (50) having a single ended driver (54) and single ended hysteretic receiver (58). A single ended interconnect (66) is coupled between the single ended driver and single ended receiver. In other embodiments (figure 4), the invention involves an interconnect system including interconnects (66A, 66B), single ended drivers (54A, 54B), and single ended hysteretic receivers (58A, 58B) connected to respective ones of the interconnects. The single ended drivers receive respective data-in signals (Din(0), Din(1)) and an enable signal (Enable) and wherein the drivers transmit interconnect signals on the interconnects when the enable signal is asserted. In yet other embodiments (140), the invention includes an interconnect system having interconnects (66A, 66B), quasi-static drivers (142A, 142B) and receivers (150A, 150B) connected to respective ones of the interconnects, the quasi-static drivers receive a clock signal (CLK) and respective data-in signals (Din(0), Din(1)), and wherein the interconnect signals are pre-discharged when the clock signal changes from a first to a second state, and wherein when the clock signal is in the first state, the interconnect signals are related to the data-in signals. In still other embodiments, the invention includes a pseudo differential interconnect system (90) and an interconnect system with a dual rail driver (190).
摘要:
A Flip-Flop circuit, of a current-pass switching type logical circuit, of the invention comprises a pair of data holding transistors (Q₁₁,Q₁₂), the emitters thereof being tied together at a first junction point (22) and being led to a constant-current source (18); and a set signal input transistor (Q₁₈) and a reset signal input transistor (Q₁₉), the emitters thereof being tied together at a second junction point (21) and being led to the constant-current source. There is provided a single level-shifting resistor (20) between the first junction point (22) and the second junction point (21) for preventing interference or concurrence between the high level of a set signal or a reset signal and the high level of the internal data held by the data holding transistors (Q₁₁,Q₁₂). The circuit is suitable to be fabricated in a semiconductor integrated circuit device of high packing density. The working range of power supply voltages for the circuit is wide because the level shift voltage developed across the level-shifting resistor is not influenced by the variation of the power supply voltage.
摘要:
An Inverting hysteretic transistor switch having an input terminal (13), an output terminal (17) and a ground terminal (15) includes, in some embodiments (11), a metal-oxide semiconductor field effect transistor (MOSFET) having an on switching state and an off switching state. The MOSFET includes a drain terminal connected to the output terminal, a gate terminal and a source terminal connected to the ground terminal. The switch further includes a hysteresis circuit (12) connected to the input terminal and to the gate terminal of the MOSFET. In use, with an input voltage having low-to-high and high-to-low input voltage transitions applied to the input terminal, the hysteresis circuit switches the MOSFET to its on switching state at a first threshold voltage during low-to-high input voltage transitions. In addition, the hysteresis circuit switches the MOSFET to its off switching state at a second threshold voltage, which is less than the first threshold voltage, during high-to-low input voltage transitions.
摘要:
An Inverting hysteretic transistor switch having an input terminal (13), an output terminal (17) and a ground terminal (15) includes, in some embodiments (11), a metal-oxide semiconductor field effect transistor (MOSFET) having an on switching state and an off switching state. The MOSFET includes a drain terminal connected to the output terminal, a gate terminal and a source terminal connected to the ground terminal. The switch further includes a hysteresis circuit (12) connected to the input terminal and to the gate terminal of the MOSFET. In use, with an input voltage having low-to-high and high-to-low input voltage transitions applied to the input terminal, the hysteresis circuit switches the MOSFET to its on switching state at a first threshold voltage during low-to-high input voltage transitions. In addition, the hysteresis circuit switches the MOSFET to its off switching state at a second threshold voltage, which is less than the first threshold voltage, during high-to-low input voltage transitions.
摘要:
A Flip-Flop circuit, of a current-pass switching type logical circuit, of the invention comprises a pair of data holding transistors (Q₁₁,Q₁₂), the emitters thereof being tied together at a first junction point (22) and being led to a constant-current source (18); and a set signal input transistor (Q₁₈) and a reset signal input transistor (Q₁₉), the emitters thereof being tied together at a second junction point (21) and being led to the constant-current source. There is provided a single level-shifting resistor (20) between the first junction point (22) and the second junction point (21) for preventing interference or concurrence between the high level of a set signal or a reset signal and the high level of the internal data held by the data holding transistors (Q₁₁,Q₁₂). The circuit is suitable to be fabricated in a semiconductor integrated circuit device of high packing density. The working range of power supply voltages for the circuit is wide because the level shift voltage developed across the level-shifting resistor is not influenced by the variation of the power supply voltage.
摘要:
This invention is directed to a polymer thick film conductive composition. More specifically, the polymer thick film conductive composition may be used in applications where thermoforming of the base substrate occurs as in capacitive switches. Polycarbonate substrates are often used as the substrate and the polymer thick film conductive composition may be used without any barrier layer. Thermoformable electric circuits benefit from the presence of an encapsulant layer over the dried polymer thick film conductive composition.
摘要:
This invention is directed to a polymer thick film conductive composition. More specifically, the polymer thick film conductive composition may be used in applications where thermoforming of the base substrate occurs as in capacitive switches. Polycarbonate substrates are often used as the substrate and the polymer thick film conductive composition may be used without any barrier layer. Thermoformable electric circuits benefit from the presence of an encapsulant layer over the dried polymer thick film conductive composition.