96 results about "Regenerative circuit" patented technology

A non-volatile static random access memory cell and includes a bistable regenerative circuit coupled to first and second transistors and to first and second non-volatile memory cells. Methods of use include directly transferring a complementary data bit between the non-volatile memory cell and the bistable regenerative circuit. Alternatively, complementary data from the bistable regenerative circuit may be regenerated by a sense amplifier and a second bistable regenerative circuit before being transferred to non-volatile memory cells in a column of memory cells. The bistable regenerative circuit may be reset to ground potential. Applications using the non-volatile SRAM cell with direct read out from the bistable regenerative circuit include a non-volatile flip-flop or non-volatile multiplexer.

The invention discloses an automotive energy-regenerative active suspension system with rigidity and damping variable. The suspension system comprises a suspension variable-rigidity mechanism, a suspension energy-regenerative mechanism and an active suspension control system. The suspension variable-rigidity mechanism comprises a low-rigidity spring, a magneto-rheological damper and a high-rigidity spring. The suspension energy-regenerative mechanism is formed by bi-directionally connecting a linear motor, an energy-regenerative circuit and a storage battery in sequence. The active suspension control system includes a controller. The data input end of the controller is connected with a vibration measuring and processing circuit. The magneto-rheological damper and the control input end of the linear motor are respectively connected with the control output end of the controller. The suspension system can automatically adjust the damping and rigidity at the same time, so that the good steering stability and ride comfort of a finished automobile are achieved; the control system is high in response speed; energy consumption is substantially lowered, and therefore the economy requirement of the finished automobile is met; moreover, the structure and a control algorithm are simple, working is stable and reliable, service life is long, and the suspension system can be conveniently applied to an existing automotive suspension so that real-time control can be achieved.

A non-volatile memory array includes a plurality of word-lines and a plurality of columns. One of the columns further includes a bistable regenerative circuit coupled to a first, a second, a third, and a fourth signal lines. The column also includes a non-volatile memory cell having current carrying terminals coupled to the first and second signal lines and a control terminal coupled to one of the plurality of word-lines. The column further includes a first transistor and a second transistor. The first transistor is coupled to the first terminal of the bistable regenerative circuit, and to a fifth signal line. The second transistor has a first current carrying terminal coupled to the second terminal of the bistable regenerative circuit, and a second current carrying terminal coupled to a sixth signal line. The gate terminals of the first and second transistors are coupled to a seventh signal line.

The magnetic bearing control device (1) has a motor drive circuit (13) provided with an inverter (13a) for driving the motor (4) capable of generating an electric power, the inverter being controlled by an inverter control circuit (14), and an over-speed detection circuit (17) for detecting the number of revolutions of the rotor (3) that is being rotated by the motor (4), the rotor being supported in non-contact manner by a magnetic bearing (5). When the over-speed detection circuit (17) detects that the rotor (3) is being rotated at a preset number of revolutions or more, the motor drive circuit (13) performs a switching operation of a switch portion 13c provided in the motor drive circuit (13) to separate the inverter (13a) from the motor (4) and connect the motor (4) to a regenerative circuit (13b), whereby the magnetic bearing (5) is driven and controlled, employing a regenerative electric power of the motor (4).

A wavelength converter and a wavelength division-multiplexing optical communication apparatus automatically generate clock signals of a specified frequency that match send/receive digital signals and regenerates timing for the send/receive digital signals. The wavelength converter includes: optical/electrical signal converters (2A, 2B) that convert input optical signals into electric digital signals; clock generator circuits (4A, 4B) that automatically identify the transmission mode for digital signals and generate phase-synchronized clocks of a specified frequency that match the signal transmission mode; timing regeneration circuits (6A, 6B) that regenerate clock timing for the digital signals based upon the phase-synchronized clocks from the clock generator circuits; and electric/optical converters (3A, 3B) that convert the digital signals from the timing regeneration circuits into optical signals of a specified wavelength.

Embodiments of disclosed configurations include a circuit and system for a sense amplifier having a sensing circuit changing an output voltage at an output node based on a time that is defined by the output voltage reaching a threshold voltage level. The sensing circuit changes the output voltage at the output node before the time. In addition, a regeneration circuit amplifies the changed output voltage at the time. The sense amplifier offers sufficient voltage headroom to improve operation speed and power efficiency.

A methor for storage cell read timing evaluation provides read strength information by using a pulsed ring oscillator. A pulse generator is coupled to a bitline to which the storage cell to be measured is connected. The storage cell thereby forms part of the ring oscillator and the read strength of the storage cell is reflected in the frequency of oscillation. A pulse regeneration circuit is included in the ring so that the storage cell read loading does not cause the oscillation to decay. Alternatively, a counter may be used to count the number of oscillations until the oscillations decay, which also yields a measure of the read strength of the storage cell. The pulse generator may have variable output current, and the current varied to determine a change in current with the storage cell enabled and disabled that produces the same oscillation frequency. The read current is the difference between currents.

The tries limit counter is used to refuse annoying income call in defined times. It consists of initial call information acquiring circuit, CPU, display unit, black list memory, keyboard input circuit, line switching circuit, automatic off hook circuit, incoming call regenerative circuit, ringing detecting circuit, off hook detecting circuit, incoming call generating control switch, incoming call inquiry switch, black list inquiry switch and phone number deleting switch.