32results about How to "Improve load driving capability" patented technology

The invention discloses a high-steady-state multi-port PUF (Poly Urethane Foam) circuit comprising a decoding circuit module, a PUF circuit unit array, a sense amplifier, a selector, a latch, a time sequence control circuit module and an FIFO (First Input First Output) circuit unit, wherein the decoding circuit module is connected with the PUF circuit unit array which is connected with the sense amplifier, the sense amplifier is connected with the selector which is connected with the latch, the latch is connected with the FIFO circuit unit, and the time sequence control circuit module is respectively connected with the decoding circuit module, the PUF circuit unit array, the sense amplifier, the selector and the latch, and the PUF circuit unit array comprises at least two PUF circuit units. The high-steady-state multi-port PUF circuit has the advantages that a plurality of keys are output in one access, the frequent visit of the PUF circuit can be avoided, the time is saved, and the circuit power consumption is lowered.

The invention discloses a power supply device for a DUT in an integrated circuit test system. A PC host computer sets a preset output value of the system according to the needs of the integrated circuit test system, and sends the preset output value to a controller MCU; the controller MCU controls a chopper circuit to output a corresponding voltage value for a power amplifier according to the preset output value of the system, and the integrated circuit test system is thus controlled to operate. When the integrated circuit test system is controlled to operate, a voltage/current sampling circuit collects voltage and current values, the values are fed back to the controller MCU, the controller MCU processes the deviation value of the preset output value and the sample value through a built-in feedback control algorithm, the output voltage of a BUCK/BOOST chopper circuit is further controlled through the deviation value, and thus, the output power precision is controlled and adjusted, thepower dissipation of the power amplifier is reduced, and the load driving capability of the power amplifier is improved.

The invention discloses an analogue switch-based electric vehicle charge control guide circuit conforming to the national standard, and belongs to the field of electric vehicles. The analogue switch-based electric vehicle charge control guide circuit comprises a power supply connection detection module, a level conversion module and a level detection module; the connection state of a power supply plug and a power supply socket is judged according to output voltage of the power supply connection detection module; with an analogue switch as a main device, the level conversion module receives a pulse-width modulation (PWM) signal output by a power supply control device and converts the PWM signal into the PWM signal of which the amplitude is +/-12V according to the national standard; the level detection module keeps the level conversion module outputting a voltage peak value, so that the power supply control device collects the voltage peak value and judges the connection state of a charge interface and the state of a vehicle control device according to the voltage peak value; and when the condition is met, the power supply control device supplies electricity to the electric vehicle. The level detection module disclosed by the invention has the effects of keeping the voltage peak value and improving the load drive ability; the adopted device is low in price; the cost is reduced; and the analogue switch-based electric vehicle charge control guide circuit has promotional value.

The invention discloses a transistor based charge control guide circuit of an electric vehicle conforming to national standards, and belongs to the field of electric vehicles. The transistor based charge control guide circuit comprises a power supply connection detecting module, a level conversion module and a level detecting module; a connection state between a power supply plug and a power supply socket is judged according to the output voltage of the power supply connection detecting module; the level conversion module takes the transistor as the main device for receiving PWM signals output by a power supply control apparatus and converting the PWM signals into plus or minus 12V PWM signals according to national standards; and the level detecting module maintains the voltage peak value output by the level conversion module to enable the power supply control apparatus to collect the voltage peak value so as to judge a connection state of a charging interface and a state of a vehicle control apparatus based on the voltage peak value, when conditions are met, the power supply control apparatus charges the electric vehicle. The level detecting module of the transistor based charge control guide circuit has the functions of maintaining the voltage pack value and improving the load drive capacity; and in addition, the devices adopted by the transistor based charge control guide circuit are low in cost, so that the transistor based charge control guide circuit is low in costs and has promotional value.

The invention relates to a voltage polarity switching device, comprising a controller, the output end of which is connected to a positive pressure output module group and a negative pressure output module group. The voltage polarity switching device also comprises a positive pressure output module group. At least two sets of transformers are driven by at least two drive circuits arranged in parallel, and positive voltage is output in a coupling manner. The output end is divided into two paths, wherein one path is connected to a first load switching circuit, and the other path is connected to the output end of voltage. The voltage polarity switching device also comprises a negative pressure output module group. At least two sets of transformers are driven by at least two drive circuits arranged in parallel, and negative voltage is output in a coupling manner. The output end is divided into two paths, wherein one path is connected to a second load switching circuit, and the other path isconnected to the output end of voltage. The first load switching circuit is connected to the second load switching circuit. The voltage polarity switching device also comprises a feedback circuit, which is used for monitoring the voltage of the output terminal of voltage and is transmitted to the controller. The invention also relates to a voltage polarity switching method. The invention is advantageous in that the switching speed is fast, circuit interference is little, and design cost is low.

The invention provides a chip interface circuit. The chip interface circuit comprises a signal transmission-reception module, a recognition module, a voltage protection module, a surge protection module and a switch module, the signal transmission-reception module is electrically connected with a data transmission-reception pin of a chip, the recognition module is electrically connected with a data transmission pin of the chip, one terminal of the voltage protection module is electrically connected with an output terminal of a power supply, the other terminal of the voltage protection module is electrically connected with a voltage input pin of the chip, the surge protection module is electrically connected with the recognition module, and the switch module is electrically connected with the surge protection module. According to the chip interface circuit, through the design of the recognition module, the recognized capability of the data transmission pin is enhanced, the generated pull-up level and the pull-down level enable a circuit structure of the chip interface circuit to be more stable, the protection performance of the chip interface circuit is enhanced, and through the design of the voltage protection module, the damage to the chip due to large fluctuation of the voltage sent by the power supply or over-high input voltage is prevented so that the protection performanceof the chip interface circuit is enhanced.

The present invention discloses a device of realizing the fire-fighting bus long-distance large-current driving. The device comprises a signal obtaining module, a signal isolation device, a signal amplification module, an output signal module, a current signal detection module and a current signal amplification and feedback module. The present invention additionally provides a realization method of the device. The device and the realization method of the present invention are simple in structure, are convenient to use and achieve the purpose of the fire-fighting bus long-distance large-current driving very well, thereby effectively breaking through the technical bottleneck, and overcoming the industry problems. Moreover, the device and the realization method of the present invention both adopt the conventional circuits, devices and modules, and are simple in structure design, so that the cost is reduced greatly, the problems are solved, at the same time, the effective technical guarantee is provided for the extension and mounting of the intelligent parts and the peripheral parts, and accordingly, the device and the realization method of the present invention are suitable for being popularized and applied.

The invention discloses an actuator based on the inverse piezoelectric effect, which comprises a base, a stator arranged on the base, and a mover arranged on the base and connected to the stator, and a positioning device is arranged between the base and the stator , and the stator is arranged on the base through a positioning device, the stator includes a stator bottom plate, an amplifying unit structure arranged on the stator bottom plate, and a power device connected to the amplifying unit structure in transmission, and the power device can push the amplifying unit structure to move, and through The amplifying unit structure drives the mover to move; the beneficial effect of the present invention is that the stator adopts the piezoelectric stack as the power device, which can realize micro-displacement action, and the use of the piezoelectric stack can increase the driving displacement of the piezoelectric ceramics, and at the same time has a low The advantages of power consumption, fast response and low heat generation.