cell phone jammer is applicable to places using cell phones

To illustrate the voltage vector selection in the motor reversing figure is not the same, the pressure is not the same vector, generally in the ψ 1 forward T to keep turning remained at the range, the range of: reverse: ψ 1 reverse T maintain to keep within range, within the scope of the diagram (9) The usage scope of cell phone jammer includes conference room, auditorium, law court, library, exam room, school, cinema, theater, and hospital, etc.Motor Flux said torque control method when the clockwise rotation of the motor flux when T is less than T *, the motor input when less than a non-zero voltage acceleration vector to the motor torque increases when T T *, to select a zero voltage vector to accelerate, the motor torque increases the motor torque increases when the zero voltage vector, the movement is temporarily stationary, zero-voltage vector, so that movement of ψ 1 is temporarily stationary, while the rotor flux space vector diagram (9) torque control method continues to rotate, torque is reduced to the motor input power continues to rotate a magnetic field to accelerate, press the space vector, the pressure space vector, the motor torque to rise again, through such transient regulation can get the torque characteristics of the high dynamic performance.  cell phone jammer is applicable to places where using cell phones is forbidden. The torque characteristics of the high dynamic performance. 6. The correct choice of the correct choice of the voltage space vector voltage space vector: the voltage space vector the correct choice of two meanings: two meanings: the choice of the voltage space vector sequence; the choice of sequence; voltage space vector is given the choice of the moment. The moment of choice. Depends on the stator voltage space vector, depends on the stator voltage space vector, the trajectory of the stator flux space vector, the choice of sub-voltage space vector in the trajectory of the stator flux space vector depends on the map (10) hexagonal magnetic chain and three-phase coordinate system beta a, beta b, beta C-axis stator flux space vector trajectory. Stator flux space vector trajectory.  mobile phone jammer has the high efficiency. To get the 6-gon flux observed shaped side rail to get the polygon flux, the observed side-rail-gon flux trace rotation of the stator flux linkage space vector in the β 3-phase coordinate system (11) and direct torque control switch the correct choice of the signal and the voltage space vector). voltage status signals of the three components of the stator flux of the three beta c) The voltage of the switching signal voltage switching signal b). flux switching signal flux switching signal d) of the stator flux The maximum value of the voltage status signals, βb change from the negative maximum to zero, βc varied from zero to maximum negative. Followed by S2 the maximum value from the negative maximum to zero, from zero to maximum negative. Then section, from the maximum positive change to zero, from zero to positive maximum value, the section, βa from the maximum positive change to zero, βb varied from zero to the maximum positive, βc to maintain negative The maximum value of the same. Negative maximum value of the same. cell phone jammer adopts the super-high frequency. Complete a cycle and then repeat the existing waveform. Some of the waveform. Three Schmitt trigger, the use of three Schmitt trigger, Figure (12), the Schmitt trigger tolerance), and Schmitt trigger tolerance, as a given value of flux compare, compare, in Figure (11) b flux switching signal. Control can be seen, the facilities used as a flux) Schmitt trigger flip-flop output low-level signals (12), a low level; of ψ the βa decreased to negative flux for a given trigger output low signal is low; Sψ Schmitt trigger output high signal when the value Schmitt trigger output high level signals, ψ a high. Thus the timing diagram. Timing diagram. Similarly, the flux switch the signal Sψ a timing diagram.