0
Obviously by feedback
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Circuit used to convert pwm to ppm?
the pwm output can be converter to ppm by passing pwm through a monostable multivibrator with a low stable state and high quasi stable state and which is negative edge triggered.
What is the meaning of voltage control device and current control device y they call like this?
In vcd, input voltage controls the output current.e.g.jfet In ccd , input current controls the output current. e.g. bjt
What is the effect of diode voltage drop as the output voltage?
The effect of diode voltage drop as the output voltage is that the input voltage will not be totally transferred to the output because power loss in the diode . The output voltage will then be given by: vout=(vin)-(the diode voltage drop).
What determines the output voltage and the current of a transformer?
The ratio of output windings to input windings determines the ratio of output voltage to input voltage. The ratio of current is the inverse.
How do you use the Transistor output terminals of an electronic counter in a Electrical control circuit?
They use transistor as the purpose to transfer the voltage
Is it the value of input voltage equal the value of output voltage?
No. There are several factors that may affect the output voltage. For instance: Resistors, Transformer, Voltage regulators and others that can control the output voltage to a certain level.
How does pwmcontroller ic tl494 works?
As mentioned earlier, it is a fixed frequency and variable duty cycle dual PWM control circuit. It does not require any external components to operate except a few resistors and capacitors for an oscillator. This oscillator is responsible for generating a sawtooth waveform according to timing capacitor CT. This TL494 IC generates signals by comparing a sawtooth waveform with two control signals of the error amplifiers. The output signal will be on during the time when sawtooth voltage is greater than the voltage at error amplifiers outputs. You can see a block diagram given above. Output signal low: if sawtooth voltage less than the control signal voltage Output signal High: if sawtooth voltage greater than the control signal voltage Pulse-Steering Flip-Flop transfers the PWM output signal to output transistors.
What is the operation which monitored or managed by a microprocessor in rd module?
The RD MODULE is an ac/dc converter,with 230Vac input voltage and 48Vdc output voltage. The operation which monitored or managed by microprocessor is 1.measures the input voltage 2.measures the chopper voltage 3.limits the output power 4.generates the PWM control signal to limit the output current 5.measures the RD temparature and manages the relevant alarms 6.communicates via CAN-BUS with the SCU module 7.manages the operator interface
What has the author Fotis Stergiopoulos written?
Fotis Stergiopoulos has written: 'Analysis and control design of the three-phase voltage-sourced AC/DC PWM converter'
What are the advantages of space vector PWM inverter over other technique?
Stepped wave Inverter is simple but has lower order harmonics which cannot be eliminated by filters.These harmonics can be eliminated by the Space Vector PWM technique. In the space vector PWM technique, there is 15% increment in maximum voltage compared to PWM, hence Space Vector enables efficient use of DC voltage.Space Vector Modulation provides excellent output performance, optimized efficiency and high reliability compared to similar Inverters with conventional PWM
Advantages of multilevel inverters over pwm inverters?
harmonics reduced due to multi switching and output is approximately sine wave so filter design and cost reduced.DC link voltage is also reduced because of splitted source.
Circuit used to convert pwm to ppm?
the pwm output can be converter to ppm by passing pwm through a monostable multivibrator with a low stable state and high quasi stable state and which is negative edge triggered.
What is the meaning of voltage control device and current control device y they call like this?
In vcd, input voltage controls the output current.e.g.jfet In ccd , input current controls the output current. e.g. bjt
How can you step up or down voltage in dc system?
A: By using PWM or magnetic amplifiers
What is pwm?
PWM is Pulse Width Modulation. It is a Digital control is used to create a square wave, a signal switched between on and off.
What is a Voltage compensator?
a control used to manually adjust the transformer to compensate for inconsistent electrical output
How scr can control the temperature for electric hot plate?
One way is to use a microcontroller with an output pen set up with hardware PWM into the scr, the scr then controls the heating element of the hotplate. A thermistor can be added for a control feedback loop.
