800W Class D Amplifier Circuit IR2110 PWM

| August 4, 2019 Updated
800W Class D Amplifier Circuit IR2110 PWM

2X400W Class D Amplifier Project with IR2110 . The function of the PWM modulator For clarity of explanation of the function of the entire PWM modulator it is advisable to split it into a few blocks away. The first and most important block is the generator of triangular signal, which consists of the integrator formed by the operational amplifier THS4271

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A constant stream of the condenser ensures linear increase the voltage on this capacitor in the case that it is charging. In the opposite the case of the capacitor can be observed a linear decline in voltage. Whether a capacitor is charging or discharges governed by the fast operational amplifier THS4271 in the function of the comparator. The decisive level of rollover of the operational amplifier is formed by a divider a composite of the R96 and R97. The reason for using a fast operational amplifier instead of the comparator lies in its the involvement of end-double-acting degree, which ensures the same voltage drop at the end transistors of the operational amplifiers in both levels of the output voltage. Operational amplifier inserted between the integrator and a comparator is used only to rotate the phase of the triangular signal. Operational amplifiers THS4271 are chosen deliberately due to its marginal frequency.

IR2110 Class D Amplifier Circuit

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The first described part of the circuit is the very end stage, which is formed driver IR2110 marked as IC10 and IC11 and further transistors of type MOSFET with a designation T1 up to T4. This is basically a two terminal degree involved in the půlmůstkového involvement, which are controlled by the conflicting signals and thus on its outputs reach always a tension in the opposite level. The output voltage levels of the pairs of transistors are connected to the output of the filter the second order, which is formed by the coils L1 and L2 and capacitors C48 to C50. The threads of the coils L1 and L2 will be wound with wire of a diameter of 1.6 mm to make the iron core with the designation T 157-26, in which the operating frequency varies in the range ( 0 – 1 ) MHz. In parallel to the audio output a nonlinear amplifier is connected to the compensation RC filter, which is implemented using resistors R42 and R43 and the capacitor C54. The compensation filter has the task to reduce the impedance connected the speaker to the end-amplifier to the speaker could deliver greater performance.

balanced-input-preamplifier-class-d-ir2110-120x120 ir2110-pwm-class-d-driver-modulator-final-stage-output-filter-120x120 pwm-modulator-class-d-800w-amp-400w-120x120

srcb 800w amp circuit pcb schematic all files alternative links:

FILE DOWNLOAD LINK LIST (in TXT format): LINKS-25591.zip

Published: 2016/06/08 Tags: , , ,



2 Comments “800W Class D Amplifier Circuit IR2110 PWM

  1. Electronics CircuitsElectronics Circuits

    30V 300W SMPS Circuit Project TOP261EN

    Claas D power supply smps TAS5613 For the design of the power supply of the power to TOP261EN 300W is available on the market a large number of integrated control circuits switching power supplies. For the design is selected integrated circuit from the TOPSwitch family of one of the largest manufacturers of switching power supplies Power Integrations. From the available circuit is selected TOP261EN belonging to a series of HX, it is possible to realize a smps power supply with maximum output power of 333W, according to. The manufacturer allows on his website download a freely available design software switching power supplies, this is a program PIExpert. In tab. 4.2 are listed the input parameters for the design of smps using the program PIExpert.

    REPLY
  2. Elektronisch ProjekteElektronisch Projekte

    800W Klasse-D Verstärker Schaltung IR2110 Pulsweitenmodulation

    2x400W Klasse D Verstärker Projekt mit dem IR2110 . Die Funktion der PWM-modulator Für die Klarheit der Erklärung der Funktion des gesamten PWM-modulator ist es ratsam, es zu Spalten, in ein paar blocks entfernt. Der erste und wichtigste block ist der generator des dreieckigen Signals, das aus dem integrator gebildet durch den Operationsverstärker THS4271

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