Showing posts with label Power Amplifier. Show all posts
Showing posts with label Power Amplifier. Show all posts

7/10/2015

Power Amplifier with voltage regulator 4 × 50 Watt TDA8588

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Power Amplifier with voltage regulator 4 × 50 Watt TDA8588
   The TDA8588 is a multiple voltage regulator combined with four independent audio power amplifiers configured in bridge tied load with diagnostic capability. The output voltages of all regulators except regulators 2 and 3 can be controlled via the I2C-bus. However, regulator 3 can be set to 0 V via the I2C-bus. The output voltage of regulator 2 (microcontroller supply) and the maximum output voltage of regulator 3 (mechanical digital and microcontroller supplies) can both be either 5 V or 3.3 V depending on the type number. The maximum output voltages of both regulators are fixed to avoid any risk of damaging the microcontroller that may occur during a disturbance of the I 2C-bus. The amplifier diagnostic functions give information about output offset, load, or short-circuit. Diagnostic functions are controlled via the I2C-bus. The TDA8588 is protected against short-circuit, over-temperature, open ground and open VP connections. If a short-circuit occurs at the input or output of a single amplifier, that channel shuts down, and the other channels continue to operate normally. The channel that has a short-circuit can be disabled by the microcontroller via the appropriate enable bit of the I 2C-bus to prevent any noise generated by the fault condition from being heard.
Speaker protection
    If one side of a speaker is connected to ground, a missing current protection is implemented to prevent damage to the speaker. A fault condition is detected in a channel when there is a mismatch between the power current in the high side and the power current in the low side; during a fault condition the channel will be switched off. The load status of each channel can be read via the I 2C-bus: short to ground (one side of the speaker connected to ground), short to VP (one side of the speaker connected to VP), and shorted load.

Muting 
    A hard mute and a soft mute can both be performed via the I 2C-bus. A hard mute mutes the amplifier within 0.5 ms. A soft mute mutes the amplifier within 20 ms and is less audible. A hard mute is also activated if a voltage of 8 V is applied to pin STB. 

Temperature protection 
     If the average junction temperature rises to a temperature value that has been set via the I2C-bus, a thermal protection pre-warning is activated making pin DIAG LOW. If the temperature continues to rise, all four channels will be muted to reduce the output power (soft thermal clipping). The value at which the temperature mute control activates is fixed; only the temperature at which the thermal protection pre-warning signal occurs can be specified by bit D4 in instruction byte 3. If implementing the temperature mute control does not reduce the average junction temperature, all the power stages will be switched off (muted) at the absolute maximum temperature Tj(max)

Power Amplifier with voltage regulator 4 × 50 Watt TDA8588
Power Amplifier with voltage regulator 4 × 50 Watt TDA8588

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10/20/2014

25W AF Power Amp

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Genereal Description:
STK4017 fabricated on the IMST substrate of our own originality and designed for use in intermediate-power, single-channel, voltage amplifiers. Their packages are made much more compact than those of tje Type Nos. heretofore in use,  thereby meeting the requirements for making  the set smaller and slimmer. 
Circuit diagram:
25W AF Power Amp

Datasheet for STK4017: Download

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50W Power Amplifier

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Circuit Diagram:
50W Power Amplifier
Part list:
Part list

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10/16/2014

Single-channel power amplifier

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Circuit diagram for single-channel power amplifier
Datasheet for ba526: Download
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10/07/2014

TDA2025 50 Watt Power Amplifier

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Circuit diagram for TDA2025
Circuit diagram for TDA2025 50 Watt Power Amplifier
Datasheet for TDA2025: Download
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8/15/2014

200W Power Amplifier

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Description:
The STA5150 is a fully integrated power module de-signed to implement a bash amplifier when used in conjuction with stabp01 digital processor
Circuit Diagram:
200W Power Amplifier  circuit diagram

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8/11/2014

4 x 70 W Power Amplifier TDA7563

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Features:
DMOS POWER OUTPUT
■ NON-SWITCHING HI-EFFICIENCY
■ HIGH OUTPUT POWER CAPABILITY 4x28W/
4Ω @ 14.4V, 1KHZ, 10% THD, 4x40W EIAJ
■ MAX. OUTPUT POWER 4x72W/2Ω
■ FULL I2C BUS DRIVING:
– ST-BY
– INDEPENDENT FRONT/REAR SOFT PLAY/
MUTE
– SELECTABLE GAIN 30dB
– 16dB (FOR LOW NOISE LINE OUTPUT
FUNCTION)
– HIGH EFFICIENCY ENABLE/DISABLE
– I2C BUS DIGITAL DIAGNOSTICS
■ FULL FAULT PROTECTION
■ DC OFFSET DETECTION
■ FOUR INDEPENDENT SHORT CIRCUIT
PROTECTION
■ CLIPPING DETECTOR PIN WITH
SELECTABLE THRESHOLD (2%/10%)
■ ST-BY/MUTE PIN
■ LINEAR THERMAL SHUTDOWN
■ ESD PROTECTION

Circuit Diagram:
Circuit diagram 4 x 70 W Power Amplifier TDA7563

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7/22/2014

4 x 35W HIGH EFFICIENCY QUAD BRIDGE

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 Circuit Diagram:
4 x 35W HIGH EFFICIENCY QUAD BRIDGE

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7/18/2014

2x110W Power Amplifier Class AB

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Circuit diagram:
2x110W Power Amplifier Class AB

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7/15/2014

4x100W FOUR CHANNEL CLASS-T DIGITAL AUDIO AMPLIFIER

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General Description:

The TAA4100 is a four-channel Audio Amplifier that uses Tripath’s proprietary Digital Power 
Processing (DPPTM) technology. Class-T amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers. The TAA4100 has been designed specifically for automotive head unit applications and is configured with four bridged outputs operating on a single 10-26V supply. 

Applications:

  • Automotive Head Units 
  • Automotive Amplifiers 
  • DVD Receivers 
  • Multimedia Speaker Systems 

Benefits:
  • 4-channel (400W) solution – with integrated 
  • FETs - in a single 32-pin SSIP package 
  • High fidelity, high efficiency Class-T 
  • Low external component count 
  • Single-supply operation 

Features:

  • Class-T architecture 
  • Four H-Bridge outputs 
  • “Audiophile” Sound Quality 
  • High Efficiency 
  • High Power @25.0V 
  • 100Wsat. sq. wave @ 4Ω 
  • 80W @ 4Ω, 10% THD+N 
  • “Audiophile” Quality Sound 
  •  0.01% THD+N @ 40W 4Ω 
  • 0.01% IHF-IM @ 1W 4Ω 
  • High Efficiency 
  • 88% @ 100W 4Ω 
  • AM “Low EMI” mode 
  •  Pop-Free startup and shutdown 
  • High Dynamic Range 
  • Mute and Stand-By function 
  • Automatic DC Offset Trim 
  • Clip Detection Output 
  • Protection Modes: 
  • Output Short to VPP and Ground 
  • Output Short across Load 
  • Load Dump Protection 
  • Over-/Under-Voltage Protection 
  • Over-current Protection 
  • Over-temperature Protection 
  • Fortuitous Open Ground 
Circuit diagram:
4x100W FOUR CHANNEL CLASS-T DIGITAL AUDIO AMPLIFIER

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2x500W Power Amplifier circuit TA0105A

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General Description

The TA0105A is a two-channel Amplifier Driver IC that uses Tripath’s proprietary Digital Power Processing (DPPTM) technology. Class-T amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers. Besides the typical application of Constant Voltage Amplification, the TA0105A supply range and feedback structure can be adjusted to emulate legacy Tripath Amplifier Driver products such as the TA0104A.

Features

  • Class-T architecture 
  • Proprietary Digital Power Processing technology 
  • High Supply Voltage Range 
  • “Audiophile” Sound Quality 
  • High Efficiency 
  • Supports wide range of output power levels 
  • Output over-current protection 
  • Over- and under-voltage protection 
  • 38-pin Quad package 

Circuit Diagram:

2x500W Power Amplifier circuit TA0105A


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7/08/2014

AF Power Amplifier IC with Thermal Shutdown

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General Description:


Af powerr amplifier designed for a wide range of supply voltages to enable versatile application in entertainment electronics. The amplifier operates in tje push-pull B mode and is available in tje sip 9 package. The integrated shutdown protects the IC from overtheating.

Circuit diagram:

AF Power Amplifier IC with Thermal Shutdown

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