{"id":3269,"date":"2023-10-13T09:09:45","date_gmt":"2023-10-13T09:09:45","guid":{"rendered":"https:\/\/matob.web.id\/random\/?p=3269"},"modified":"2023-10-13T09:09:45","modified_gmt":"2023-10-13T09:09:45","slug":"diagram-of-the-ocl-150-watt-mono-and-stereo-amplifier-circuit","status":"publish","type":"post","link":"https:\/\/matob.web.id\/random\/diagram-of-the-ocl-150-watt-mono-and-stereo-amplifier-circuit\/","title":{"rendered":"Diagram of the OCL 150 Watt Mono and Stereo Amplifier Circuit"},"content":{"rendered":"

The power amplifier circuit is an electronic circuit consisting of passive components and an amplifier that functions to amplify the input signal.\u00a0<\/span><\/p>\n

The input signal in question is sound coming from a microphone, radio frequency or from a digital file that is converted to an analog signal.<\/span><\/p>\n

The components used in the power amplifier circuit are active components such as transistors.\u00a0The transistor in the amplifier circuit works in the active region, between saturation and cut-off.<\/span><\/p>\n

Amplifier circuits are built using several different systems.\u00a0The most popular systems include\u00a0<\/span>Output Transformer Less<\/span><\/i>\u00a0(OTL),\u00a0<\/span>Output Capacitor Less<\/span><\/i>\u00a0(OCL) and\u00a0<\/span>Bridge Tiel Load<\/span><\/i>\u00a0(BTL).\u00a0The diagram below uses the OCL system.<\/span><\/p>\n

\"Amplifier
Amplifier OCL Kit<\/figcaption><\/figure>\n

What is OCL?<\/span><\/b><\/p>\n

OCL is an amplifier system where the circuit does not use a capacitor as a coupling and filter at the amplifying output.\u00a0Usually, capacitors are installed before the circuit is connected to the speakers as coupling and protection against signals that might damage the speakers.<\/span><\/p>\n

The amplifier with the OCL system has a wide frequency response so that the audio frequency range can be produced properly.\u00a0Powered by a final transistor with a Push-Pull configuration providing maximum amplification of the sound signal produced.<\/span><\/p>\n

But behind its advantages, the OCL system has a weakness, namely if one of the final transistors is damaged (short circuit), then it is possible that the speaker will also be damaged.\u00a0<\/span><\/p>\n

Even so, this can be overcome by buying components with quality brands and using a speaker protector.<\/span><\/p>\n

Mono and Stereo Amplifier Circuits<\/span><\/b><\/p>\n

A mono amplifier is a circuit whose input is a single phase signal where the audio inputs are mixed together and amplified in one amplifier circuit.\u00a0<\/span>Usually mono circuits use a single speaker.\u00a0\u00a0<\/span><\/p>\n

\"Amplifier
Amplifier mono<\/figcaption><\/figure>\n

Although in practice two or more speakers can be in series or parallel, in reality the sound produced remains the same on each speaker.\u00a0<\/span>Examples of mono speakers can be seen on old FM radios.<\/span><\/p>\n

\"Amplifier
Amplifier Stereo<\/figcaption><\/figure>\n

It’s different with the Stereo amplifier, where the signal phase is separated between R and L so that it uses 2 speakers.\u00a0<\/span>The Stereo Circuit produces a more natural sound because the output signals between the R and L of the Speaker are different, creating a realistic sound feel.\u00a0<\/span>An example is the speakers in a movie theater or performance theater<\/span><\/p>\n

\"Diagram
Diagram of the OCL 150 Watt Mono and Stereo Amplifier Circuit<\/figcaption><\/figure>\n

List of components used<\/strong><\/b><\/span><\/span><\/p>\n

A complete explanation of the list of components used and their descriptions can be seen in the table below<\/span><\/p>\n

\"table\"<\/p>\n

Notes :<\/span><\/p>\n

The diagram and list of components above is a series of mono alias single speakers. If you want to use stereo speakers, you have to use 2 mono circuits for the R and L speakers.<\/span><\/p>\n

The final transistor used may be of the type MJ2955\/MJ3055 or TIP2955\/TIP3055<\/span><\/p>\n

Power Supply<\/b><\/p>\n

The power supply used in the OCL amplifier circuit uses a symmetrical type with plus (+), ground and minus (-) outputs.\u00a0The power supply circuit can be seen in the image below:<\/span><\/p>\n

\"power
Amplifier power supply<\/figcaption><\/figure>\n

Tips on making amplifier circuits<\/span><\/b><\/p>\n

    \n
  1. Use genuine and quality components.\u00a0For example, the resistor uses metal film material with a tolerance of 1% and the final transistor uses the original ST component.<\/span><\/li>\n
  2. Use a pure 5A transformer and its large capacitance filter capacitor, resulting in low ripple.\u00a0The ripple voltage will affect the sound quality.<\/span><\/li>\n
  3. It’s best to use a Speaker Protector to protect the speakers from damage due to a short circuit in the amplifier circuit.<\/span><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    The power amplifier circuit is an electronic circuit consisting of passive components and an amplifier that functions to amplify the […]<\/p>\n","protected":false},"author":1,"featured_media":3273,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[9,291],"tags":[],"class_list":["post-3269","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology","category-engineering"],"_links":{"self":[{"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/posts\/3269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/comments?post=3269"}],"version-history":[{"count":1,"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/posts\/3269\/revisions"}],"predecessor-version":[{"id":3276,"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/posts\/3269\/revisions\/3276"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/media\/3273"}],"wp:attachment":[{"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/media?parent=3269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/categories?post=3269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/matob.web.id\/random\/wp-json\/wp\/v2\/tags?post=3269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}