Connector and switches
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Connectors are used to connect electrical circuits through wires and cables. Permanent connections are made through soldering or crimping, while temporary connections use plugs and sockets. Key properties of connectors include being keyed to prevent incorrect insertion, locked to prevent accidental disconnection, and water or moisture resistant. Common connector types discussed are USB, audio, and power connectors. Switches are electromechanical devices that connect or disconnect circuits. Switches are classified based on the number of poles and throws, determining the number of connections that can be made. Examples given are SPST, SPDT, DPST, and DPDT switches.
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Connector and switches
- 1. CONNECTOR & SWITCHES Prepared By Manthan Dhavne
- 2. CONNECTORS • “A conductive device used for connecting electrical circuits by means of wires and cables.” Electrical connectors consist of plugs & jacks. • Wires and cables are connected using permanent and temporary connections. Permanent connections are made by soldering, welding or crimping whereas plugs & sockets (jacks) are generally used for temporary connections. • Seperable connections are used when circuits can be connected to other electrical components.
- 3. Properties of Connectors Keyed connectors are designed to only connect at a specific orientation. This prevents the user from damaging pins or inserting them into the wrong sockets. Pins and casing are oriented so that the plug cannot be inserted incorrectly Locked connectors provide a means to lock the connection in place, preventing the connection from being undone accidentally. Hermetically sealed connectors are fully function underwater and can withstand water pressure up to a certain depth.
- 4. Properties of Connectors (contd.) Water resistant connectors are designed to protect connections from water damage. Moisture / oil resistant connectors are designed to protect connections from oil or moisture damage. EMI or RFI filtering on connectors provides protection against electromagnetic interference (EMI) and/or radio frequency interference (RFI).
- 5. Types of Connectors 1. USB Connectors 2. Audio Connectors 3. Power Connectors
- 6. USB Connectors USB Connectors come in two flavors host & peripheral. In the USB standard, there is a difference between the two, & the connectors on cables & devices reflect this. ▲USB-A Connector USB-B Connector USB Mini Connector USB Micro Connector▲ ▲ ▲
- 7. Audio Connectors Another familiar connector group are those used for audio-visual applications – RCA & Phono. While these can’t be truly be considered to be same family, as the USB connectors. ▲Female RCA Connector Female Phono Connector▲ ▲ Male RCA Connector Male Phono Connector▲
- 8. Power Connectors While many connectors carry power in addition to data, some connectors are used specifically to provide power connections to devices. ▲ Barrel Connector IEC Connector Molex Connector JST Connector▲ ▲ ▲
- 9. SWITCHES • “An electromechanical device used to connect or disconnect a circuit is known as Switch.” • The moving part of a switch used to connect or disconnect a circuit is called a Pole. • The types of switches depend on the connections of the circuit they make. • Two essential components such as pole & throw can confirm what types of connections a switch can make. These two components are also used to define variations of switch contact.
- 10. Types of Switches The types of switches are classisfied into four types namely: • SPST (Single Pole Single Throw) • SPDT (Single Pole Double Throw) • DPST (Double Pole Single Throw) • DPDT (Double Pole Double Throw)
- 11. SPST & SPDT SPST – It is a basic ON/OFF switch, that is used to connect or break the connection between two terminals. The power supply for the owl circuit is given by this switch. SPDT – The SPDT switch is a three terminal switch, one terminal is used as input & remaining two terminals are used. It joins a mutual terminal to one or the other of two terminals. ▲ SPST ▲ SPDT
- 12. DPST & DPDT DPST – This switch contains of two poles that means it includes two identical switches located on side by side. It is operated by one single toggle, which means that two discrete circuits are controlled at a time through one push. DPDT – This switch is equal to two SPDT switches, it means two separate circuits, connecting two inputs of each circuit to one of two outputs. The switch position controls the number of ways & from the two contacts each contact can be routed. ▲ DPST ▲ DPDT
- 13. THANK YOU