Definition of triac in English:

triac

noun ˈtrʌɪakˈtrīak

Electronics

A three-electrode semiconductor device that will conduct in either direction when triggered by a positive or negative signal at the gate electrode.
〔电子〕三端双向可控硅开关元件
Example sentencesExamples
- Triacs come in many shapes, sizes, and colors.
- A triac is an AC conduction device and may be thought of as two antiparallel thyristors monolithically integrated onto the same silicon chip.
- A lamp module is similar, but has a triac instead of a relay and will respond to dimming commands as well as on or off commands.
- The microcontroller assures control of switch means, such as triacs, switches and relays, and ensures that braking is effectuated regardless of the phase in the power cycle of the alternating current.
- A second triac or the like is connected between the intermediate point of the winding and the terminal of the voltage supply to which the first triac is connected.

Origin

1960s: from triode + AC (short for alternating current).

Definition of triac in US English:

triac

nounˈtrīak

Electronics

A three-electrode semiconductor device that will conduct in either direction when triggered by a positive or negative signal at the gate electrode.
〔电子〕三端双向可控硅开关元件
Example sentencesExamples
- Triacs come in many shapes, sizes, and colors.
- A second triac or the like is connected between the intermediate point of the winding and the terminal of the voltage supply to which the first triac is connected.
- The microcontroller assures control of switch means, such as triacs, switches and relays, and ensures that braking is effectuated regardless of the phase in the power cycle of the alternating current.
- A lamp module is similar, but has a triac instead of a relay and will respond to dimming commands as well as on or off commands.
- A triac is an AC conduction device and may be thought of as two antiparallel thyristors monolithically integrated onto the same silicon chip.

Origin

1960s: from triode + AC (short for alternating current).

词汇	triac
释义	Definition of triac in English: triac noun ˈtrʌɪakˈtrīak Electronics A three-electrode semiconductor device that will conduct in either direction when triggered by a positive or negative signal at the gate electrode. 〔电子〕三端双向可控硅开关元件 Example sentencesExamples Triacs come in many shapes, sizes, and colors. A triac is an AC conduction device and may be thought of as two antiparallel thyristors monolithically integrated onto the same silicon chip. A lamp module is similar, but has a triac instead of a relay and will respond to dimming commands as well as on or off commands. The microcontroller assures control of switch means, such as triacs, switches and relays, and ensures that braking is effectuated regardless of the phase in the power cycle of the alternating current. A second triac or the like is connected between the intermediate point of the winding and the terminal of the voltage supply to which the first triac is connected. Origin 1960s: from triode + AC (short for alternating current). Definition of triac in US English: triac nounˈtrīak Electronics A three-electrode semiconductor device that will conduct in either direction when triggered by a positive or negative signal at the gate electrode. 〔电子〕三端双向可控硅开关元件 Example sentencesExamples Triacs come in many shapes, sizes, and colors. A second triac or the like is connected between the intermediate point of the winding and the terminal of the voltage supply to which the first triac is connected. The microcontroller assures control of switch means, such as triacs, switches and relays, and ensures that braking is effectuated regardless of the phase in the power cycle of the alternating current. A lamp module is similar, but has a triac instead of a relay and will respond to dimming commands as well as on or off commands. A triac is an AC conduction device and may be thought of as two antiparallel thyristors monolithically integrated onto the same silicon chip. Origin 1960s: from triode + AC (short for alternating current).
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