Method for increasing transmitting power of UHF wireless microphone with transmitter discrete component double power supplies

A dual power supply, wireless microphone technology, applied in electrical components, transmission systems, etc., can solve problems affecting product use and product quality, short battery life, power supply efficiency decline, etc., to achieve ultra-long-distance transmission, improve Efficiency of use and effect of noise reduction

CN108242934AInactive Publication Date: 2018-07-03胡跃进
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-07-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for increasing the transmitting power of a UHF wireless microphone with transmitter discrete component double power supplies. Two independent power supplies formed bysubstantially same discrete components are used, one power supply increase 6.8V to 12V, when the power supply power to an RF power amplifier is increased to 80mW to 100mW from 20mW, whole machine current is increased from 150mA to 350mA, and generally, the minimum usage time of 1000mAH is 155 minutes. The other power supply supplies 5V power independently, two voltage regulator ICs which reduce voltage to 5V from 6.8V to 12V, stable power supply is supplied to a single-chip microcomputer, a display part and a PLL phase-locked loop VCO part, the noise generated by the power supply is reduced. Compared with a conventional microphone transmitter powered by a single supply, the noise is reduced, the audio quality is improved, the usage efficiency of the battery is improved, the cost of use isreduced, the transmission power is increased, the ultra-long-distance transmission is achieved, and the needs of a customer are satisfied.
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Description

technical field

[0001] The invention belongs to the technical field of ultra-long-distance transmission of wireless microphones, and more specifically relates to a method for increasing transmission power by supplying dual power supplies to discrete parts of a transmitter of a UHF wireless microphone. Background technique

[0002] The wireless microphone is composed of several pocket transmitters (can be put in the pocket, the output power is about 0.01W) and a centralized receiver. Each pocket transmitter has a different working frequency. The centralized receiver can Simultaneously receive voice signals of different operating frequencies from each pocket transmitter. It is suitable for occasions such as a stage podium, and the existing wireless microphone is powered by a single power supply.

[0003] However, when powered by a single power supply, the transmitter voltage is increased from 6.8V to 12V, and when the RF power is increased from 20mW to 80mW-100mW, the current...

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Embodiment Construction

[0010] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0011] A method for increasing transmission power by dual-power supply for UHF wireless microphone transmitter discrete parts, using two independent power supplies composed of basically the same discrete components, one increasing 6.8V to 12V, and increasing the power supply for RF power amplifiers from 20mW to When 80mW-100mW, the current of the whole machine increases from 150mA to 350mA, and the general use time of 1000mAH is 155 minutes minimum; another independent 5V power supply reduces two voltage regulator ICs that step down from 6.8-12V to 5V, and provides power for the microcontroller and The display part and...