| Customization: | Available |
|---|---|
| Installation Type: | Duct Type |
| Sensing Type: | Resistive |
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Voltage controlled oscillators refer to the output frequency and the input control voltage has a corresponding relationship with the oscillator circuit (VCO), frequency is a function of the input signal voltage of the oscillator VCO, the working state of the oscillator or the component parameters of the oscillation loop are controlled by the input control voltage, which can constitute an oscillator.
It is an electronic oscillation circuit design that uses a voltage input to control the oscillation frequency. The frequency or repetition ratio of its oscillation will change with different DC voltages, and this feature can be used to use the modulation signal as the input of the VCO to generate different modulation signals, such as FM modulation, PM modulation, and PWM modulation.
The voltage control frequency part of the high-frequency voltage controlled oscillators are usually an LC resonant circuit connected by a varactor diode C and an inductor L. By increasing the reverse bias voltage of the varactor diode, the empty area in the diode will increase, and the capacitance will decrease as soon as the distance between the two conductors becomes longer, and the resonant frequency of the LC circuit will be increased. Conversely, when the reverse bias voltage is reduced, the capacitance in the diode becomes larger and the frequency decreases. Low-frequency voltage-controlled oscillators, on the other hand, choose different methods depending on the frequency, such as changing the charging rate of the capacitor to obtain a voltage-controlled current source
Since 2006,Ef has become a critical supplier and partner to major companies serving the Aerospace, Radar, Defense, Medical, Communications and Specialty Test industries.
Ef's product offerings include:
RF Isolator, RF Circulator
Coaxial Termination, Coaxial Attenuator
RF Filter, Duplexer, Triplexer
Power Divider/Splitter, RF Combiner/Hybrid Coupler
Directional Coupler
TX RX Combiner/Splitter/Multi coupler
Waveguide to Coaxial Adapter, etc.
We offer cost-effective customized solutions in a wide range of RF and Microwave Components and Subsystems
1. Q: Are you a manufacturer or a trading company?
Yes, we are the manufacturer. Our company has 15 years of professional experience in the field of telecommunications and can design and manufacture various microwave waveguide components, coaxial components, antennas and other telecommunications components for the global market.
2. Q: How do I place an OEM order?
A: 1. We will manufacture these products according to the mechanical drawings you provide. Some minor changes may occur during the production process to ensure that we can meet your electrical specifications. Or we can take the first set as a sample to see if it meets your specifications. After communication, the buyer and seller reached an agreement on product details, packaging, purchase quantity, unit price, delivery time, payment terms, etc.
2. The buyer sends a formal PO (Purchase Order) or the seller sends a formal PI (proforma invoice) with detailed terms and conditions.
3. Q: How to solve the after-sales service problem?
After receiving the goods, if you have any dissatisfaction or other problems, please contact us as soon as possible, we will give you a quick response and reasonable solution.
4. Q: How long is your delivery time?
A: Usually 7-15 business days after receiving 100% payment. For bulk orders: 15-35 working days after receipt of deposit.
5. Q: How do I get samples?
A: We need to receive your payment before we can send the sample to you. After the customer confirms the order, we will reduce the sample cost. However, if you are a regular customer of ours, we can send you a sample and then deduct it from your account on the next transaction.
6. Q: What are your payment terms?
A: For small batch orders or urgent orders, you can choose PayPal, Western Union, escrow for the convenience of buyers, 100% payment before delivery; For large orders: 30%/50% of T/T as deposit, balance before shipment.
7. Q: What about the warranty?
A: We can provide a 1-year warranty.
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