A serial power supply low power consumption television receiving antenna signal amplifier circuit

Abstract

The utility model discloses a series power supply formula low -power consumption television receiving antenna signal amplifier circuit, including UHF signal input terminal anti -static and strong pulse circuit (1), UHF channel filter circuit (2), first -stage UHF channel amplification unit (3), second -stage UHF channel amplification unit (4). Further including amplifier UHF and VHF channel hybrid output circuit (11), VHF signal input terminal anti -static and strong pulse circuit (8), VHF channel filter circuit (9), power supply input rectifier filter circuit (6), voltage stabilizing and decoupling circuit (5), decoupling voltage division's front -stage series power supply circuit (7) and VHF amplification unit (10). Or including RF signal input channel filter circuit (13), first -stage RF channel amplification unit (14), second -stage RF amplification unit (15) and decoupling voltage division's front -stage series power supply circuit (7). The utility model discloses through series power supply mode, make the total current of amplifier equal the current of second -stage amplification unit, relative parallel type circuit saves nearly 50% power consumption, reduces the requirement to transformer power, thereby reduces the cost.

Description

Technical Field

[0001] This utility model relates to a television antenna amplifier circuit. Background Technology

[0002] Existing television receiving antenna signal amplifier circuits are generally amplifier circuits composed of two-stage or three-stage amplification units. Each amplification unit is powered independently, and each unit in the amplifier is powered in parallel. The current consumed is the sum of the current consumed by each unit; therefore, the circuit consumes a relatively large amount of electrical energy. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a television antenna amplifier circuit.

[0004] The present invention provides a series-powered low-power television receiving antenna signal amplifier circuit, including a UHF signal input terminal anti-static and strong pulse circuit (1), a UHF channel filter circuit (2), a first-stage UHF channel amplification unit (3), and a second-stage UHF channel amplification unit (4).

[0005] As a preferred embodiment, it also includes an amplifier UHF and VHF channel mixed output circuit (11), a VHF signal input anti-static and strong pulse circuit (8), a VHF channel filter circuit (9), a power supply input rectifier filter circuit (6), a voltage regulator and decoupling circuit (5), a decoupling voltage divider pre-stage series power supply circuit (7), and a VHF amplification unit (10).

[0006] D2 is the anti-static and high-pulse circuit for the UHF signal input terminal (1); L1, L2, C1, and C2 form the UHF channel filter circuit (2); L3, R1, R2, R3, R15, C3, C4, and Q1 form the first-stage UHF channel amplifier unit (3); R4, R6, R7, R8, C8, C7, L4, and Q2 form the second-stage UHF channel amplifier unit (4); C12, C13, C14, L6, L11, R12, R17, L10, and C15 form the amplifier's UHF and VHF channel mixed output circuit (11).

[0007] D1 is the anti-static and high-pulse circuit for the VHF signal input terminal (8); L7, L8, L9, C17, and C18 form the VHF channel filter circuit (9); R9, R10, C16, and Q3 form the VHF amplifier unit (10).

[0008] L5, C21, C9, C19, C20 and D4 form the power supply input rectifier and filter circuit (6); C11, C10, R5, R14 and D3 form the voltage regulation and decoupling circuit (5); R11, R13, C6 and L12 form the pre-stage series power supply circuit for decoupling voltage divider (7).

[0009] The UHF signal is transmitted through the input terminal UHFIN to the anti-static and high-pulse circuit (1), the UHF channel filter circuit (2), the first-stage UHF channel amplifier unit (3), the second-stage UHF channel amplifier unit (4), and the channel mixing output circuit (11) to the output port RFOUT / POWERCC; the VHF signal is transmitted through the input terminal VHFIN to the anti-static and high-pulse circuit (8), the VHF channel filter circuit (9), the VHF channel amplifier unit (10), and the channel mixing output circuit (11) to the output port RFOUT / POWERCC; thus realizing the amplification and transmission of the television signal.

[0010] The power supply method of the series-type low-power amplifier is as follows: the power supply voltage is input through the RFOUT / POWERCC port, and then passes through the rectifier and filter circuit (6), the voltage regulator and decoupling circuit (5), the second-stage UHF channel amplifier unit (4), and the decoupling voltage divider pre-stage series power supply circuit (7) to the first-stage UHF channel amplifier unit (3) and the VHF amplifier unit (10); thus realizing the series-type power supply amplifier circuit of this amplifier; since the operating voltage of the first-stage UHF channel amplifier unit (3) and the VHF channel amplifier unit (10) is taken from the emitter of the transistor Q2 of the second-stage UHF channel amplifier unit (4), a series power supply method is formed, and the total current of the amplifier is the same as the current of the second-stage UHF channel amplifier unit (4), thus achieving a low power consumption effect of saving nearly 50%.

[0011] As a preferred embodiment, it also includes an amplifier UHF and VHF channel mixed output circuit (11), a VHF signal input anti-static and strong pulse circuit (8), a VHF channel filter circuit (9), a power supply input rectifier filter circuit (6), a voltage regulator and decoupling circuit (5), a decoupling voltage divider pre-stage series power supply circuit (7), and a VHF amplification unit (10).

[0012] D1 is the anti-static and high-pulse circuit for the UHF signal input terminal (1); L1, C1, and C2 form the UHF channel filter circuit (2); R1, R2, R3, C3, and Q1 form the first-stage UHF channel amplifier unit (3); L2, C4, and C5 form the input filter of the second-stage amplifier circuit (12); R6, R7, R8, R9, R10, C8, L4, and Q2 form the second-stage UHF channel amplifier unit (4).

[0013] L6, C10, C11, C13, C14 and D3 form a power input rectifier and filter circuit (6); C12, C5, R11, R12 and D2 form a voltage regulator and decoupling circuit (5); R5, C6, C7 and L3 form a pre-stage series power supply circuit for decoupling voltage divider (7).

[0014] The UHF signal is transmitted through the input terminal UHFIN to the anti-static and high pulse circuit (1), the UHF channel filter circuit (2), the first stage UHF channel amplification unit (3), the second stage amplification circuit input filter (12), the second stage UHF channel amplification unit (4), and then through L5 and C6 to the output port RFOUT / POWERCC to output the signal; thus realizing the amplification and transmission of the television signal.

[0015] The power supply method of the series-type low-power amplifier is as follows: the power supply voltage is input through the RFOUT / POWERCC port, and then passes through the rectifier and filter circuit (6), the voltage regulator and decoupling circuit (5), the second-stage UHF channel amplifier unit (4), and the decoupling voltage divider pre-stage series power supply circuit (7) to the first-stage UHF channel amplifier unit (3); thus realizing the series-type power supply amplifier circuit of this amplifier; since the operating voltage of the first-stage UHF channel amplifier unit (3) is taken from the emitter of the transistor Q2 of the second-stage UHF channel amplifier unit (4), a series power supply method is formed, and the total current of the amplifier is the same as the current of the second-stage UHF channel amplifier unit (4), thus achieving a low power consumption effect of saving nearly 50%.

[0016] Preferably, L1, L2, L3, C1, C2, C3, and C4 form an RF signal input channel filter circuit (13); L4, R1, R2, R3, C5, and Q1 form a first-stage RF channel amplifier unit (14); and L5, R4, R5, R6, R7, C8, C7, and Q2 form a second-stage RF pass amplifier unit (15).

[0017] R8, R9, C9, C10 and L7 form the pre-stage series power supply circuit for decoupling voltage divider (7).

[0018] The RF signal is transmitted through the input terminal RFIN to the channel filter circuit (13), the first-stage RF channel amplification unit (14), the second-stage RF channel amplification unit (15), and then to the output port RFOUT / POWERCC; thus realizing the amplification and transmission of the television signal.

[0019] The power supply method of the series-type low-power amplifier is that the DC power supply voltage is input through the RFOUT / POWERCC port, and then through the second-stage RF channel amplifier unit (15), the decoupling voltage divider of the pre-stage series power supply circuit (7) to the first-stage RF channel amplifier unit (14), thus realizing the series power supply amplifier circuit of this amplifier. Since the operating voltage of the first-stage RF channel amplifier unit (14) is taken from the emitter of the transistor Q2 of the second-stage RF channel amplifier unit (15), a series power supply method is formed. The total current of the amplifier is the same as that of the second-stage UHF channel amplifier unit (15), thus achieving a low power consumption effect of saving nearly 50%.

[0020] The beneficial effects of this invention are: because the amplifier operates with lower power consumption than the parallel circuit, it consumes less electricity, thus reducing the power of the transformer supplying the voltage and thereby reducing costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the principle of Example 1.

[0022] Figure 2 This is a schematic diagram of the principle of Example 2.

[0023] Figure 3 This is a schematic diagram of the principle of Example 3. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings, but it should not be construed as limiting the scope of the subject matter of the present invention to the above embodiments. Example

[0025] like Figure 1 As shown, a series-powered low-power television receiver antenna signal amplifier circuit includes an anti-static and high-pulse circuit at the UHF signal input terminal (1), a UHF channel filter circuit (2), a first-stage UHF channel amplifier unit (3), a second-stage UHF channel amplifier unit (4), a mixed output circuit for the amplifier's UHF and VHF channels (11), an anti-static and high-pulse circuit at the VHF signal input terminal (8), a VHF channel filter circuit (9), a power supply input rectification and filter circuit (6), a voltage regulator and decoupling circuit (5), a pre-stage series power supply circuit for decoupling and voltage division (7), and a VHF amplifier unit (10).

[0026] D2 is the anti-static and high-pulse circuit for the UHF signal input terminal (1); L1, L2, C1, and C2 form the UHF channel filter circuit (2); L3, R1, R2, R3, R15, C3, C4, and Q1 form the first-stage UHF channel amplifier unit (3); R4, R6, R7, R8, C8, C7, L4, and Q2 form the second-stage UHF channel amplifier unit (4); C12, C13, C14, L6, L11, R12, R17, L10, and C15 form the amplifier's UHF and VHF channel mixed output circuit (11).

[0027] D1 is the anti-static and high-pulse circuit for the VHF signal input terminal (8); L7, L8, L9, C17, and C18 form the VHF channel filter circuit (9); R9, R10, C16, and Q3 form the VHF amplifier unit (10).

[0028] L5, C21, C9, C19, C20 and D4 form the power supply input rectifier and filter circuit (6); C11, C10, R5, R14 and D3 form the voltage regulation and decoupling circuit (5); R11, R13, C6 and L12 form the pre-stage series power supply circuit for decoupling voltage divider (7).

[0029] The UHF signal is transmitted through the input terminal UHFIN to the anti-static and high-pulse circuit (1), the UHF channel filter circuit (2), the first-stage UHF channel amplifier unit (3), the second-stage UHF channel amplifier unit (4), and the channel mixing output circuit (11) to the output port RFOUT / POWERCC; the VHF signal is transmitted through the input terminal VHFIN to the anti-static and high-pulse circuit (8), the VHF channel filter circuit (9), the VHF channel amplifier unit (10), and the channel mixing output circuit (11) to the output port RFOUT / POWERCC; thus realizing the amplification and transmission of the television signal.

[0030] The power supply method of the series-type low-power amplifier is as follows: the power supply voltage is input through the RFOUT / POWERCC port, and then passes through the rectifier and filter circuit (6), the voltage regulator and decoupling circuit (5), the second-stage UHF channel amplifier unit (4), and the decoupling voltage divider pre-stage series power supply circuit (7) to the first-stage UHF channel amplifier unit (3) and the VHF amplifier unit (10); thus realizing the series-type power supply amplifier circuit of this amplifier; since the operating voltage of the first-stage UHF channel amplifier unit (3) and the VHF channel amplifier unit (10) is taken from the emitter of the transistor Q2 of the second-stage UHF channel amplifier unit (4), a series power supply method is formed, and the total current of the amplifier is the same as the current of the second-stage UHF channel amplifier unit (4), thus achieving a low power consumption effect of saving nearly 50%. Example

[0031] like Figure 2 As shown, a series-powered low-power television receiving antenna signal amplifier circuit includes an anti-static and high-pulse circuit (1) at the UHF signal input terminal, a UHF channel filter circuit (2), a first-stage UHF channel amplification unit (3), a second-stage amplification circuit input filter (12), a second-stage UHF channel amplification unit (4), a power supply input rectification and filter circuit (6), a voltage regulation and decoupling circuit (5), and a pre-stage series power supply circuit (7) for decoupling and voltage division; this embodiment does not include the VHF section and the mixed output circuit.

[0032] D1 is the anti-static and high-pulse circuit for the UHF signal input terminal (1); L1, C1, and C2 form the UHF channel filter circuit (2); R1, R2, R3, C3, and Q1 form the first-stage UHF channel amplifier unit (3); L2, C4, and C5 form the input filter of the second-stage amplifier circuit (12); R6, R7, R8, R9, R10, C8, L4, and Q2 form the second-stage UHF channel amplifier unit (4).

[0033] L6, C10, C11, C13, C14 and D3 form a power input rectifier and filter circuit (6); C12, C5, R11, R12 and D2 form a voltage regulator and decoupling circuit (5); R5, C6, C7 and L3 form a pre-stage series power supply circuit for decoupling voltage divider (7).

[0034] The UHF signal is transmitted through the input terminal UHFIN to the anti-static and high pulse circuit (1), the UHF channel filter circuit (2), the first stage UHF channel amplification unit (3), the second stage amplification circuit input filter (12), the second stage UHF channel amplification unit (4), and then through L5 and C6 to the output port RFOUT / POWERCC to output the signal; thus realizing the amplification and transmission of the television signal.

[0035] The power supply method of the series-type low-power amplifier is as follows: the power supply voltage is input through the RFOUT / POWERCC port, and then passes through the rectifier and filter circuit (6), the voltage regulator and decoupling circuit (5), the second-stage UHF channel amplifier unit (4), and the decoupling voltage divider pre-stage series power supply circuit (7) to the first-stage UHF channel amplifier unit (3); thus realizing the series-type power supply amplifier circuit of this amplifier; since the operating voltage of the first-stage UHF channel amplifier unit (3) is taken from the emitter of the transistor Q2 of the second-stage UHF channel amplifier unit (4), a series power supply method is formed, and the total current of the amplifier is the same as the current of the second-stage UHF channel amplifier unit (4), thus achieving a low power consumption effect of saving nearly 50%. Example

[0036] like Figure 3 As shown, a series-powered low-power television receiving antenna signal amplifier circuit includes an RF signal input channel filter circuit (13), a first-stage RF channel amplifier unit (14), a second-stage RF channel amplifier unit (15), and a decoupling voltage divider pre-stage series power supply circuit (7).

[0037] L1, L2, L3, C1, C2, C3, and C4 form the RF signal input channel filter circuit (13); L4, R1, R2, R3, C5, and Q1 form the first-stage RF channel amplifier unit (14); L5, R4, R5, R6, R7, C8, C7, and Q2 form the second-stage RF pass amplifier unit (15).

[0038] R8, R9, C9, C10 and L7 form the pre-stage series power supply circuit for decoupling voltage divider (7).

[0039] The RF signal is transmitted through the input terminal RFIN to the channel filter circuit (13), the first-stage RF channel amplification unit (14), the second-stage RF channel amplification unit (15), and then to the output port RFOUT / POWERCC; thus realizing the amplification and transmission of the television signal.

[0040] The power supply method of the series-type low-power amplifier is that the DC power supply voltage is input through the RFOUT / POWERCC port, and then through the second-stage RF channel amplifier unit (15), the decoupling voltage divider of the pre-stage series power supply circuit (7) to the first-stage RF channel amplifier unit (14), thus realizing the series power supply amplifier circuit of this amplifier. Since the operating voltage of the first-stage RF channel amplifier unit (14) is taken from the emitter of the transistor Q2 of the second-stage RF channel amplifier unit (15), a series power supply method is formed. The total current of the amplifier is the same as that of the second-stage UHF channel amplifier unit (15), thus achieving a low power consumption effect of saving nearly 50%.

Claims

1. A series-powered low-power television receiver antenna signal amplifier circuit, characterized in that, It includes an anti-static and high-pulse circuit for the UHF signal input terminal (1), a UHF channel filter circuit (2), a first-stage UHF channel amplifier unit (3), and a second-stage UHF channel amplifier unit (4).

2. The series-powered low-power television receiving antenna signal amplifier circuit according to claim 1, characterized in that, L1, L2, L3, C1, C2, C3, and C4 form the RF signal input channel filter circuit (13); L4, R1, R2, R3, C5, and Q1 form the first-stage RF channel amplifier unit (14); L5, R4, R5, R6, R7, C8, C7, and Q2 form the second-stage RF channel amplifier unit (15); R8, R9, C9, C10, and L7 form the pre-stage series power supply circuit (7) for decoupling voltage division; the RF signal passes through the input terminal RFIN to the channel filter circuit (13), the first-stage RF channel amplifier unit (14), the second-stage RF channel amplifier unit (15), and then to the output port RFOUT / POWERCC; thus realizing the amplification and transmission of the television signal.

3. The series-powered low-power television receiving antenna signal amplifier circuit according to claim 1, characterized in that, It also includes a mixed output circuit for UHF and VHF channels of the amplifier (11), an anti-static and strong pulse circuit for the VHF signal input terminal (8), a VHF channel filter circuit (9), a power supply input rectifier filter circuit (6), a voltage regulator and decoupling circuit (5), a pre-stage series power supply circuit for decoupling voltage divider (7), and a VHF amplification unit (10).

4. The series-powered low-power television receiving antenna signal amplifier circuit according to claim 3, characterized in that, D1 is the anti-static and high-pulse circuit for the UHF signal input terminal (1); L1, C1, and C2 form the UHF channel filter circuit (2); R1, R2, R3, C3, and Q1 form the first-stage UHF channel amplifier unit (3); L2, C4, and C5 form the input filter of the second-stage amplifier circuit (12); R6, R7, R8, R9, R10, C8, L4, and Q2 form the second-stage UHF channel amplifier unit (4); L6, C10, C11, C13, C14, and D3 form the power supply input rectifier filter circuit (6); C1 2. C5, R11, R12 and D2 form a voltage regulator and decoupling circuit (5); R5, C6, C7 and L3 form a pre-stage series power supply circuit for decoupling voltage divider (7); the UHF signal is transmitted through the input terminal UHFIN to the anti-static and strong pulse circuit (1), the UHF channel filter circuit (2), the first stage UHF channel amplifier unit (3), the second stage amplifier circuit input filter (12), the second stage UHF channel amplifier unit (4), and then through L5 and C6 to the output port RFOUT / POWERCC to output the signal; thus realizing the amplification and transmission of the television signal.

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