JPH0288384U

JPH0288384U -

Info

Publication number: JPH0288384U
Application number: JP16699488U
Authority: JP
Priority date: 1988-12-23
Filing date: 1988-12-23
Publication date: 1990-07-12
Anticipated expiration: 2003-12-23
Also published as: JPH0721014Y2

Description

[Brief explanation of drawings]

第１図は請求項１に記載のバツクアツプ電源装
置の要部回路の回路例図、第２図は請求項２に記
載のバツクアツプ電源装置の要部回路の回路例図
、第３図及び第４図は請求項３に記載のバツクア
ツプ電源装置の例図及びその特性グラフ、第５図
はワイヤレス受信器を用いたワイヤレス送信シス
テムの基本構成図、第６図はそのワイヤレス送信
器から送られる信号のフオーマツトを示した図、
第７図は従来のワイヤレス受信器の構成を示すブ
ロツク図、第８図及び第８ａ図はそのバツクアツ
プ回路の回路例図、第９図は別の構成のワイヤレ
ス受信器の要部構成図、第１０図はその特性を示
すグラフである。［符号の説明］、Ａ…バツクアツプ電源装置、
１，２，３…バツクアツプ回路、４…スイツチン
グ回路、５…電圧判別回路、２０６…電源回路、
２０２…揮発メモリ（システムデータテーブル）
、Ｃ…コンデンサ、Ｄ１…第１のダイオード、Ｄ
２…第２のダイオード、Ｄ３…第３のダイオード
、Ｄ４…第４のダイオード、Ｅ１…一次電池、Ｅ
２…二次電池、Ｒ…抵抗、ＳＷ…バツクアツプス
イツチ。 FIG. 1 is a circuit example diagram of the main circuit of the backup power supply device according to claim 1, FIG. 2 is a circuit example diagram of the main circuit of the backup power supply device according to claim 2, and FIGS. FIG. 5 is a basic configuration diagram of a wireless transmission system using a wireless receiver, and FIG. 6 is a diagram of a signal sent from the wireless transmitter. A diagram showing the format,
FIG. 7 is a block diagram showing the configuration of a conventional wireless receiver, FIGS. 8 and 8a are circuit diagrams of its backup circuit, FIG. 9 is a block diagram of main parts of a wireless receiver with another configuration, and FIG. Figure 10 is a graph showing its characteristics. [Explanation of symbols], A...backup power supply device,
1, 2, 3...Backup circuit, 4...Switching circuit, 5...Voltage discrimination circuit, 206...Power supply circuit,
202...Volatile memory (system data table)
, C... Capacitor, D1... First diode, D
2...Second diode, D3...Third diode, D4...Fourth diode, E1...Primary battery, E
2... Secondary battery, R... Resistor, SW... Backup switch.

Claims

[Claims for Utility Model Registration] (1) An ID code included in a data signal transmitted in the form of a radio wave signal from at least one wireless transmitter with an ID code set can be registered in at least volatile memory. so that the I
After registering the D-code, the wireless receiver is configured to receive and process only the data signal sent from the wireless transmitter with the registered ID code, thereby remotely controlling the controlled object. This backup power supply device is a backup power supply device, which is normally supplied via a power supply circuit to a volatile memory in which the ID code can be registered at least in a rewritable manner, when power is cut off. The configuration is such that first and second diodes are connected in series in the forward direction between the power supply circuit and the memory, and the first and second diodes are connected in series in the forward direction. A capacitor connected between the connection point of the diode and the ground and charged by the power supplied from the power supply circuit, and a third diode connected between the cathode of the second diode and the ground, and a third diode connected to the capacitor to be charged by the power supplied from the power supply circuit. A backup circuit is provided in which a primary battery whose voltage level is lower than that of the voltage level and a backup switch are connected in series such that the third diode is in a forward direction with respect to the primary battery; When power is being supplied from the circuit, the memory is supplied with power through the first and second diodes, and the capacitor is charged through the first diode, while the power is supplied to the power supply circuit. When the voltage is cut off, the charge accumulated in the capacitor is supplied to the memory through the second diode, and furthermore, when the terminal voltage of the capacitor becomes lower than the terminal voltage of the primary battery in such a state, the charge stored in the capacitor is supplied to the memory through the second diode. A backup power supply device for a wireless receiver, characterized in that power is supplied from a primary battery to the memory through the third diode. (2) The backup circuit described above uses a secondary battery, a fourth diode and a resistor connected in parallel with respect to the secondary battery, instead of a capacitor. The diode is connected between the connection point of the diode and the ground, and the voltage level obtained by subtracting the forward voltage of the fourth and second diodes from the terminal voltage of the secondary battery is the terminal voltage of the primary battery. The terminal voltage of the secondary battery is higher than the voltage level obtained by subtracting the forward voltage of the third diode, and the voltage level obtained by subtracting the forward voltage of the first diode from the supply voltage of the power supply circuit. From the above 4th
2. The backup power supply device according to claim 1, wherein the voltage level is set higher than the voltage level obtained by subtracting the forward voltage of the diode. (3) The ID code contained in the data signal transmitted in the form of a radio wave signal from at least one wireless transmitter having an ID code set therein can be registered in at least a volatile memory, and the
After registering the D-code, the wireless receiver is configured to receive and process only the data signal sent from the wireless transmitter with the registered ID code, thereby remotely controlling the controlled object. A backup power supply device for use in a wireless receiver, which is normally supplied via a power circuit to an internal circuit of a wireless receiver that includes a memory capable of at least rewritably registering the ID code. The configuration is such that when the current power supply is cut off, power is supplied in its place, and for this purpose, first and second diodes connected in series in the forward direction are connected between the power supply circuit and the memory. , a capacitor connected between the connection point of the first and second diodes and the ground and charged by the power supplied from the power supply circuit; and a third capacitor connected between the cathode of the second diode and the ground. , a primary battery whose voltage level is lower than the maximum charging voltage of the capacitor, and a backup switch are connected in series such that the third diode is in the forward direction with respect to the primary battery. A voltage determination circuit that determines whether the output voltage level of the backup circuit has fallen below a predetermined level, and a switching circuit that controls power supply based on the output of the voltage determination circuit. The output voltage from the backup circuit is directly supplied to the memory, and the output voltage from the backup circuit is supplied to internal circuits of the wireless receiver other than the memory through the switching circuit. A backup power supply device for a wireless receiver, characterized in that the backup power supply device for a wireless receiver is configured to cut off power supplied to the internal circuit through the switching circuit when the output voltage level thereof drops below a predetermined level. (4) The backup circuit includes first and second diodes connected in series in the forward direction between the power supply circuit and the memory, and a connection point between the first and second diodes and ground. connected,
A secondary battery and a fourth battery in the forward direction with respect to the secondary battery.
between the diode and resistor connected in parallel, and the cathode of the second diode and ground,
A third diode, a primary battery whose voltage level is lower than the maximum charging voltage of the capacitor, and a backup switch are connected in series so that the third diode is in a forward direction with respect to the primary battery. 4. The backup power supply device according to claim 3, wherein the backup power supply device is